General Science Toughest Quiz! Trivia

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  • 1/222 Questions

    What kind of energy do we get from the sun?

    • Icy
    • Factored
    • Polar
    • Solar
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About This Quiz


What we have here is a general science toughest quiz! Science is a field that encompasses a lot of facts surrounding different states of matter and the changes it undergoes and at the same time helps us understand the environment and living things within it. By taking this quiz, you will be assured of covering at least every science topic. Be sure to check it out and get to refresh your understanding!

General Science Toughest Quiz! Trivia - Quiz

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  • 2. 

    Which of the following is NOT a conductor?

    • Steel

    • Wood

    • Copper

    • Iron

    Correct Answer
    A. Wood
    Explanation
    Wood is not a conductor because it is an insulator. Unlike materials such as steel, copper, and iron, wood does not allow the flow of electrical current easily. This is due to its molecular structure, which does not have free electrons that can move and carry charge. Therefore, wood is unable to conduct electricity effectively, making it the correct answer as the non-conductor in this question.

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  • 3. 

    Sound is produced by ________________.

    • Staring

    • Talking

    • Plugging in the radio

    • Vibrations

    Correct Answer
    A. Vibrations
    Explanation
    Sound is produced by vibrations. When an object vibrates, it creates disturbances in the surrounding air molecules. These disturbances then travel through the air as sound waves, which can be detected by our ears. Therefore, vibrations are the primary source of sound production.

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  • 4. 

    Which one of these forces shapes Earth's surface?

    • Glaciers

    • Oceans

    • Winds

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    All of the above forces shape Earth's surface. Glaciers erode and carve out valleys and mountains, oceans erode coastlines and deposit sediment, and winds erode and transport sediment. These forces work together to shape the landforms we see on Earth's surface.

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  • 5. 

    Which of the following would be an example of a very good conductor of heat energy?

    • Liquid

    • Wood

    • Air

    • Metal

    Correct Answer
    A. Metal
    Explanation
    Metal is a very good conductor of heat energy because its atoms are closely packed together, allowing heat to easily transfer through the material. Metals have a large number of free electrons that are able to move freely, which further enhances their ability to conduct heat. This is why metal objects, such as pots and pans, become hot quickly when placed on a heat source. In contrast, liquids, wood, and air are poor conductors of heat energy as their atoms or molecules are not as closely packed together, resulting in slower heat transfer.

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  • 6. 

    Which planet has been "demoted?"

    • Pluto

    • Mars

    • Uranus (ha ha)

    • Neptune

    Correct Answer
    A. Pluto
    Explanation
    Pluto has been "demoted" because it was reclassified as a "dwarf planet" in 2006 by the International Astronomical Union (IAU). Prior to this, Pluto was considered the ninth planet in our solar system. However, the IAU's decision was based on new criteria for defining planets, which stated that a planet must "clear its orbit" of other debris. Since Pluto shares its orbit with other objects in the Kuiper Belt, it did not meet this criterion and was therefore reclassified.

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  • 7. 

    Three common states of matter are

    • Solid, water, and gas.

    • Ice, water, and gas.

    • Solid, liquid, and gas.

    • Solid, liquid, and air.

    Correct Answer
    A. Solid, liquid, and gas.
    Explanation
    The correct answer is solid, liquid, and gas. This is because these three states of matter are commonly observed and studied in science. Solids have a definite shape and volume, while liquids have a definite volume but take the shape of their container, and gases have neither a definite shape nor volume. Water is an example of a substance that can exist in all three states, as ice (solid), water (liquid), and steam (gas). Air, on the other hand, is a mixture of gases and not considered a distinct state of matter.

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  • 8. 

    By studying starlight, astronomers may learn

    • That elements that are in the star.

    • The surface temperature of the star.

    • The speed at which the star is moving toward or away from Earth.

    • All of the above.

    Correct Answer
    A. All of the above.
    Explanation
    By studying starlight, astronomers can gather information about the elements present in the star through spectroscopy. The absorption and emission lines in the star's spectrum reveal the specific elements that make up the star. Additionally, the temperature of the star's surface can be determined by analyzing the intensity of different wavelengths of light emitted by the star. Lastly, the Doppler effect can be used to measure the shift in the wavelength of starlight, which indicates whether the star is moving towards or away from Earth, providing information about its speed and direction. Therefore, all of the given options are correct.

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  • 9. 

    Using superconductors to build computers is an example of

    • Technology.

    • Applied biology.

    • Pure science.

    • An experiment.

    Correct Answer
    A. Technology.
    Explanation
    Using superconductors to build computers is an example of technology because it involves the practical application of scientific knowledge to create a functional and useful product. Superconductors, which are materials that can conduct electricity with zero resistance at very low temperatures, have been extensively studied in the field of pure science. However, their application in computer technology requires the development of specialized manufacturing processes and engineering techniques, making it a technological advancement.

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  • 10. 

    Vibrations in Earth caused by sudden movements of rock are called

    • Epicenters.

    • Earthquakes.

    • Faults.

    • Volcanoes.

    Correct Answer
    A. Earthquakes.
    Explanation
    Vibrations in the Earth caused by sudden movements of rock are known as earthquakes. These movements occur along faults, which are fractures in the Earth's crust. Earthquakes can result from tectonic plate movements, volcanic activity, or human-induced activities such as mining or reservoir-induced seismicity. They can vary in magnitude and can cause significant damage and loss of life. The term "epicenter" refers to the point on the Earth's surface directly above the focus or origin of an earthquake. Volcanoes, on the other hand, are mountains or openings in the Earth's crust through which molten rock, ash, and gases are ejected.

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  • 11. 

    Giant elliptical galaxies have _________ stars.

    • Dozens

    • Thousands

    • Hundreds

    • Millions

    Correct Answer
    A. Millions
    Explanation
    Giant elliptical galaxies are known to have millions of stars. These galaxies are among the largest and most massive in the universe, and their size allows them to contain a vast number of stars. The gravitational forces within these galaxies enable the accumulation of such a high number of stars, resulting in millions of stars being present within them.

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  • 12. 

    The center of our solar system is

    • Earth.

    • The Moon.

    • The sun.

    • The Oort cloud.

    Correct Answer
    A. The sun.
    Explanation
    The correct answer is the sun. The sun is considered the center of our solar system because it is the largest celestial body and contains the majority of the mass. It exerts gravitational force on all the other objects in the solar system, including the planets and the moon. The sun also emits light and heat, which is essential for the existence of life on Earth. The moon is a satellite of Earth and orbits around it, while the Oort cloud is a theoretical region of comets located far beyond the planets.

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  • 13. 

    Fluid pressure is always directed

    • Up.

    • Down.

    • Sideways.

    • In all direction.

    Correct Answer
    A. In all direction.
    Explanation
    Fluid pressure is exerted equally in all directions. This is due to the fact that fluid molecules are constantly in motion and collide with each other and the walls of the container. These collisions create a force that is distributed evenly in all directions, causing the fluid pressure to be exerted in all directions. Therefore, fluid pressure is not only directed up, down, or sideways, but in all directions.

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  • 14. 

    The type of energy transfer that takes place between objects in direct contact is

    • Conduction.

    • Convection.

    • Contraction.

    • Radiation.

    Correct Answer
    A. Conduction.
    Explanation
    Conduction is the type of energy transfer that occurs between objects in direct contact. When objects are in contact, heat energy is transferred from the hotter object to the colder object through direct collision of particles. This transfer of heat occurs due to the transfer of kinetic energy between the particles. Conduction is different from convection, which involves the transfer of heat through the movement of fluid or gas, and radiation, which involves the transfer of heat through electromagnetic waves. Contraction is not a type of energy transfer, but rather a term used to describe the decrease in size or volume of an object due to cooling or compression.

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  • 15. 

    Which of the following would NOT be attracted to a magnet?

    • Another magnet

    • Rubber band

    • Your chair

    • Paperclip

    Correct Answer
    A. Rubber band
    Explanation
    Rubber bands are not attracted to magnets because they are made of non-magnetic materials such as rubber or latex. Unlike metals, which contain magnetic properties, rubber bands do not have magnetic domains that can align with an external magnetic field. Therefore, they do not experience any magnetic attraction and are not affected by magnets.

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  • 16. 

    Matter is

    • Any visible solid that has mass.

    • Any liquid that takes up space and has mass.

    • Anything that takes up space and has mass.

    • Any liquid or solid that takes up space.

    Correct Answer
    A. Anything that takes up space and has mass.
    Explanation
    The correct answer is "anything that takes up space and has mass." This answer is the most comprehensive and inclusive definition of matter. It encompasses all forms of matter, including solids, liquids, and gases, as well as substances that may not be visible to the naked eye. By stating that matter is anything that takes up space and has mass, it accounts for the fundamental characteristics of matter, regardless of its physical state or visibility.

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  • 17. 

    Which would be the cooler shirt to wear on a hot day?

    • Maroon

    • Black

    • Red

    • White

    Correct Answer
    A. White
    Explanation
    White would be the cooler shirt to wear on a hot day because lighter colors reflect more sunlight and heat, while darker colors absorb and retain more heat. Therefore, wearing a white shirt would help to reflect the sun's rays and keep the body cooler compared to shirts in maroon, black, or red.

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  • 18. 

    A car travels a distance of 210 mi in exactly 4 h.  The driver calculates that he has traveled 52.5 mi/h.  Which of the following terms most nearly describes his calculation?

    • Average speed

    • Instantaneous speed

    • Instantaneous acceleration

    • Displacement

    Correct Answer
    A. Average speed
    Explanation
    The driver's calculation of 52.5 mi/h represents the average speed because it is the total distance traveled (210 mi) divided by the total time taken (4 h). Average speed is calculated by dividing the total distance by the total time, giving an overall measure of how fast an object is moving over a given period.

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  • 19. 

    Atomic reactions can produce an alternate source of energy called

    • Fossil fuels.

    • Solar energy.

    • Geothermal energy.

    • Nuclear energy.

    Correct Answer
    A. Nuclear energy.
    Explanation
    Atomic reactions refer to the process of nuclear reactions, which involve the splitting or combining of atomic nuclei. These reactions release a tremendous amount of energy, which can be harnessed and used as a source of power. This energy is known as nuclear energy. Fossil fuels, solar energy, and geothermal energy are all different sources of energy, but they are not directly produced by atomic reactions. Therefore, the correct answer is nuclear energy.

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  • 20. 

    Electricl energy can be changed into heat energy.

    • False

    • True

    Correct Answer
    A. True
    Explanation
    Electric energy can be converted into heat energy through the process of electrical resistance. When an electric current passes through a conductor, such as a wire, some of the electrical energy is transformed into heat energy due to the resistance encountered by the electrons. This phenomenon is utilized in various electrical appliances, such as heaters and electric stoves, where the electrical energy is intentionally converted into heat energy for specific purposes. Therefore, the given statement is true.

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  • 21. 

    What science deals most with energy and forces?

    • Biology

    • Physics

    • Botany

    • Agriculture

    Correct Answer
    A. Physics
    Explanation
    Physics is the correct answer because it is the branch of science that deals most with energy and forces. Physics studies the fundamental properties of matter and energy, as well as the interactions between them. It explores various phenomena, such as motion, gravity, electricity, magnetism, and thermodynamics, which are all related to energy and forces. Biology, botany, and agriculture, on the other hand, focus more on living organisms and their interactions with the environment, rather than the fundamental principles of energy and forces.

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  • 22. 

    If you add oil to water and shake the two liquids together, you will form a

    • Heterogeneous mixture.

    • Homogeneous mixture.

    • Miscible liquid.

    • Pure substance.

    Correct Answer
    A. Heterogeneous mixture.
    Explanation
    When oil is added to water and shaken together, it does not dissolve completely and forms separate layers. This indicates that the two substances do not mix evenly, resulting in a heterogeneous mixture. In a heterogeneous mixture, the components remain visibly distinct and can be easily separated.

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  • 23. 

    When energy is taken out of a gas, you get a ______.

    • Mess

    • Liquid

    • Solid

    • Gasoline

    Correct Answer
    A. Liquid
    Explanation
    When energy is taken out of a gas, the particles in the gas lose kinetic energy and slow down. As a result, they come closer together and the attractive forces between them become stronger. This causes the gas to condense and transform into a liquid state. Therefore, the correct answer is "liquid".

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  • 24. 

    When a chemical reaction occurs, atoms are never

    • Ionized.

    • Rearranged.

    • Destroyed.

    • Vaporized.

    Correct Answer
    A. Destroyed.
    Explanation
    In a chemical reaction, atoms are not ionized, rearranged, or vaporized. Instead, they undergo a rearrangement of their bonds to form new compounds. Atoms are not destroyed during a chemical reaction, as the law of conservation of mass states that matter cannot be created or destroyed, only transformed. Therefore, the correct answer is "destroyed."

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  • 25. 

    Which of the following materials is an example of a solid dessolved in another solid?

    • Smoke

    • Bronze

    • Mayonnaise

    • Ice

    Correct Answer
    A. Bronze
    Explanation
    Bronze is an alloy made by combining copper and tin, both of which are solid elements. In this case, one solid (copper) is dissolved in another solid (tin) to form bronze. Smoke, mayonnaise, and ice are not examples of a solid dissolved in another solid. Smoke is a mixture of solid particles and gases, mayonnaise is a mixture of solid and liquid ingredients, and ice is a solid form of water.

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  • 26. 

    Water attracts the ions of ionic compounds because water molecules are

    • Polar.

    • Ions.

    • Magnetic.

    • Nonpolar.

    Correct Answer
    A. Polar.
    Explanation
    Water attracts the ions of ionic compounds because water molecules are polar. This means that the oxygen atom in water has a slightly negative charge, while the hydrogen atoms have a slightly positive charge. This polarity allows water molecules to form hydrogen bonds with ions, which are charged particles. The positive end of the water molecule is attracted to negatively charged ions, while the negative end is attracted to positively charged ions. This attraction helps to dissolve ionic compounds in water, as the water molecules surround and separate the ions, allowing them to move freely in solution.

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  • 27. 

    The Richter scale expresses an earthquake's

    • Damage.

    • Location.

    • Duration.

    • Magnitude.

    Correct Answer
    A. Magnitude.
    Explanation
    The Richter scale is a logarithmic scale used to measure the magnitude or energy release of an earthquake. It does not directly measure the damage caused, the location, or the duration of the earthquake. Magnitude is a measure of the total energy released by an earthquake at its source, and it is widely used to compare and categorize earthquakes based on their strength.

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  • 28. 

    What would it take for matter to move from one state to another?

    • Energy

    • Matter

    • Help

    • This is impossible

    Correct Answer
    A. Energy
    Explanation
    Matter can change from one state to another through the input or removal of energy. This energy can cause the particles in the matter to move faster or slower, resulting in a change of state. For example, adding heat energy to a solid can cause it to melt and become a liquid, while removing heat energy from a liquid can cause it to freeze and become a solid. Therefore, energy is required for matter to transition between different states.

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  • 29. 

    The speed of sound depends on

    • The temperature of the medium.

    • The density of the medium.

    • How well the particles of the medium transfer energy.

    • All of the above.

    Correct Answer
    A. All of the above.
    Explanation
    The speed of sound depends on the temperature of the medium because as the temperature increases, the particles in the medium move faster, leading to an increase in the speed of sound. The speed of sound also depends on the density of the medium because denser mediums have particles that are closer together, allowing sound waves to travel more quickly. Additionally, how well the particles of the medium transfer energy affects the speed of sound as efficient energy transfer allows for faster sound propagation. Therefore, all of the given options affect the speed of sound.

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  • 30. 

    Which of the following can help prevent  a circuit from overloading?

    • A fuse

    • A switch

    • A circuit breaker

    • Both (A) and (C)

    Correct Answer
    A. Both (A) and (C)
    Explanation
    Both a fuse and a circuit breaker can help prevent a circuit from overloading. A fuse is a safety device that is designed to melt and break the circuit when the current exceeds a certain limit. This helps to protect the circuit and prevent damage or fire. Similarly, a circuit breaker is a switch that automatically interrupts the flow of current when it detects an overload or short circuit. It provides the same protection as a fuse but can be reset and reused. Therefore, both a fuse and a circuit breaker are effective in preventing circuit overloads.

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  • 31. 

    Which of the following describes what happens as the temperature of a gas in a balloon increases?

    • The volume of the gas increases and the speed of the particles in increases.

    • The speed of the particles decreases.

    • The volume decreases.

    • The pressure decreases.

    Correct Answer
    A. The volume of the gas increases and the speed of the particles in increases.
    Explanation
    As the temperature of a gas in a balloon increases, the volume of the gas increases. This is because the increase in temperature causes the gas particles to move faster and collide with the walls of the balloon more frequently, thus expanding the volume of the gas. Additionally, the speed of the particles in the gas also increases as the temperature rises. This is due to the increase in kinetic energy of the particles, resulting in faster movement. Therefore, both the volume of the gas and the speed of the particles increase as the temperature of the gas in a balloon increases.

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  • 32. 

    Materials that can flow to fit their containers include

    • Gases.

    • Liquids.

    • Both gases and liquids.

    • Neither gases or liquids.

    Correct Answer
    A. Both gases and liquids.
    Explanation
    Materials that can flow to fit their containers refer to substances that have the ability to take the shape of their container. Gases and liquids are the only two states of matter that possess this property. Gases have no fixed shape or volume and can completely fill any container they are placed in, while liquids have a fixed volume but can take the shape of their container. Therefore, both gases and liquids can flow and fit their containers.

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  • 33. 

    Which of the following is not true of recycling?

    • Recycling does not affect the amount of waste that ends up in a landfill.

    • Recycling reduces litter.

    • Recycling reduces energy usage.

    • Recycled materials can be used to make other products.

    Correct Answer
    A. Recycling does not affect the amount of waste that ends up in a landfill.
    Explanation
    Recycling is a process that involves converting waste materials into reusable materials to reduce the amount of waste that ends up in landfills. Therefore, the statement "Recycling does not affect the amount of waste that ends up in a landfill" is not true. Recycling actually helps in diverting waste from landfills by reusing and repurposing materials, which in turn reduces the amount of waste that gets deposited in landfills.

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  • 34. 

    ___________ is the field around a magnet.  You can not see it, but you can see its effects.

    • Spark field

    • Baseball field

    • Attraction field

    • Magnetic field

    Correct Answer
    A. Magnetic field
    Explanation
    A magnetic field is the region around a magnet where its influence or effects can be observed. Although it is invisible to the naked eye, its presence can be detected through the attraction or repulsion it exerts on other magnetic objects. This field is responsible for the magnetic force that acts on nearby objects and is a fundamental concept in magnetism.

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  • 35. 

    Which statement is NOT true of Bohr's model of the atom?

    • The nucleus can be compared to the sun.

    • Electrons orbit the nucleus.

    • An electron's path is not known exactly.

    • Electrons exist in energy levels.

    Correct Answer
    A. An electron's path is not known exactly.
    Explanation
    Bohr's model of the atom states that electrons orbit the nucleus in specific energy levels, similar to the way planets orbit the sun. This model also suggests that an electron's path cannot be known exactly, as it is described by a probability distribution. Therefore, the statement "An electron's path is not known exactly" is true of Bohr's model of the atom.

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  • 36. 

    Which statement about atoms of elements in the same group of the periodic table is true?

    • They have the same number of protons.

    • They have the same mass number.

    • They have similar chemical properties.

    • They have the same number of total electrons.

    Correct Answer
    A. They have similar chemical properties.
    Explanation
    Atoms of elements in the same group of the periodic table have similar chemical properties because they have the same number of valence electrons. The valence electrons determine the reactivity and chemical behavior of an atom. Therefore, elements in the same group have similar chemical properties as they have the same number of valence electrons, which leads to similar chemical reactions and bonding patterns.

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  • 37. 

    In an exothermic reaction,

    • Energy is conserved.

    • The formation of bonds in the product releases more energy than is required to break the bonds in the reactants.

    • Energy is released as bonds form.

    • All of the above.

    Correct Answer
    A. All of the above.
    Explanation
    In an exothermic reaction, energy is conserved because it is neither created nor destroyed, but rather transferred from the reactants to the surroundings. Additionally, the formation of bonds in the product releases more energy than is required to break the bonds in the reactants, resulting in a net release of energy. This energy is released as bonds form, further contributing to the overall exothermic nature of the reaction. Therefore, all of the statements mentioned in the options are correct explanations for an exothermic reaction.

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  • 38. 

    A light-year is a unit of

    • Time.

    • Distance.

    • Mass.

    • Temperature.

    Correct Answer
    A. Distance.
    Explanation
    A light-year is a unit of distance. It is the distance that light travels in one year in a vacuum. Since light travels at a finite speed, it takes time to cover large distances. Therefore, a light-year is commonly used to measure astronomical distances, such as the distance between stars or galaxies.

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  • 39. 

    Which of the following describes a solid?

    • Packed loosely together

    • Flow and slide past each other

    • Packed tightly together in straight rows

    • Used in flourescent lights

    Correct Answer
    A. Packed tightly together in straight rows
    Explanation
    A solid is a state of matter where the particles are packed tightly together in straight rows. In a solid, the particles are closely bonded and have a fixed shape and volume. The arrangement of particles in a solid is highly organized and they vibrate in place. This is in contrast to liquids, where the particles flow and slide past each other, and gases, where the particles are packed loosely together and move freely. The option "used in fluorescent lights" is irrelevant to describing a solid.

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  • 40. 

    Which of the following is an insulator?

    • Iron

    • Plastic

    • Steel

    • Metal

    Correct Answer
    A. Plastic
    Explanation
    Plastic is an insulator because it does not conduct electricity. Unlike metals such as iron and steel, which are good conductors, plastic has high resistance to the flow of electric current. This is due to the nature of its molecular structure, which does not allow the easy movement of electrons. Therefore, plastic is commonly used as an insulating material in various electrical applications to prevent the flow of electricity and protect against electrical shocks or short circuits.

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  • 41. 

    When energy is added to a solid, you get a ______.

    • Plasma

    • Faster solid

    • Liquid

    • Gas

    Correct Answer
    A. Liquid
    Explanation
    When energy is added to a solid, the particles within the solid gain kinetic energy and start vibrating more vigorously. This increased vibration breaks the intermolecular forces holding the particles together, causing the solid to melt and transform into a liquid state. Therefore, the correct answer is "liquid".

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  • 42. 

    When a heavy nucleus decays, it may emit

    • Alpha particles.

    • Beta particles.

    • Gamma rays.

    • All of the above.

    Correct Answer
    A. All of the above.
    Explanation
    When a heavy nucleus decays, it can emit different types of particles and radiation. Alpha particles are made up of two protons and two neutrons, beta particles are either electrons or positrons, and gamma rays are high-energy photons. Therefore, it is possible for a heavy nucleus to emit alpha particles, beta particles, and gamma rays during decay, making the correct answer "All of the above."

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  • 43. 

    Most calendars are based on

    • Earth's orbit of the sun.

    • Moon's orbit of the Earth.

    • Jupiter's orbit of the sun.

    • Venus' position in the sky.

    Correct Answer
    A. Earth's orbit of the sun.
    Explanation
    Most calendars are based on Earth's orbit of the sun because the concept of a year is defined by the time it takes for the Earth to complete one orbit around the sun. This period, known as a tropical year, is approximately 365.24 days long. The Earth's orbit determines the changing seasons and the length of a year, making it the most logical basis for calendars. The moon's orbit, Jupiter's orbit, and Venus' position in the sky do not have a direct relationship with the concept of a year.

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  • 44. 

    Underground caves in limestone can be formed by a reaction including

    • Sulfuric acid.

    • Hematite.

    • Ice crystals.

    • Carbonic acid.

    Correct Answer
    A. Sulfuric acid.
    Explanation
    Underground caves in limestone can be formed by a reaction involving sulfuric acid. This is because sulfuric acid is a strong acid that can dissolve limestone, which is primarily composed of calcium carbonate. As the acid reacts with the limestone over time, it gradually wears away the rock and creates cavities and passages, eventually forming underground caves. Hematite, ice crystals, and carbonic acid do not have the same corrosive properties as sulfuric acid and therefore cannot create underground caves in limestone.

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  • 45. 

    Newton's first law of motion states tat an object

    • At rest remains at rest unless it experiences an unbalanced force.

    • In motion maintains its velocity unless it experiences an unbalanced force.

    • Will tend to maintain its motion unless it experiences an unbalanced force.

    • All of the above.

    Correct Answer
    A. All of the above.
    Explanation
    The correct answer is "All of the above." Newton's first law of motion, also known as the law of inertia, states that an object at rest will remain at rest unless acted upon by an unbalanced force. Similarly, an object in motion will continue to move at a constant velocity unless acted upon by an unbalanced force. Therefore, all three statements in the answer are correct and describe the different aspects of Newton's first law of motion.

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  • 46. 

    Fossil fuels are made mostly of what elements?

    • Carbon and hydrogen

    • Carbon and calcium

    • Calcium and hydrogen

    • Potassium and chlorine

    Correct Answer
    A. Carbon and hydrogen
    Explanation
    Fossil fuels are primarily made up of carbon and hydrogen. This is because fossil fuels are formed from the remains of ancient plants and animals that have been subjected to heat and pressure over millions of years. Carbon is a key component of organic matter, such as plants and animals, while hydrogen is present in organic compounds. Therefore, it is logical that fossil fuels, which are derived from organic matter, would contain high amounts of carbon and hydrogen.

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  • 47. 

    Winds in the Northern Hemisphere curve clockwise because of

    • CO2.

    • Climate.

    • The Coriolis Effect.

    • CFCs.

    Correct Answer
    A. The Coriolis Effect.
    Explanation
    The Coriolis Effect is responsible for the clockwise curvature of winds in the Northern Hemisphere. This effect is caused by the rotation of the Earth, which causes moving objects, such as air masses, to be deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. As a result, winds in the Northern Hemisphere appear to curve clockwise. CO2, climate, and CFCs are not directly related to the direction of wind curvature in the Northern Hemisphere.

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  • 48. 

    The solar system is about ___________ years old.

    • 0.5 million

    • 0.5 billion

    • 4.6 million

    • 4.6 billion

    Correct Answer
    A. 4.6 billion
    Explanation
    The correct answer is 4.6 billion because scientists estimate that the solar system formed around 4.6 billion years ago. This age is determined through various methods, including the study of meteorites and the age of the oldest rocks on Earth. By analyzing these samples, scientists can calculate the age of the solar system and its components, such as the Sun, planets, and moons.

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  • 49. 

    __________ rock is formed from magma.

    • Igneous

    • Metamorphic

    • Sedimentary

    • Schist

    Correct Answer
    A. Igneous
    Explanation
    Igneous rock is formed from magma, which is molten rock that is found beneath the Earth's surface. When magma cools and solidifies, it forms igneous rock. This type of rock can be found in various forms, such as granite, basalt, and obsidian. Igneous rocks are known for their crystalline texture and can contain minerals like quartz, feldspar, and mica. They are often found in areas with volcanic activity or where magma has intruded into the Earth's crust.

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  • Sep 06, 2024
    Quiz Edited by
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  • Aug 16, 2014
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    MuscleShoals
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