1.
Solar wind is associated with?
Correct Answer
D. All of the above
Explanation
Solar wind is a stream of charged particles, mainly protons and electrons, that are ejected from the upper atmosphere of the sun. These particles can interact with the Earth's magnetic field, causing the phenomenon known as the aurora borealis or northern lights. Solar wind can also interact with the tail of a comet, causing it to glow and become visible. Additionally, solar wind can interfere with satellite communications and disrupt their signals. Therefore, all of the given options - aurora borealis, tail of the comet, and satellite interference - are associated with solar wind.
2.
In the case of, PV=nRT, if volume stays constant and temperature rises, what happens?
Correct Answer
C. Pressure Increases
Explanation
They must stay equal to each other. If you do it to one side you have to do it to the other.
3.
Does density and mass determine gravity?
Correct Answer
B. False
Explanation
Distance and mass do.
4.
Heating water causes?
Correct Answer
B. Evaporation
Explanation
Heating water causes evaporation because the increase in temperature provides energy to the water molecules, causing them to move faster and break the intermolecular bonds holding them together. As a result, the water molecules gain enough energy to escape from the liquid phase and enter the gaseous phase, forming water vapor.
5.
The Ideal Gas Law is PV = nRT?
Correct Answer
A. True
Explanation
The Ideal Gas Law, PV = nRT, is a mathematical equation that describes the behavior of an ideal gas. It states that the pressure (P) of a gas is directly proportional to its volume (V), the number of moles (n) of gas present, and the temperature (T) in Kelvin. The gas constant (R) is a proportionality constant. This equation is widely used in the field of thermodynamics and helps calculate various properties of gases, such as pressure, volume, and temperature, under different conditions. Therefore, the statement "The Ideal Gas Law is PV = nRT" is true.
6.
Seasonal difference on the Earth are caused by
Correct Answer
D. Tilt and Curved Surface
Explanation
The seasonal differences on Earth are caused by the tilt of the Earth's axis and the curved surface of the Earth. The Earth's axis is tilted at an angle of about 23.5 degrees relative to its orbit around the Sun. This tilt causes different parts of the Earth to receive varying amounts of sunlight throughout the year, leading to the changing seasons. Additionally, the curved shape of the Earth means that different latitudes receive sunlight at different angles, further contributing to the seasonal variations.
7.
What creates clouds?
Correct Answer
C. Condensation
Explanation
Clouds are created through the process of condensation. When warm air rises and cools, it reaches its dew point, which is the temperature at which the air becomes saturated with water vapor. As the air cools, the water vapor condenses into tiny water droplets or ice crystals, forming clouds. These droplets or crystals then come together and become visible as clouds in the atmosphere. Therefore, condensation is the correct answer as it accurately describes the process of cloud formation.
8.
What is the difference between Jovian and terrestrial planets?
Correct Answer
B. Gas giants vs. Small rocky
Explanation
Jovian planets, also known as gas giants, are much larger in size compared to terrestrial planets, which are small and rocky. Jovian planets are composed mainly of gases, while terrestrial planets are made up of solid materials. Additionally, Jovian planets often have rings around them, whereas terrestrial planets do not have rings.
9.
Rotation deals with orbitting around the sun?
Correct Answer
B. False
Explanation
Rotation refers to the spinning of an object around its own axis, while orbiting refers to the movement of an object around another object, such as a planet orbiting around the sun. Therefore, rotation does not deal with orbiting around the sun.
10.
Revolution deals with the spin on an axis?
Correct Answer
B. False
Explanation
This statement is false because revolution does not deal with the spin on an axis. Revolution refers to the movement of an object around another object or point, such as the Earth revolving around the Sun. The spin on an axis is called rotation.
11.
There are three types of planets which is NOT one?
Correct Answer
A. Stars
Explanation
The question asks for the type of planet that is NOT one of the three mentioned. The three types mentioned are Dwarfs, Jovian, and Terrestrial. The correct answer is "Stars" because stars are not a type of planet.
12.
The Earth's rotation takes _____?
Correct Answer
D. 24 Hours
Explanation
The Earth's rotation takes 24 hours because it completes one full rotation on its axis in that amount of time. This rotation is what causes the cycle of day and night on Earth.
13.
The planet that is closest to the Sun is?
Correct Answer
D. Mercury
Explanation
Mercury is the correct answer because it is the planet closest to the Sun in our solar system. It orbits the Sun at an average distance of about 36 million miles, which is much closer than any other planet.
14.
_______ is Earth's twin.
Correct Answer
B. Venus
Explanation
Venus is often referred to as Earth's twin because it is similar in size and composition. Both planets are rocky and have a similar mass and density. Additionally, Venus is the closest planet to Earth in terms of distance and has a similar gravity. However, Venus has a much harsher environment with extreme temperatures and a thick atmosphere composed mainly of carbon dioxide, making it inhospitable for life.
15.
There are three spheres in Earth, the atomsphere, solid earth, and hydrosphre, which is alos considered a sphere?
Correct Answer
D. Both Geosphere and Biosphere
Explanation
The statement mentions that there are three spheres in Earth: the atmosphere, solid earth, and hydrosphere. It then asks which sphere is also considered a sphere. The correct answer is "Both Geosphere and Biosphere." The geosphere refers to the solid earth, including the rocks, minerals, and landforms. The biosphere refers to all living organisms on Earth and their interactions with the other spheres. Both the geosphere and biosphere are considered spheres because they are distinct components of the Earth system.
16.
Which sphere deals with trees?
Correct Answer
B. Biosphere
Explanation
The biosphere is the sphere that deals with trees. The biosphere refers to the part of the Earth where living organisms, including trees, exist. It includes all ecosystems and habitats on Earth, including forests where trees are found. The biosphere encompasses all living organisms and their interactions with the environment, making it the sphere that specifically deals with trees.
17.
The Scientfic Method process is?
Correct Answer
C. Observation => Question => Speculation
Explanation
The scientific method is a systematic approach used to investigate and understand phenomena in the natural world. It begins with making observations about a particular phenomenon or problem. These observations then lead to formulating a question or a hypothesis to explain the observed phenomenon. Finally, based on the question or hypothesis, scientists make speculations or predictions and design experiments to test them. Therefore, the correct sequence in the scientific method process is observation, question, and speculation.
18.
What is the difference between theory vs. hypothesis
Correct Answer
Well supported hypothesis vs. educated guess
Explanation
A theory is a well-supported explanation of a phenomenon that has been extensively tested and supported by evidence. It is based on a large body of data and is widely accepted within the scientific community. On the other hand, a hypothesis is an educated guess or a proposed explanation for a phenomenon that is yet to be tested or supported by evidence. A hypothesis is more tentative and is used as a starting point for scientific investigation. So, the main difference between theory and hypothesis lies in the level of supporting evidence and the stage of scientific investigation they represent.
19.
Three fourths of our planet is covered by water?
Correct Answer
A. True
Explanation
The statement is true because approximately 71% of the Earth's surface is covered by water, which is more than three-fourths. This includes oceans, seas, lakes, rivers, and other bodies of water.
20.
What is the cycle of the spheres?
Correct Answer
Hydrosphere => Geosphere => Biosphere => Atmosphere then back to Hydrosphere
Explanation
The cycle of the spheres refers to the interconnectedness and movement of the Earth's different spheres - hydrosphere, geosphere, biosphere, and atmosphere. The cycle starts with the hydrosphere, which includes all the water on Earth, flowing into the geosphere, which consists of the solid Earth materials. From there, it moves into the biosphere, where living organisms exist and interact with their environment. Finally, it enters the atmosphere, the layer of gases surrounding the Earth. The cycle then completes as water from the atmosphere returns to the hydrosphere through precipitation, completing the cycle of the spheres.
21.
Can a theory prove anything?
Correct Answer
B. False
Explanation
A theory can only disprove
22.
Scientists must work to reduce/eliminate subjectivity?
Correct Answer
A. True
Explanation
Scientists must work to reduce or eliminate subjectivity because subjectivity can introduce bias and personal opinions into scientific research, which can compromise the objectivity and validity of the findings. By striving for objectivity, scientists can ensure that their research is based on reliable evidence and can be replicated and verified by others. This is essential for the advancement of knowledge and the development of trustworthy scientific theories and explanations. Additionally, reducing subjectivity can also help scientists make more accurate predictions and informed decisions based on evidence rather than personal biases.
23.
Which of the following are disciplines of Earth Science?
Correct Answer
E. All of the above
Explanation
The correct answer is "All of the above". This means that all of the disciplines listed - Astronomy, Oceanography, Meteorology, and Geology - are considered to be part of Earth Science. Earth Science is the study of the Earth and its processes, including the atmosphere, oceans, and geology. Astronomy is included because it involves the study of celestial objects and their interactions with the Earth. Oceanography focuses on the study of the oceans and their physical and biological aspects. Meteorology is the study of the atmosphere and weather patterns. Geology is the study of the Earth's solid materials, such as rocks and minerals.
24.
Matter is ___________________________________________________________.
Correct Answer
anything that has mass and takes up space
Explanation
Matter refers to anything that has mass and occupies space. This means that any physical object or substance, whether it is solid, liquid, or gas, is considered matter. The concept of matter is fundamental in understanding the properties and behavior of the physical world. It encompasses everything from the tiniest particles, such as atoms and molecules, to larger objects like planets and stars. The definition of matter helps us differentiate between what is physical and what is not, allowing us to study and comprehend the various forms and interactions of substances in the universe.
25.
The three atomic structures are?
Correct Answer
Protons, Neutrons and Electorons
Explanation
The correct answer is Protons, Neutrons, and Electrons. These are the three atomic structures that make up an atom. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge. Protons and neutrons are located in the nucleus of the atom, while electrons orbit around the nucleus in energy levels or shells. These three particles are essential in determining the properties and behavior of an atom.
26.
The atomic number is found by?
Correct Answer
It is equal to the protons
Explanation
The atomic number of an element is equal to the number of protons in the nucleus of an atom. This is because the atomic number defines the identity of an element and differentiates one element from another. Protons carry a positive charge and are found in the nucleus of an atom, while neutrons carry no charge. Therefore, the atomic number is equal to the number of protons in an atom.
27.
The mass number is found by?
Correct Answer
The total of protons and neutrons
Explanation
The mass number of an atom is determined by adding together the number of protons and neutrons in its nucleus. Protons have a positive charge and neutrons have no charge, but both contribute to the overall mass of the atom. Therefore, the correct answer is that the mass number is found by adding the total number of protons and neutrons.
28.
Which of the follwing is found in the nucleus, contributes to the mass and has a positive charge?
Correct Answer
A. Protons
Explanation
Protons are found in the nucleus of an atom, contribute to the mass of the atom, and have a positive charge. Neutrons also contribute to the mass of the atom but have no charge, while electrons are found outside the nucleus and have a negative charge. Therefore, the correct answer is protons.
29.
Which the following orbits the nucelus, negative charge, very little mass, may change orbits and atoms.
Correct Answer
C. Electrons
Explanation
Electrons orbit the nucleus of an atom. They carry a negative charge and have very little mass compared to protons and neutrons. Electrons are located in specific energy levels or shells around the nucleus and can move between these levels, changing their orbits.
30.
Which of the following is found in the nucleus, contribute to mass and has no charge.
Correct Answer
B. Neutrons
Explanation
Neutrons are found in the nucleus, contribute to mass, and have no charge. They are subatomic particles that are about the same size as protons but have no electrical charge. Neutrons help to stabilize the nucleus and are responsible for holding the protons together through the strong nuclear force.
31.
The atomic number identifies element
Correct Answer
A. True
Explanation
The atomic number is a unique identifier for each element on the periodic table. It represents the number of protons in the nucleus of an atom, which determines the element's chemical properties. Therefore, the statement that the atomic number identifies an element is true.
32.
Can electrons csn orbit more than one atom and can leave one atom
Correct Answer
A. True
Explanation
Electrons can indeed orbit more than one atom and can also leave one atom to join another. This is known as electron delocalization or electron mobility. In certain molecules or compounds, electrons are not confined to a single atom but can move freely between multiple atoms. This phenomenon is crucial in various chemical reactions and plays a significant role in the properties and behavior of substances.
33.
What are the two types of energy?
Correct Answer
Potential and Kinetic
Explanation
Potential and Kinetic energy are the two main types of energy. Potential energy is the energy that an object possesses due to its position or condition, such as the energy stored in a stretched spring or an object at a height. Kinetic energy, on the other hand, is the energy of motion. It is the energy possessed by an object due to its motion, such as a moving car or a person running. These two types of energy are fundamental in understanding and explaining various phenomena in the physical world.
34.
Which energy is releaseed when body is set in motion.
Correct Answer
A. Potential and Kinetic
Explanation
When a body is set in motion, both potential and kinetic energy are released. Potential energy is the energy that an object possesses due to its position or condition, and it is converted into kinetic energy when the object starts moving. Kinetic energy is the energy of motion, and it is directly related to the mass and velocity of the object. Therefore, when a body is set in motion, the potential energy is converted into kinetic energy, resulting in the release of both types of energy.
35.
Which Law deals with all things ten towards disorder
Correct Answer
B. 2nd Law of Thermodynamics
Explanation
The 2nd Law of Thermodynamics states that the entropy, or disorder, of a closed system always increases over time. This law explains why things tend to move towards disorder rather than order. The 1st Law of Thermodynamics, on the other hand, deals with the conservation of energy and does not specifically address the concept of disorder. Therefore, the correct answer is the 2nd Law of Thermodynamics.
36.
Which shift "squishes" waves?
Correct Answer
A. Blue
Explanation
Blue shift is the correct answer because it refers to the phenomenon in which the wavelength of light or other electromagnetic radiation is shortened, causing the waves to appear "squished" or compressed. This shift occurs when an object emitting the waves is moving towards the observer, causing the waves to be compressed and appear bluer in color.
37.
Which shift is approaching and is at a higher frequency?
Correct Answer
A. Blue
Explanation
Blue light has a higher frequency than red and purple light. The frequency of light is directly proportional to its energy. Blue light has a shorter wavelength and higher energy compared to red and purple light. Therefore, blue light is approaching and is at a higher frequency.
38.
In the case of a bomb dropping from the sky what shift best descirbes what happens?
Correct Answer
B. Red
Explanation
When a bomb drops from the sky, it undergoes a shift in color. The most likely shift that occurs is a change from the bomb's original color to the color red. This shift is due to the explosion and combustion that takes place when the bomb detonates. The intense heat and energy released during the explosion cause the bomb to emit a red glow, hence the shift to the color red.
39.
Red Shift is when a object is receding and "stretches out" waves?
Correct Answer
A. True
Explanation
Red Shift refers to the phenomenon in which light from distant objects appears to be shifted towards longer wavelengths, towards the red end of the spectrum. This occurs because the object emitting the light is moving away from the observer, causing the waves to "stretch out" or become longer. This is a key concept in astronomy and is used to study the expansion of the universe and the movement of galaxies.
40.
Which is the measurement of distance (where two lines of sight meet)?
Correct Answer
B. Triangulation
Explanation
Triangulation is the measurement of distance where two lines of sight meet. It involves using the angles formed by a baseline and the lines of sight to calculate the distance to a point. This method is commonly used in surveying and navigation to determine the location of objects or to create accurate maps.
41.
Sunspot's are darken, hotter spots on Sun's surface with strong magnetic fields?
Correct Answer
B. False
Explanation
They are darken, cooler spots
42.
Objects that are moving away in space are moving at ______ the speed of light.
Correct Answer
A. 1/10th
Explanation
Objects that are moving away in space are moving at a fraction of the speed of light. The correct answer is 1/10th, which means that they are moving at one-tenth of the speed of light. This suggests that the objects are receding from an observer at a relatively slower pace compared to the speed of light.
43.
The process of a star is Nebulae => collapse => shrinks and rotates => main sequence star => fuel gone => enormous red giant => white dwarf or black hole
Correct Answer
A. True
Explanation
The given answer is true. The explanation states the process of a star, starting from a nebulae, which is a cloud of gas and dust. The nebulae collapses under its own gravity and shrinks, causing it to rotate. This leads to the formation of a main sequence star, which is the stage where a star spends most of its life. Eventually, the fuel of the star is depleted, causing it to expand into an enormous red giant. Depending on the mass of the star, it will either become a white dwarf or collapse further into a black hole.
44.
Which bond is when an electron is donated to the other?
Correct Answer
B. Ionic
Explanation
Ionic bond is when an electron is donated to the other. In an ionic bond, one atom donates an electron to another atom, resulting in the formation of positively and negatively charged ions. The attraction between these opposite charges holds the atoms together in a bond. This type of bond typically occurs between a metal and a non-metal, where the metal atom donates an electron to the non-metal atom.
45.
Which bond is when an electron obrtis more then one nucleus?
Correct Answer
B. Covalent
Explanation
In a covalent bond, electrons are shared between two or more nuclei. This means that the electron orbits multiple nuclei, rather than being completely transferred to one nucleus as in an ionic bond. Therefore, the correct answer is Covalent.
46.
Weather has to deal with long term atmosphere.
Correct Answer
B. False
Explanation
The explanation for the given correct answer is that weather actually deals with short-term atmospheric conditions, such as temperature, humidity, precipitation, and wind, that can change from day to day or even hour to hour. Long-term atmospheric conditions, on the other hand, are related to climate, which refers to the average weather patterns over a longer period of time, typically 30 years or more. Therefore, the statement that weather has to deal with long-term atmosphere is false.
47.
Which one of the following deals with short term atmosphere?
Correct Answer
A. Weather
Explanation
Weather deals with short term changes in the atmosphere, such as temperature, precipitation, wind speed, and cloud cover, that occur over a period of hours or days. It is the day-to-day state of the atmosphere and can vary greatly from one location to another. Climate, on the other hand, refers to the long-term patterns and averages of weather conditions in a particular region over a period of years. Seasons are the result of the tilt of the Earth's axis and the resulting changes in the amount of sunlight received by different parts of the planet throughout the year.
48.
How are mass and energy related?
Correct Answer
E=MC^2
Explanation
The equation E=MC^2 represents the relationship between mass and energy. It states that energy (E) is equal to the mass (M) multiplied by the speed of light (C) squared. This equation, derived from Einstein's theory of relativity, shows that mass and energy are interchangeable and can be converted into one another. It implies that even a small amount of mass can contain a large amount of energy, and vice versa.
49.
What is Electron Radiation?
Correct Answer
B. Spectrum of energy associated with particles of light, electric and magnetic fields
Explanation
Electron radiation refers to the spectrum of energy associated with particles of light, electric, and magnetic fields. This means that it encompasses the range of energy levels and frequencies that electrons can emit or absorb when interacting with light, electric fields, or magnetic fields. It is important to understand this concept in order to comprehend the behavior and properties of electrons in various scientific and technological applications.
50.
Which of the following is how photons act separately?
Correct Answer
B. Particle Nature
Explanation
Photons are particles of light that exhibit particle nature. This means that they can behave as discrete packets of energy, with properties like momentum and energy. They can also interact with matter as individual particles, for example, in the photoelectric effect. This behavior is different from the wave nature of photons, where they exhibit characteristics like interference and diffraction. Therefore, the correct answer is "Particle Nature."