Science - Benchmark III Review (18)

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  • 1/18 Questions
    What is the hardest mineral on earth? - ProProfs

    What is the hardest mineral on earth?

    • Gemstone
    • Diamond
    • Rock
    • Granite
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Science - Benchmark III Review (18) - Quiz
About This Quiz

This quiz evaluates knowledge in physical sciences, focusing on physics concepts such as energy types, mineral hardness, and force measurement.

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  • 2. 
    What type of energy is used when the man

    What type of energy is used when the man "chews" the food?

    • Mechanical energy

    • Electrical energy

    • Nuclear energy

    • Light energy

    Correct Answer
    A. Mechanical energy
    Explanation
    When a man chews food, he uses his muscles to break down the food into smaller pieces. This action requires the conversion of chemical energy stored in the food into mechanical energy, which is the energy associated with the movement and motion of objects. Therefore, the correct answer is mechanical energy.

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  • 3. 
    What happens to the water on the sidewalk on a hot day? - ProProfs

    What happens to the water on the sidewalk on a hot day?

    • Sublimation

    • Condensation

    • Evaporation

    • Disappears

    Correct Answer
    A. Evaporation
    Explanation
    On a hot day, the water on the sidewalk undergoes evaporation. Evaporation is the process in which a liquid, in this case, water, changes into a gas, usually due to an increase in temperature. The heat from the sun causes the water molecules to gain energy and become more active, eventually turning into water vapor. This water vapor then rises into the air, causing the water on the sidewalk to disappear.

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  • 4. 
     What type of change is it when an ice cube melts? - ProProfs

     What type of change is it when an ice cube melts?

    • Chemical change

    • Physical change

    • Mechanical change

    • Weird change

    Correct Answer
    A. Physical change
    Explanation
    When an ice cube melts, it undergoes a physical change. This is because the change in state from solid to liquid does not involve the formation or breaking of chemical bonds. The molecules in the ice cube are still the same, but they gain enough energy to overcome the forces holding them together in a solid structure, resulting in the transformation into a liquid state. Therefore, it is considered a physical change rather than a chemical change.

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  • 5. 
    What remains the same on the moon and the earth? - ProProfs

    What remains the same on the moon and the earth?

    • Weight

    • Mass

    • Properties

    • Gravity

    Correct Answer
    A. Mass
    Explanation
    Mass remains the same on the moon and the earth. Mass is a measure of the amount of matter an object contains, and it is a fundamental property of an object that does not change regardless of its location. Therefore, an object will have the same mass on both the moon and the earth, regardless of the difference in their gravitational forces.

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  • 6. 

    What  type of change is occuring to the toast in a toaster?

    • Physical change

    • Chemical change

    • Reaction

    • Net force

    Correct Answer
    A. Chemical change
    Explanation
    The correct answer is chemical change because when toast is being made in a toaster, the heat causes a chemical reaction called the Maillard reaction. This reaction occurs between the amino acids and sugars present in the bread, resulting in the browning and formation of new compounds that give the toast its distinct flavor and texture. This transformation is a chemical change because the composition of the bread is altered at the molecular level.

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  • 7. 
    What type of energy is the mouse producing? - ProProfs

    What type of energy is the mouse producing?

    • Potential energy

    • Kinetic energy

    • Chemical energy

    • Mechanical energy

    Correct Answer
    A. Kinetic energy
    Explanation
    The mouse is producing kinetic energy. Kinetic energy is the energy possessed by an object due to its motion. In this case, the mouse is moving, so it has kinetic energy. Potential energy refers to stored energy, chemical energy is the energy stored in chemical bonds, and mechanical energy is the sum of potential and kinetic energy. However, based on the information given, the mouse's motion indicates that it is producing kinetic energy.

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  • 8. 
    What slows down the small object opposed to the elephant? - ProProfs

    What slows down the small object opposed to the elephant?

    • Inertai

    • Air resistance

    • Gravitry

    • Vacuum

    Correct Answer
    A. Air resistance
    Explanation
    Air resistance is the correct answer because it is a force that opposes the motion of objects moving through the air. When a small object is moving, it experiences more air resistance compared to an elephant due to its smaller surface area. This increased air resistance slows down the small object more than it does the elephant, which has a larger surface area and is therefore affected less by air resistance.

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  • 9. 
    What type of mixture is it when the snow settles to the bottom of the snow globe? - ProProfs

    What type of mixture is it when the snow settles to the bottom of the snow globe?

    • Colloid

    • Suspension

    Correct Answer
    A. Suspension
    Explanation
    When the snow settles to the bottom of the snow globe, it forms a suspension. A suspension is a type of mixture in which solid particles are dispersed in a liquid or gas but are large enough to settle out over time. In this case, the snow particles are suspended in the liquid inside the snow globe, but eventually settle to the bottom due to gravity. This settling behavior is characteristic of a suspension.

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  • 10. 
    What is the

    What is the "heaviness" of gold that makes it sink to the bottom of the pan?

    • Volume

    • Mass

    • Density

    • Weight

    Correct Answer
    A. Density
    Explanation
    The correct answer is density. Density is the measure of how much mass is contained in a given volume. Gold is denser than water, which is why it sinks to the bottom of the pan.

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  • 11. 
    What type of molecule is the following? - ProProfs

    What type of molecule is the following?

    • Hydrogen

    • Helium

    • Water

    • Oxygen

    Correct Answer
    A. Water
    Explanation
    The correct answer is water because it is a molecule composed of two hydrogen atoms and one oxygen atom. Water molecules are held together by covalent bonds, forming a bent or V-shaped structure. It is a polar molecule, meaning it has a slightly positive charge on the hydrogen atoms and a slightly negative charge on the oxygen atom. Water is essential for life and has unique properties, such as high boiling and melting points, which are a result of its hydrogen bonding.

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  • 12. 

    Which place is the "mass" the same (not wieght)?

    • Saturn

    • Earth

    • Moon

    • Mass is the same in all the above locations.

    Correct Answer
    A. Mass is the same in all the above locations.
    Explanation
    Mass is a measure of the amount of matter in an object and is constant regardless of the location. Weight, on the other hand, depends on the gravitational force acting on an object and can vary depending on the strength of gravity. Since the question specifically asks about mass and not weight, the correct answer is that mass is the same in all the given locations.

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  • 13. 
    What type of instrument is used to measure force? - ProProfs

    What type of instrument is used to measure force?

    • Thermometer

    • Triple beam balance

    • Spring scale

    • Meter stick

    Correct Answer
    A. Spring scale
    Explanation
    A spring scale is used to measure force. It consists of a spring attached to a hook on one end and a pointer or a scale on the other end. When a force is applied to the hook, the spring stretches or compresses, and the scale or pointer indicates the magnitude of the force. This allows for the measurement of forces such as weight or tension. A thermometer measures temperature, a triple beam balance measures mass, and a meter stick measures length.

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  • 14. 
    What is the process called when an acid and a base combines to form salt and water? - ProProfs

    What is the process called when an acid and a base combines to form salt and water?

    • Salinity

    • Water cycle

    • Neutralization process

    • Life cycle

    Correct Answer
    A. Neutralization process
    Explanation
    Neutralization process is the correct answer because it accurately describes the chemical reaction that occurs when an acid and a base combine to form salt and water. During neutralization, the hydrogen ions from the acid react with the hydroxide ions from the base, resulting in the formation of water and a salt compound. This process helps to neutralize the acidic or basic properties of the substances involved, leading to a more balanced and less corrosive solution.

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  • 15. 
    What type of light bulb has a filament instead of argon gas? - ProProfs

    What type of light bulb has a filament instead of argon gas?

    • Fluroescent bulb

    • Firefly light

    • Incadescent bulb

    • Neon light

    Correct Answer
    A. Incadescent bulb
    Explanation
    An incandescent bulb has a filament instead of argon gas. When electricity passes through the filament, it heats up and produces light. This type of bulb is commonly used in household lighting fixtures. Fluorescent bulbs, on the other hand, use argon gas and a phosphor coating to produce light. Firefly lights are bioluminescent and do not use filaments or gas to produce light. Neon lights use neon gas to create their distinctive colors.

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  • 16. 
    What does all organic material or once living material contain? - ProProfs

    What does all organic material or once living material contain?

    • Oxygen

    • Hydrogen

    • Carbon

    • Cells

    Correct Answer
    A. Carbon
    Explanation
    All organic material or once living material contains carbon. Carbon is an essential element in the composition of organic compounds, including carbohydrates, lipids, proteins, and nucleic acids. It forms the backbone of these molecules and is responsible for their unique properties and functions. Carbon also plays a crucial role in the carbon cycle, where it is exchanged between the atmosphere, living organisms, and the Earth's crust.

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  • 17. 

    Which two elements are "chemically" similar?  (remember they must be in the "same" group)

    • Argon (Ar) and Neon (Ne

    • Iron (Fe) and Chlorine (Cl)

    • Sodium (Na) and Gold (Au)

    • Carbon (C) and Oxygen (O)

    Correct Answer
    A. Argon (Ar) and Neon (Ne
    Explanation
    Argon (Ar) and Neon (Ne) are chemically similar because they both belong to the same group on the periodic table, which is Group 18 or the noble gases. Noble gases are known for their stable and unreactive nature due to having a full outer electron shell. Both Argon and Neon have a full outer electron shell, making them chemically similar in terms of their reactivity and behavior.

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  • 18. 
    What type of energy is lighting? - ProProfs

    What type of energy is lighting?

    • Electrical energy

    • Mechanical energy

    • Light energy

    • Nuclear energy

    Correct Answer
    A. Nuclear energy

Quiz Review Timeline (Updated): Mar 21, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 01, 2009
    Quiz Created by
    Pcooper
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