Chapter 3 States of Matter

The heavier a particle, the ______ it moves.

• Slower

• Faster

• Less

• More

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NGSS.MS-PS2-2

What determines the speed of the atoms and molecules of a particular substance?

• Size of atoms and molecules

• Temperature of the substance

• Both (a) and (b)

• None of the above

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The change of a substance from a solid directly to a gas is called

• Condensation

• Evaporation

• Melting

• Sublimation

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Evaporation refers to the change of state from a

• Liquid to a gas

• Solid to a liquid

• Gas to a liquid

• Liquid to a solid

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The law of conservation of mass states that mass cannot be

• Burned

• Created and destroyed

• Changed in form

• Heated or cooled

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When a fixed sample of gas increases in volume, it must also

• Decreases in pressure

• Increase in temperature

• Either (a) and (b)

• Both (a) and (b)

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Pressure is calculated by dividing force by the ____ over which the force is exerted.

• Mass

• Area

• Volume

• None of the above

As the temperature of a fixed amount of gas at constant volume decreases, it’s pressure

• Decreases

• Increases

• Stays the same

• None of the above

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NGSS.MS-PS1-4

According to the kinetic theory of matter, which of the following statements is their about matter?

• The atoms and molecules of a substance are always in motion.

• The higher the temperature of a substance, the faster it’s particles move.

• More massive particles move more slowly than less massive particles.

• All of the above

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NGSS.MS-PS1-4

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The process of solid changing directly into a gas is called

• Condensation

• Freezing

• Evaporation

• Sublimation

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