Thermal Energy

How do air conditioners cool the air?

• air conditioners cool air by air slowing molecules down.

• air conditioners cool air by speeding air molecules up.

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Which way will the energy transfer when these 2 blocks touch?

• From bottom block to the top

• From top block to the bottom

• The energy will not transfer

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NGSS.MS-PS1-4

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When you heat a sample of a solid, the particles that make up the solid

• get bigger

• lose mass

• move faster

• slow down

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NGSS.MS-PS1-4

When you heat a sample of gas, what happens to the particles that make up the gas?

• The particles move faster

• The particles break apart

• The particles get smaller

• The particles become more dense

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NGSS.MS-PS1-4

Anything that takes up space and has mass is

• Matter

• Volume

• Liquid

• Atom

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The slower the particles in a substance move,

• the colder it is.

• the warmer it is.

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NGSS.MS-PS1-4

If particles are not locked in place and can slide past each other the substance is in a phase we call ____.

• solid

• liquid

• gas

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NGSS.MS-PS1-4

How would you describe the way molecules move when the molecules are solid?

• the molecules are moving in place.

• the molecules are moving around each other.

• the molecules are moving away from each other.

• the molecules are not moving

Tags

NGSS.MS-PS1-4

Gas particles are...

• tightly packed.

• loosely bonded and flowing.

• free to fly in all directions.

• so hot that the electrons are removed from the nucleus.

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NGSS.MS-PS1-4

When hot and cold air makes contact with each other...

• the hot air will lose kinetic energy.

• the cold will gain kinetic energy.

• the hot air will lose potential energy.

• the cold air will lose potential energy,

Answer explanation

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