Which of the following statements best describes the change that occurs as the temperature in the room increases to 20°?

• Cold air molecules collide to generate heat energy.

• Cold energy in the room transforms into heat energy.

• The room becomes warmer as heat energy is added to the room

• The room becomes warmer as cold energy is pushed out of the room.

Tags

NGSS.MS-PS1-4

Which of the following is the best example of heat being transferred by conduction?

• ocean currents moving warm water to cold water

• mountain boulders warming up in bright sunlight

• rocks buried in sand absorbing heat from surrounding sand

• air masses moving from high-pressure to low-pressure regions

On the Kelvin scale, absolute zero is

• 32

• 100

• 273

• 0

Which of these is a good conductor?

• Wood

• Paper

• Silver

• Air

What is thermal energy?

• A hot object

• The random motion (total potential and kinetic energy) of all particles within a substance

• The transfer of heat from one substance directly into another

• When a warm object becomes cool

Tags

NGSS.MS-PS1-4

Which image shows the faster moving molecules?

• A

• B

• Neither

• Both

Tags

NGSS.MS-PS1-4

Which image shows the lower thermal energy?

• A

• B

• Neither

• Both

Tags

NGSS.MS-PS1-4

Which image shows the higher thermal energy?

• A

• B

• Neither

• Both

Tags

NGSS.MS-PS1-4

Which of the following is a CONDUCTOR of thermal energy? (Select ALL that apply)

• Aluminum

• Glass

• Foam

• Iron

• Water

Tags

NGSS.MS-PS3-3

Which of the following is an INSULATOR of thermal energy? (Select ALL that apply)

• Aluminum

• Glass

• Foam

• Air

• Water

Tags

NGSS.MS-PS3-3