Thermal Energy and Heat Transfer

Heat transfer occurs

• in many directions

• both from warm objects to colder ones and from cold objects to warmer ones

• only from warm objects to colder ones

• only from cold objects to warmer ones

Tags

NGSS.HS-PS3-4

What happens to particles as they heat up?

• They slow down
• Nothing
• They don't move
• They speed up

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What happens to particles as they cool down?

• They slow down
• Nothing
• They don't move
• They speed up

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

As you touch a hot stove the heat transfers -

• from your hand to the stove
• from the stove to your hand
• It doesn't transfer

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Hot objects begin to cool as-

• cooler air is transferred to the hot object.
• thermal energy in the object is transferred to the surrounding air.
• atoms in the object react with the oxygen in the air.
• thermal energy in the object cancels out energy in the air

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Which sentence explains why a cold metal spoon placed in a pot of boiling water becomes hot?

• Thermal energy is transferred from the spoon to the water.
• Thermal energy is transferred from the water to the spoon.
• Thermal energy in the water is transformed into kinetic energy in the spoon.
• Thermal energy in the spoon is transformed into kinetic energy in the water.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Which particles are moving fastest?

• Particles in ice.

• Particles in boiling water.

• Particles in water from the sink.

• Particles in steam.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Molecular motion _________ when temperature is increased.

• Increases
• Decreases

Tags

NGSS.MS-PS1-4

Conduction is heat transfer by -

• Touch
• Circles
• Waves

Tags

NGSS.MS-PS1-4

Radiation is heat transfer by-

• Touch
• Circles
• Waves

Tags

NGSS.MS-PS3-3

NGSS.MS-PS4-1

NGSS.MS-PS4-2