Energy and Heat Flow

Heat transfer always goes from-

• Cold to Hot
• Hot to Cold
• Heat doesn't transfer
• Freezing to Cold

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

What happens to particles as they cool down?

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

Tags

NGSS.MS-PS1-4

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.HS-PS3-4

Thermal energy ALWAYS moves from _____ to _____.

• solid to liquid
• ice to water
• hot to cold
• solid to gas

Tags

NGSS.MS-PS3-3

If an object has particles that are moving very slowly, the object's temperature is probably ______.

• hot
• small
• cold
• big

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When holding a cup of ice water, your warm hand becomes cold. How does the heat transfer?

• From the cold cup to your hand
• From the cold cup to the warm air
• From the ice to your hand
• From your warm hand to the cold cup.

Tags

NGSS.MS-PS3-4

If you place a cold cup of water in the direct sunlight on a hot day, what change will take place in the thermal energy of the particles that make up the water?

• The particles will remain the same.
• The solar energy will cause the particles will slow down because the sun will make the water warmer.
• The particles will become smaller when the sun's energy heats the water up.
• The solar energy will cause the water to warm up.  This will cause the particles of water to change from moving very slowly-less thermal energy (when cold) to moving quickly as they gain thermal energy (warm up). 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When a popsicle melts, the particles  _____.

• gain thermal energy and speed up
• there are no particles in popsicles
• lose thermal energy and slow down
• stay the same

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is heat?

• How fast something warms up.
• 
  The measure of the average kinetic energy of all the particles in an object.
• 
  The transfer of energy from one object to another because of a temperature difference.
• The amount of kinetic energy in a substances

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-5