Amplify Thermal Energy

When an object gets colder, its molecules move...

• slower

• faster

• the same

• it changes

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which object is hotter?

• Object A because it has the highest average kinetic energy.

• Object B because it has the highest average kinetic energy.

• Object C because it has the highest average kinetic energy.

• Object C because it has the most molecules with high kinetic energy.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

When an object's molecules get hotter, its molecules

• move faster

• move slower

• get larger

• get smaller

Tags

NGSS.MS-PS1-4

What is the BEST definition of "temperature"?

• the amount of movement that atoms store

• The transfer of energy from one form to another

• A measure of the average speed of the molecules of a substance.

• A measure of how hot or cold something is

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What type of energy transfer is shown in the picture?

• Radiation

• Conduction

• Convection

What is the correct temperature order?

• Sample A: cooler

  Sample B: warmer

• Sample A: hotter

  Sample B: colder

• Sample A: warmer

  Sample B: cooler

• Sample A: colder

  Sample B: hotter

Tags

NGSS.MS-PS1-4

What is the correct temperature order?

• Sample C: warmer

  Sample D: cooler

• Sample C: hotter

  Sample D: colder

• Sample C: cooler

  Sample D: warmer

• Sample C: colder

  Sample D: hotter

Tags

NGSS.MS-PS1-4

Which diagram shows the correct energy levels for hot and cold water?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The average kinetic energy of the molecules that make up this sample is

• 2

• 4

• 3

• 27

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When you rub your hands together really fast, your hands get hot. Therefore, you are converting motion (kinetic) energy into _____.

• sound energy

• mechanical energy

• electrical energy

• thermal energy

Tags

NGSS.MS-PS3-5