Thermal Energy Test

Which of the following is ALWAYS true?

• hotter objects have more total kinetic energy than smaller objects

• hotter objects have more average kinetic energy than cooler objects

• bigger objects have more average kinetic energy than smaller objects

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When an object's molecules get hotter, the molecules

• move faster

• move slower

• get larger

• get smaller

Tags

NGSS.MS-PS1-4

When two objects are touching, energy is transferred from the

• larger object to the smaller object

• smaller object to the larger object

• hotter object to the colder object

• colder object to the hotter object

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

Energy transfer stops when the two objects

• have the same total kinetic energy

• reach a state of equilibrium

• run out of energy

• melt

Tags

NGSS.HS-PS3-4

When two objects at different temperatures touch, the colder object will

• gain kinetic energy

• lose kinetic energy

• cool off

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which will always be greater?

• an object's average kinetic energy

• an object's total kinetic energy

• both total and average kinetic energy are always equal

An object's average kinetic energy refers to its

• thermal energy

• temperature

• potential energy

Tags

NGSS.HS-PS2-1

What will the temperature be once energy transfer is complete?

• 16

• 8

• 12

• 24

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What will the equilibrium temperature be for these two objects?

• 30

• more than 30

• less than 30

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Absolute Zero means molecules

• are moving as fast as they can go

• are moving very slowly

• have stopped moving