Thermal Energy Chapter 1 & 2

When 2 objects touch aka collide the warmer one will always transfer its energy to the cooler one.

• True

• False

Tags

NGSS.MS-PS2-1

NGSS.MS-PS3-1

NGSS.MS-PS3-5

All objects are made of...

• proteins

• cells

• temperature

• molecules

Tags

NGSS.MS-LS1-1

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

• faster

• slower

• to the left

• up

Tags

NGSS.MS-PS1-4

When two things are in contact, kinetic energy transfers...

• between two things

• to the right to the right to the right to the right

• from slow-moving molecules to faster-moving molecules.

• from fast-moving molecules to slower-moving molecules.

Tags

NGSS.MS-PS3-5

Objects will transfer energy until they reach equilibrium and have molecules that...

• all move at a faster speed

• move at about the same speed

• all move at a slower speed

• are completely still

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A 100 degree sample makes contact with a 0 degree sample, at what temperature will the systems be at equal?

• 90

• 50

• 70

• 30

When a thing gets hotter, its molecules are moving slower and have less kinetic energy.

• True

• False

Tags

NGSS.MS-PS1-4

Why does the transfer of energy between two colliding things stop?

• When the two non-colliding things get equally hot molecules make energy

• Molecules make more kinetic energy until it is balanced

• Molecules stop transferring energy when colliding systems reach equilibrium

• The molecules of a system destroy energy when the system is balanced

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

How do air conditioners cool the air?

• air conditioners cool air by air slowing molecules down.

• air conditioners cool air by speeding air molecules up.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

You order a pizza from Domino's for delivery and the driver left the bag open on the way over. The pizza is cold. What happened?

• The energy in the molecules of the pizza decreased

• The cold energy in the molecules of the pizza increased

• The pizza lost heat molecules

• The energy in the molecules of the pizza increased

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5