Openscied Unit 2: Thermal Energy

Molecules in a hotter sample will....

• have more kinetic energy

• be moving faster

• be moving slower

• be red in color

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Molecules move at the same speed no matter what the temperature.

• true

• false

Tags

NGSS.MS-PS1-4

There will always be heat transfer between two objects that are touching if...

• the temperatures are the same in each sample

• there is a difference in temperature between samples

When will heat transfer stop? Select ALL that apply.

• When the molecules reach a state of equilibrium

• When the molecules are moving at the same speed

• When the kinetic energy is equal

• When there is a phase change from liquid to gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Kinetic energy is the energy of...

• electricity

• potential movement

• motion of molecules

• radiation

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Energy will always be transferred from the...

• hotter sample to the colder sample

• colder sample to the hotter sample

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Energy transfers occur when....

• objects bond with each other

• objects collide with each other

• naturally without reason

• something is cold and something is hot

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

When a hot and cold sample first come into contact with each other...

• all of the molecules in both samples will have the same kinetic energy

• some of the molecules in both samples will have a different kinetic energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

After these two samples achieve equilibrium the temperature will be 30.

• true

• false

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Water freezes at....

• 0 degrees Celsius

• 32 degrees Celsius

• 32 degrees Fahrenheit

• 45.8 degrees Celsius

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5