Thermal energy Final

Molecules in a hotter sample will....

• have more kinetic energy

• be moving faster

• be moving slower

• be red in color

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

• true

• false

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?

• 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

Kinetic energy is the energy of...

• electricity

• potential movement

• motion

Energy will always be transferred from the...

• hotter sample to the colder sample

• colder sample to the hotter sample

When hot and cold air make contact with each other...

• the hot air will lose kinetic energy

• cold air will lose kinetic energy

Energy transfers occur when....

• they bond with each other

• they collide with each other

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

• true

• false

Once heat transfer is complete the temperature here will be

• 16 degrees

• 12 degrees

• 10 degrees