Thermal Energy Practice

Define Thermal Energy

• The average kinetic energy of all particles in a substance.

• The flow or exchange of thermal energy to another substance.

• The total amount of kinetic energy contained in the atoms of a substance.

• The amount of heat transfer from one system to another.

The measure of the average kinetic energy of all molecules in a sample of matter.

• Heat

• Thermal Energy

• Radiation

• Temperature

Which of the following would contain molecules with the greatest average kinetic energy?

• Water vapor from your breath on a cold night.

• A snow ball

• Ice on a pond

• A glass of hot coco

If the molecules in an object begin to move faster, their average kinetic energy will __________and the object's temp. will ___________.

• Increase, rise.

• Increase, fall.

• decrease, rise.

• decrease, fall.

what kind of heat is happening when the sun heats your body

• conduction
• convection
• density
• radiation

heat energy traveling through space is an example of _____

• convection
• density
• radiation
• conduction

heat always travels from _____ to ______ objects

• hot to cold
• cold to hot
• cold to cold
• hot to hot

you get sunburned because of _______

• conduction
• convection
• radiation

This is a lava lamp. When the light bulb heats the wax, the wax rises. When the wax cools, it falls. This cycle of rising/falling is an example of:

• Conduction.
• Convection.
• Radiation.

The baby chickens are kept warm from the heat lamps demonstrates this type of heat transfer. 

• conduction
• convection
• radiation