Heat Energy

The image is an example of what type of heat transfer?

• conduction
• convection
• radiation
• fusion

Which has higher thermal energy?

• a cup of hot coffee
•  bathtub full of warm water?

When you open the door to your house on a cold day, you feel a cold draft. What causes this?

• Radiation leaking from the inside out
• Radiation leaking from the outside in
•  Warm air from the inside moving to Warm air from the inside moving Warm air from the inside moving to the outside
• Cold air from the outside moving toward warm air on the inside

here are 4 answers which is a example of conduction?

• A cold cast iron skillet is placed onto a stovetop. When the stove is turned on, the skillet becomes very hot due to the conduction of heat from the burner to the skillet.
• visible light from a candle.
• electromagnetic radiation from your cell phone.
• microwaves from a microwave oven

what is it called when you directly touch something  

• conduction 
• convection 
• radiation 

which is an example of radiation?

• heating a tin can of water using a burner
• You can warm your back muscles with a heating pad.
• Boiling water

what is not an example of heat energy?

• Automobile fuels such as gasoline are sources of heat energy, as is the hot engine of a racecar or a school bus.
• When the burner of a stovetop is very hot
•  thermal energy 
• geothermal 

the transfer of heat by the movement of a fluid

• radiation 
• conduction 
• convection 
• thermal energy

in the troposphere the upward movement of warm air and downward movement of  cold air form what?

• radiation currents
• convection currents
• conduction currents