Thermal Energy

What is the definition of temperature?

• A measure of how warm something is

• A measure of how cold something is

• The average kinetic energy of the particles that make up a material

• A measurement of the sun's radiation reflecting off Earth's surface

What is the definition of thermal energy?

• Fire

• The sum of kinetic energy and potential energy in the particles that make up a material

• How much cold you do not have

• The amount of hot atoms you have in something

What is conduction?

• Warm air rises. Cold air sinks

• Transfer of kinetic energy through touch

• Drawing something to you

• Magnetism

What is convection?

• Warm air rises. Cold air sinks

• Transfer of kinetic energy through touch

• Drawing something to you

• Magnetism

What is radiation?

• emission of electromagnetic waves

• when something leaves your body

• transfer of kinetic energy through touch

• the opposite of convection

What is a good example of a conductor?

• copper

• silver

• gold

• all of the above

• none of the above

What is a good example of an insulator?

• copper

• gold

• silver

• all of the above

• none of the above

If you leave two objects in a room for a long time and one feels hot but the other feels cold, why is that?

• One of them is colder than the other

• One of them is hotter than the other

• They are both the same temperature. One is just a better conductor than the other.

• None of the above

What is cold?

• Anything below 32 degrees farenheit

• Something that only occurs during the winter

• Something that feels cold

• The absence of heat

If you touch something that feels cold to you, why does your hand suddenly start to become cooler?

• The object is transferring its cold to you very quickly

• Your hand is radiating

• You are transferring your heat to the object very quickly

• Your hand has lots of potential energy