Energy transfer

Front

What is the source of all energy on Earth?

Back

The sun.

Front

What is thermal energy?

Back

Thermal energy is the total energy of all the particles in an object, which depends on the number of atoms.

Front

What is temperature?

Back

Temperature is a measure of how hot or cold something is, and it does not depend on the number of atoms.

Front

What type of energy transfer keeps lizards warm when using a lamp?

Back

Radiation.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases).

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials.

Front

What is the direction of heat transfer between objects?

Back

Heat moves from a hotter object to a colder object.

Front

What is an example of conduction?

Back

Touching a hot stove and feeling the heat transfer to your hand.

Front

What is an example of convection?

Back

The rising and falling of wax in a lava lamp.

Front

What is an example of radiation?

Back

Feeling warmth from the sun on your skin.