Bill Nye: Heat

Front

What are the three ways thermal energy transfers?

Back

Convection, Conduction, Radiation

Front

Which object has more heat energy: a lit match, a snowball, or a 1,000 pound block of ice?

Back

A 1,000 pound block of ice has more heat energy.

Front

How do the molecules in cold objects move?

Back

Slowly.

Front

How do the molecules in warm objects move?

Back

Faster.

Front

What is it called when someone sits near a fire and becomes warmer?

Back

Radiation.

Front

What is conduction?

Back

The transfer of heat through direct contact between materials.

Front

What is convection?

Back

The transfer of heat through the movement of fluids (liquids and gases).

Front

What is radiation?

Back

The transfer of heat through electromagnetic waves, without needing a medium.

Front

What happens to molecules when they are heated?

Back

They move faster.

Front

What happens to molecules when they are cooled?

Back

They move slower.