Thermal Energy

Front

What is thermal energy?

Back

The motion of atoms or molecules within a substance.

Front

What state of matter has atoms that are constantly moving and bumping into each other?

Back

Liquid

Front

What state of matter has atoms that are closely spaced and vibrate in a fixed position?

Back

Solid

Front

What is a prototype?

Back

A simple model that lets you test out your design.

Front

What do engineers need to do to see if their solution works?

Back

Test their solution.

Front

What is the main difference between solids and liquids?

Back

In solids, atoms are closely spaced and vibrate in place; in liquids, atoms are more spread out and move freely.

Front

What happens to thermal energy when a substance is heated?

Back

The motion of its atoms or molecules increases.

Front

What is kinetic energy?

Back

The energy of motion, which is related to the movement of atoms or molecules.

Front

How does temperature relate to thermal energy?

Back

Temperature is a measure of the average kinetic energy of the atoms or molecules in a substance.

Front

What is the process of changing from a solid to a liquid called?

Back

Melting.