Expand/Contract Conductor/Insulator Review

Front

What happens to the volume when something is heated?

Back

It increases.

Front

What is the purpose of the narrow gaps between railroad tracks?

Back

To allow for the metal rails to expand and contract when the temperature changes.

Front

Which container will have the least change in temperature when holding water?

Back

Styrofoam.

Front

How do molecules move when something is cooled?

Back

They move slower.

Front

What happens to the molecules when ice cubes melt?

Back

They move faster.

Front

What is a conductor?

Back

A material that allows heat or electricity to pass through it easily.

Front

What is an insulator?

Back

A material that does not allow heat or electricity to pass through it easily.

Front

Give an example of a good conductor.

Back

Copper.

Front

Give an example of a good insulator.

Back

Rubber.

Front

What happens to the molecules in a solid when it is heated?

Back

They vibrate faster.