Post-test: Matter & Energy

Front

Which State of Matter has particles that are far apart and move freely?

Back

Gas

Front

A change in matter that does not produce new substances is called a __________ change.

Back

Physical Change

Front

What is the term for the ability to do work or cause change in matter?

Back

Energy

Front

In which state of matter do particles have a definite shape and volume?

Back

Solid

Front

How is density defined?

Back

Density is how tightly packed matter is in an object.

Front

What is the state of matter where particles are close together but can slide past one another?

Back

Liquid

Front

What is the formula for calculating density?

Back

Density = Mass / Volume

Front

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

Back

They gain energy and may begin to vibrate more, potentially changing to a liquid.

Front

What is the main difference between a physical change and a chemical change?

Back

A physical change does not alter the substance's chemical composition, while a chemical change does.

Front

What is an example of a chemical change?

Back

Rusting of iron.