PDP Physical Unit1 Chap2 Review

Front

What is the attractive force between any two objects with mass called?

Back

Gravity is the attractive force between any two objects with mass.

Front

What is the attractive force between unlike substances that holds them together called?

Back

Adhesion is the attractive force between unlike substances that holds them together.

Front

Do solids and liquids have a defined volume?

Back

True, solids and liquids have a defined volume, while gases do not.

Front

What happens to energy during deposition?

Back

During deposition, energy is lost.

Front

What phases of matter have no definite shape?

Back

Liquids and gases have no definite shape.

Front

What is cohesion?

Back

Cohesion is the attractive force between molecules of the same substance.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.

Front

What is the definition of density?

Back

Density is the mass per unit volume of a substance.

Front

What is the phase change from gas to liquid called?

Back

The phase change from gas to liquid is called condensation.

Front

What is the phase change from liquid to gas called?

Back

The phase change from liquid to gas is called evaporation.