Forces and Friction Concepts

Front

What is a lubricant?

Back

A substance that reduces friction between surfaces, like lotion.

Front

What is gravity?

Back

An invisible force that pulls objects towards each other.

Front

What object needs the most force to move?

Back

A boulder.

Front

What type of surfaces cause more friction?

Back

Rough surfaces.

Front

Who studies forces?

Back

A physicist.

Front

What is friction?

Back

A force that opposes the motion of two surfaces sliding against each other.

Front

What happens when you push a heavy object?

Back

It requires more force to move it.

Front

What is an example of a force?

Back

A push or pull on an object.

Front

What is the effect of lubrication on friction?

Back

It decreases friction.

Front

What is a force that pulls objects down to the ground?

Back

Gravity.