Gravity and Friction

Front

What is the definition of 'weight'?

Back

Measure of the gravitational pull on an object.

Front

What is the definition of 'mass'?

Back

A measure of how much matter (particles) an object has.

Front

What is gravity?

Back

A force that pulls objects toward each other, especially the pull of the Earth on objects.

Front

What is friction?

Back

A force that opposes the motion of an object when it comes into contact with another object.

Front

What is static friction?

Back

The friction that keeps an object at rest and prevents it from moving.

Front

What is sliding friction?

Back

The friction that occurs when two objects slide past each other.

Front

What is rolling friction?

Back

The friction that occurs when an object rolls over a surface.

Front

How does gravity affect weight?

Back

Weight is the result of gravity acting on mass; more mass means more weight.

Front

What happens to friction when surfaces are rough?

Back

Rough surfaces create more friction than smooth surfaces.

Front

What is an example of static friction?

Back

A book resting on a table that does not slide.