Gravity and Friction as Forces

Front

What is gravity?

Back

A force that pulls objects toward each other.

Front

Where can you jump higher, on Earth or on the Moon?

Back

On the Moon.

Front

What does friction do?

Back

It resists the motion of two surfaces sliding against each other.

Front

Rougher surfaces have ...

Back

greater friction.

Front

Which force must have the objects touching in order for it to work?

Back

Friction.

Front

True or False: The Sun has the greatest pull of gravity.

Back

True.

Front

What is an example of gravity?

Back

An apple falling from a tree.

Front

What happens to objects in free fall?

Back

They accelerate towards the ground due to gravity.

Front

What is the effect of friction on motion?

Back

It slows down or stops moving objects.

Front

What is the relationship between mass and gravity?

Back

More mass means a stronger gravitational pull.