4th Grade - Forces

Front

What is friction?

Back

Friction is a force that opposes the motion of an object. It acts in the opposite direction of movement.

Front

What direction does friction act in relation to movement?

Back

Friction acts in the opposite direction of movement.

Front

What force is responsible for a rolling ball eventually stopping?

Back

Friction is the force that slows down and stops a rolling ball.

Front

What pulls objects back to Earth?

Back

Gravity is the force that pulls objects towards the center of the Earth.

Front

Why is it harder to move down a hill?

Back

Friction makes it harder to move down a hill because it opposes the motion.

Front

What happens when two people pull with the same amount of force?

Back

If two people pull with the same amount of force, they will not move at all.

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, such as the Earth and an object.

Front

How does friction affect motion?

Back

Friction slows down or stops the motion of objects.

Front

Can friction be helpful?

Back

Yes, friction helps us walk without slipping and allows cars to grip the road.

Front

What is an example of a force?

Back

An example of a force is pushing a door open.