4, 5, 6 Motion Flashcard

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it comes into contact with another surface.

Front

What is an example of low friction being helpful?

Back

A bowling ball easily rolling down the lane.

Front

What is work in physics?

Back

Work is the force needed to move an object over a distance.

Front

Which example illustrates work being done?

Back

Pushing a cart through the store.

Front

What force keeps the moon in orbit around the Earth?

Back

Earth's gravity.

Front

What does a force diagram show?

Back

A force diagram shows the direction and magnitude of forces acting on an object.

Front

If a block is pushed in a certain direction, which way will it move?

Back

In the direction of the force.

Front

What does it mean if forces are balanced?

Back

Balanced forces mean that the total force acting on an object is zero, resulting in no change in motion.

Front

What does it mean if forces are unbalanced?

Back

Unbalanced forces result in a change in motion, causing the object to accelerate.

Front

What happens to an object when it is acted upon by unbalanced forces?

Back

The object will speed up, slow down, or change direction.