Forces and Motion

Front

Is friction a contact force?

Back

Yes

Front

Unit for measuring forces

Back

Newton (N)

Front

If an object is not moving or moving at a constant speed...

Back

The forces must be balanced

Front

Example of a non-contact force

Back

Gravity

Front

Are the forces acting on the crate balanced or unbalanced.

Back

Unbalanced

Front

The upwards force caused by water is called....

Back

Upthrust

Front

Use the arrows in the diagram to decide what is happening to the tennis ball?

Back

It will start to move downwards.

Front

True or false? Objects can start to move, accelerate or decelerate only when experiencing unbalanced forces.

Back

True

Front

Calculate the resultant force on this crate?

Back

20 N left

Front

There is 40N acting on an object pushing it up and 40N pushing it down. Calculate the resultant force.

Back

0 N