Types of forces

a force that produce when two surface are rubbes aganist each other.

friction can be useful

The soles of shoes and the ground stop you from slipping when you walk.

froction can be a problem

friction can be a problem like:wear out,overheat and slow down.

it caused by the pushing or pulling action of a magnet.

it in the springs when they stretched,twisted or compressed.

when we compressed them,they can return to their original shapes.

A force that pulls objects towards the Earth.

causes objects to have weight.

what does the force of gravity do?

it causes water to flow downwards.

it makes things in the air fall to the ground.