Forces and Friction

Match it! Select the correct answer from the pull down...Good luck!

A force that opposes motion between two surfaces is:

Friction can be increased by adding :

Friction depends on:

The total of all the forces acting on an object is:

Forces do not result in an object moving when they are:

When forces work in opposite directions, objects are:

Friction happens because:

Friction can be reduced by adding: