Front

This type of force resists motion between two surfaces that are pressed together.

Back

Friction

Front

Which type of friction is shown in the picture?

Back

Fluid Friction

Front

You can move heavy boxes by sliding them over the ground, or you can put them on a dolly and then roll them over the ground. Which way makes it easier to move the boxes? Why?

Back

Rolling the boxes over the floor on the dolly is easier because rolling friction is less than sliding friction.

Front

The weakest type of friction that occurs between solid surfaces is _____ friction.

Back

rolling friction

Front

When you put on the brakes of your bike, the wheels stop turning. Then friction between the wheels and the road slows your bike to a stop. Which type of friction is this?

Back

sliding friction.

Front

The friction force acts in the ___________ direction of movement.

Back

opposite

Front

The roughness of the soles of our feet or shoes makes it possible for us to...

Back

walk without slipping

Front

What type of friction is not moving? Options: static, sliding, fluid, rolling

Back

static

Front

Rougher surfaces have ____________

Back

greater friction