7Kb Friction

Friction is a force that slows things down when two things rub against each other

• True.

• False.

We can reduce friction by making surfaces smooth, or by using lubricants such as oil or grease.

• True.

• False.

Friction DOES NOT wear away things.

• True.

• False.

Decide whether each statement indicates more friction or less friction. Using a rubber mat in the shower.

• More friction.

• Less friction.

Decide whether each statement indicates more friction or less friction. Waxing skis.

• More friction.

• Less friction.

Decide whether each statement underneath indicates more friction or less friction. Oiling a bicycle wheel.

• More friction.

• Less friction.

Decide whether each statement underneath indicates more friction or less friction. Pulling on bicycle brakes.

• More friction.

• Less friction.

Decide whether each statement underneath indicates more friction or less friction. Sliding on a polished slide.

• More friction.

• Less friction.

Decide whether each statement underneath indicates more friction or less friction. Using rubber tires.

• More friction.

• Less friction.

Friction produces heat and noise.

• True.

• False.