Friction

Friction acts in _________ direction to the way an object is going.

• a similar

• a parallel

• an opposite

Which surface has LESS friction?

• wet floor

• dry floor

• rocky road

How does friction affects speed?

• more friction decreases speed

• less friction decreases speed

• more friction increases speed

Which of the following is an example of friction that is helpful?

• Brakes used on cars

• Tires of cars on the road

• All examples are helpful

Which would NOT be a good way of reducing friction?

• making the surface smoother

• making the surface rougher

• using wax, oil, or grease