Friction

Front

How does friction affect speed?

Back

More friction decreases speed.

Front

Friction is a force that acts in an ___________ direction of movement.

Back

opposite

Front

A type of friction that occurs when air pushes against a moving object causing it to decelerate.

Back

air resistance

Front

Which of the following is an example of friction that is helpful? Options: Brakes used on a bike, Tires from a car on the road, Tread on the bottom of your shoes.

Back

All are examples that are helpful

Front

Which of the following is an example of friction that is harmful? Options: Pencil marking on paper, Engine parts wearing out, sand placed on ice in the winter, Using an eraser to erase marks

Back

Engine parts wearing out

Front

What does friction produce?

Back

heat

Front

Without friction, an object in motion would never stop.

Back

true

Front

The rougher the surface, the faster an object will travel over the surface.

Back

false

Front

Rough surfaces have _________

Back

greater friction

Front

The shape of an object which helps in reducing friction

Back

streamlined