Friction

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

Rougher surfaces have ...

Back

greater friction

Front

What does friction produce?

Back

heat

Front

The force that acts in the opposite direction of motion when two surfaces come in contact.

Back

Friction

Front

Objects that are smooth have LESS friction than objects that are rough.

Back

TRUE

Front

Which of these materials would have the MOST amount of friction? Options: Metal, Tile, Sand Paper, Wood

Back

Sand Paper

Front

Friction is an example of a _____________

Back

contact force

Front

Which has more friction? Options: A, B

Back

B

Front

Smoother surfaces have ...

Back

less friction

Front

Friction is...

Back

A force