Friction - Quiz prim5

1.

A puck slides along an icy surface. What makes it slow down?

 It runs out of push

 It rubs against the ice

 It runs out of electricity

2.

A boy sits halfway down a grassy slope. What force stops him sliding down?

 Weight

 Gravity

 Friction

3.

On which surface will a toy sledge travel the furthest?

 Carpet

 Polished wood

 Ice

4.

On which surface will a toy sledge travel the least distance?

 Carpet

 Polished wood

 Ice

5.

Rougher surfaces have ...

 greater friction

 less friction

 the same level of friction

6.

Which of the following is an example of trying to increase friction?

 Squirting oil into door hinges

 Spreading grit on icy roads

 Waxing the underneath of skis

7.

Which of the following statements is true?

 Friction is a force that only occurs between solids

 Friction is a force that only occurs on rough surfaces

 Friction is a force that only occurs when surfaces touch each other

8.

Which of the following statements is false?

 Friction can only slow things down

 Friction is never useful

 Friction can stop things from moving

9.

Air resistance and water resistance are both types of friction. Is this true or false?

 True

 False

 Neither true nor false

10.

If you poured oil onto a wooden surface, the friction would ...

 be reduced

 be increased

 remain the same