Friction Quiz

What is gravity?

• A force
• Energy
• A push
• All of them

Without gravity we would________. 

• Float away
• Stay in the ground
• Nothing would happen.
• I don't know

Tags

CCSS.L.1.6

CCSS.L.3.6

CCSS.L.K.5A

How does friction affect speed?

• more friction decreases speed
• more friction increases speed
• less friction decreases speed
• less friction doesn't affect speed

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

• True
• False

On which surface will a toy car travel the furthest?

• Carpet
• Polished Wood
• Ice

Rougher surfaces have ...

• greater friction
• less friction
• the same level of friction

Which of the following statements is false?

• Friction can only slow things down

• Friction is never useful

• Friction can stop things from moving

During the winter, roads may become dangerously icy and slick. So, some city workers spread a mixture of sand on the roads. What is the best explanation for doing this?

• Sand decreases the frictional force between car tires and the roads

• Sand increases the temperature between car tires and the roads.

• Sand decreases the gravitational force of the car on the roads.

• Sand increases the frictional force between car tires and the roads

A child rides her bike down a steep hillside. What is the best explanation of how she is able to slow down the speed of the bike?

• The brakes of the bike create a magnetic field to slow down the bike.

• The rubber of the tires against the pavement reduces the force of friction.

• The brakes rub against the tires to increase friction to slow down the bike.

• The speed of the bike creates a decreases in the gravitational pull

Two students were playing on a slide at a playground. Student 1 wore shorts and Student 2 wore long pants. Which is the most likely reason Student 2 moved down the slide more easily than Student 1?

• more friciton

• less friction

• less gravity

• more gravity