Riding the Gravitron

Is there a centrifugal force

• No

• Yes

• sometimes

Name the actual centripetal force acting on the riders.

• Normal force

• Gravity

• Friction

What direction does gravity act?

• down

• up

• towards the center of the circle

• away from the center of the circle

What direction does friction act

• up

• down

• toward the center of the circle

• away from the center of the circle

Which force is greater?

• Both are the same

• gravity

• friction