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You need to pull down the safety bar before the roller coaster ride starts.
True
The roller coaster goes slowly up a steep hill.
True
Gravity pulls the roller coaster down the hill quickly.
True
You feel very light when the roller coaster moves quickly downhill.
True
You feel light when you go quickly up the loop-the-loop.
False. You feel heavy when you go quickly up the loop-the-loop.
Gravity pulls you down when you are going through the loop.
True
At the top of the loop, you are high in the sky and upside down.
True
You don’t fall out of your seat because your body holds you in.
False. You don’t fall out because centripetal force and the speed of the car keep you in your seat.
The force that keeps you moving in a circle is called centripetal force.
True
The roller coaster uses friction to stop.
True
When the roller coaster stops quickly, your body wants to stop too.
False. When the roller coaster stops quickly, your body wants to keep moving. This is called inertia.
Safety bars keep you in place when the roller coaster stops.
True
Some people feel dizzy or sick on roller coasters because the forces change.
True
We experience friction, centripetal force, and gravity in everyday life.
True
You feel gravity when you jump with your bike and come down.
True
You feel centripetal force when you turn your bike.
True
