Roller Coasters

How do roller coasters make it to the top of the hill?

• a motorized chain

• magnets

• the engine

When does a roller coaster reach its maximum potential energy?

• At the bottom of the hill

• At the top of the hill

• When going around a loop

Positional energy is also called?

• Friction

• Kinetic energy

• Potential energy

The force that attracts a body toward the center of the earth is called

• Friction

• Gravity

• Potential energy

What force causes a roller coaster to go down hill?

• Gravity

• Friction

• Kinetic energy

Potential energy changes to what type of energy after a roller coaster goes down a hill?

• gravitational

• positional

• Kinetic

Other than friction, what is the other force that slows down a roller coaster?

• air resistance

• gravity

• kinetic energy

What is a result of friction?

• speed

• Ice

• Heat

While gravity pulls you toward the ground, what force pulls you to the top of the loop?

• Inertia

• friction

• potential energy

No engine is required on a roller coaster because of what force?

• Friction

• Gravity

• Inertia