Roller Coaster and Simple Machine

Which simple machine is commonly used in the braking system of a roller coaster?

• Pulley

• Lever

• Screw

• Inclined Plane

What type of simple machine is a roller coaster track most similar to?

• Wedge

• Wheel and Axle

• Inclined Plane

• Lever

Which simple machine is often used in the lift mechanism of a roller coaster?

• Screw

• Pulley

• Lever

• Wedge

Which simple machine does a roller coaster car's wheel assembly primarily utilize?

• Screw

• Lever

• Inclined Plane

• Wheel and Axle

If a lever in a roller coaster mechanism has an effort arm 3 times longer than the resistance arm, its mechanical advantage is:

• 1

• 3

• 9

• 0.33

A pulley system with 4 supporting ropes has a mechanical advantage of:

• 2

• 4

• 8

• 16

In a screw mechanism of a roller coaster, if the pitch is decreased while keeping the radius constant, the mechanical advantage will:

• Increase

• Decrease

• Stay the same

• Become zero

For a wheel and axle mechanism, if the radius of the wheel is doubled while keeping the axle radius constant, the mechanical advantage will:

• Double

• Halve

• Quadruple

• Stay the same

If a roller coaster car is lifted to a height of 20 meters, and the work done is 160,000 Joules, the mass of the car is approximately:

• 400 kg

• 800 kg

• 1600 kg

• 3200 kg

In a frictionless roller coaster, the sum of kinetic and potential energy at any point is:

• Constant

• Zero

• Increasing

• Decreasing