Simple Machines Quiz

What is the mechanical advantage of a lever determined by?

• The length of the lever arm

• The weight of the lever

• The material of the lever

• The color of the lever

Which simple machine consists of a wheel with a rope or cable wrapped around it?

• Lever

• Pulley

• Wheel and Axle

• Inclined Plane

What is the primary function of a wheel and axle?

• To hold objects together

• To lift heavy loads

• To reduce friction and increase efficiency in motion

• To split objects apart

Aria is using an inclined plane to slide a heavy box into a truck. This reduces the effort needed by:

• Increasing the distance over which the force is applied

• Decreasing the distance over which the force is applied

• Using electricity

• Using magnetic force

Which simple machine is essentially an inclined plane wrapped around a cylinder?

• Lever

• Pulley

• Screw

• Wedge

How does a wedge function effectively?

• By rolling

• By lifting

• By splitting an object into parts

• By reducing weight

What is the formula for work in physics?

Which simple machine would be most effective at moving water from a lower level to a higher level?

• Lever

• Wheel and Axle

• Pulley

• Screw

What advantage does a pulley system offer when used to lift heavy objects?

• It changes the direction of the force applied

• It increases the weight of the object

• It decreases the efficiency

• It requires more force

Which simple machine is made up of two inclined planes joined back to back?

• Lever

• Screw

• Wedge

• Wheel and Axle