Post Quiz - Simple Machines

What is the primary function of a simple machine?

• To make work easier by magnifying or changing the direction of a force

• To reduce the speed of work

• To complicate simple tasks

• To increase the amount of work done

How many types of simple machines are there?

• Five

• Six

• Seven

• Four

Which simple machine is used to move objects apart?

• Lever

• Wedge

• Screw

• Pulley

What is the purpose of a pulley?

• To screw objects together

• To increase friction

• To lift or move loads with less effort

• To cut objects

What is an inclined plane primarily used for?

• To decrease the distance an object moves

• To allow loads to slide up to a higher level with less force

• To increase the force needed

• To bind objects together

What is a screw considered in terms of simple machines?

• A type of wheel and axle

• A type of inclined plane

• A standalone machine

• A type of lever

What does the mechanical advantage of a lever allow?

• To increase the distance an object moves

• To move heavier objects than normally possible

• To decrease the weight of an object

• To reduce the effectiveness of the lever

What is a wedge made of?

• Two pulleys combined

• Two inclined planes placed back to back

• Two screws back to back

• Two levers side by side

What is the function of a wheelbarrow as a complex machine?

• It combines pulleys and wedges

• It combines levers with a wheel and axle

• It combines wheels and inclined planes

• It combines levers and screws

What simple machines do scissors combine?

• Inclined planes and levers

• Pulleys and screws

• Levers and wedges

• Wheels and axles