Work is

• What one does to earn money
• A measure of how much force you apply to move an object
• The distance you need to move an obect
• The resistance an object gives

A bar with a fulcrum used to lift or exert pressure at one point is _________

• A screw
• A lever
• A pulley
• A wheel and axle

What is this?

• A pulley
• An inclined plane
• A wedge
• A wheel and axle

What is this?

• A pulley
• An inclined plane
• A wedge
• A wheel and axle

What is this?

• A pulley
• An inclined plane
• A lever
• A wheel and axle

What is this?

• A pulley
• A lever
• A wheel and axle
• An inclined plane

What is this?

• A screw
• A pulley
• A lever
• A wheel and axle

What is this?

• A pulley
• A lever
• A wedge
• A wheel and axle

Which one is an example of a lever?

• A bicycle wheel
• A see saw
• A light bulb
• A knife edge

Which of the following is a simple machine used to hold objects together?

• A screw

• A lever

• A wedge

• A pulley