Simple Machines
Give three examples of each of the six types of simple machines.

Lever
a)
b)
c)

Inclined Plane
a)
b)
c)

Wheel and Axel
a)
b)
c)

Wedge
a)
b)
c)

Pulley
a)
b)
c)

Screw
a)
b)
c)

What is a mechanical advantage?
 
 
 

What the version of mechanical advantage that uses torque?
 
 
 
 

What is the formula for calculating efficiency?
 
 
 
 

A person lifts a 950 N box by pushing it up an incline.  If the person exerts a force of 350 N along the incline, what is the mechanical advantage of the incline?
 
 
 
 
 

The efficiency of a squeaky pulley system is 73%.  The pulleys are used to raise a mass a certain height.  What force is exerted on the machine if a rope is pulled 18.0 m in order to raise a 58 kg mass a height of 3.0 m?
 
 
 
 
 


Copyright Alexplorer. Some items taken from or adapted from other materials. This page is free for use in a classroom setting.
Back to the Physics index