Unit 6 PS Review

This occurs when a force acts on an object and causes a displacement of that object

• power
• work
• momentum
• watt

A _____________________ keeps the total amount of work the same, but makes the work easier

• prop
• machine
• Watt
• joules

 Work done = Force x _________

• a. distance
• b. acceleration
• c. velocity
• d. speed

A ______________ is a rope or chain wrapped around a wheel. 

• wedge 
• lever 
• pulley 
• screw

Any device that makes work easier is called a ______________________.

• Joule 
• prop
• lever
• machine

This type of simple machine pivots on a fulcrum...

• lever
• pulley
• power
• screw

If you use a crowbar to get the lid off of a bucket, what simple machine are you using?

• Inclined Plane
• Pulley
• Wheel and Axle
• Lever

A force exerted over a distance to move an object is ______________________.

• power
• work
• momentum
• Watt

This is work divided by time.

• Work
• Distance
• Power

What is the definition of power?

• the amount of work an object does
• the rate at which force is applied
• the amount of matter in an object
• the rate at which work is done