Work - Unit Test Review

What is power the quotient of?

• speed and distance
• speed and energy
• work and time
• work and distance

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

• power
• work
• momentum
• Watt

 Work done = Force x _________

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

What is the equation for power?

• P = Work/time
• P = Force/time
• P = time/distance
• P = Work * time

What is the equation for work?

• W = mass * acceleration
• W = force * distance
• W = force/distance
• W = speed/time

The unit used to measure power is the 

• Watt
• Newton
• Joule
• Newton*meter

Power is defined as the quantity that measures the rate at which _____ is done or energy is transformed.

• energy
• time
• work
• elasticity

Which of the following is a true statement about work?

• It measures how quickly an object accelerates 
• It measures how much effort is applied over a certain distance
• It measures the change in an object's rate of speed
• It measures how much time it takes to move a massive object

Simple machines make work easier by increasing what?

• The distance over which work is done 
• The force needed to do work 
• The time required to do work
• The acceleration of a massive object 

The fixed point on the lever is called 

• load
• resistance
• bar
• fulcrum