2024 Work Power and Machines REview

Work done = Force x _________

• distance
• acceleration
• velocity
• speed

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

• power
• work
• momentum
• Watt

The unit used to measure work is 

• Watt
• Newton
• Joule 
• meter

A person applies a force to a wall. 

•   Work is done because the person uses energy when applying the force  
• Work is done because the wall heats up at the place where the force is applied  
• No work is done

A flagpole is an example of

• wedge
• pulley
• incline plane
• wheel and axle

It takes 20 N of force to move a box a distance of 10 m. How much work is done on the box ?

• 200J
• 20.0J
• 2J
• 200N

you lift your book bag from the floor to your desk

• Work
• Not work

you carry your book bag around all day

• Work
• Not Work

you lift grocery bags out of the trunk

• Work
• Not Work

Lightbulb

• wedge
• pulley
• incline plane
• screw