Work and Energy Concepts

Front

What is necessary for work to be done?

Back

Both Force and Motion

Front

Which of these situations would be an example of work?

Back

A force being applied that moves an object in the same direction

Front

Which of these would be an example of work being done?

• Holding a heavy box above your head
• Studying for a test at your desk
• Kicking a soccer ball into a net
• Taking a picture on your phone

Back

Kicking a soccer ball into a net

Front

A box is pushed across the floor a total of 10 meters with 50 newtons of force. What is the work done on the object?

Back

500 J

Front

What amount of force would be needed to do 800 J of work over 40 meters?

Back

20 N

Front

How far could you push a 500 N object if you do 2500 J of work?

Back

50 m

Front

Which of these is a way that a simple machine makes work easier?

Back

All of these are ways that work is made easier.

Front

A simple machine that acts as a sloped surface to decrease the force needed to move an object.

Back

inclined plane

Front

A simple machine that converts rotational force into an upward or downward force.

Back

screw

Front

A simple machine that moves around a fulcrum and changes the direction of the force

Back

lever