Greg applies a force of 200 N to move a box 2 meters. How much work did he do?

Which of the following must happen for work to be done?

What does a fixed pulley change

When a screwdriver is used as a lever to open a paint can, what is changed as the work is done?

What is a machine that is made of two simple machines?

The rate at which energy is transformed is called what?

If two people lift identical stacks of books the same direction and one person does the job twice as fast which of the following is true?

In which situation is a person doing work on an object?

What is an inclined plane that is wrapped around a cylinder?

What is the unit for power?

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