Which of the following is not a simple machine?

Which type of simple machine is a seesaw?

A knife is an example of which simple machine?

Which of these simple machines is used in a flagpole to raise a flag?

An inclined plane makes it easier to:

Which of these is an example of a wheel and axle?

A screw is basically a:

Which type of lever is a crowbar?

Which simple machine is most like a doorstop?

Which simple machine is used in scissors?