Simple Machines

Match it! Select the correct answer from the pull down...Good luck!

With a second class lever, such as a wheelbarrow, in which direction is the input force?

Which is a third class lever?

What decreases a machine's efficiency?

How is mechanical efficiency determined?

A machine's mechanical advantage tells you

The Law of Conservation of Energy explains the

How can you increase the amount of work done?

Which of the following is a first class lever?