Simple Machines Vocabulary

A hockey stick and a fishing pole are examples of what kind of levers?

• 1st class lever

• 2nd class lever

• 3rd class lever

• They are not levers

The rate (or time) at which work is done......

• work

• power

• distance

• simple machine

What kind of lever is a crowbar and a seesaw?

• 1st class

• 2nd class

• 3rd class

• They are not levers

What class lever is a wheelbarrow and a bottle opener?

• 1st class

• 2nd class

• 3rd class

• They are not levers

The pressure point of a lever is called.......

• the effort

• the fulcrum

• the point

• the load

What is in the middle of a 3rd class lever?

• load

• force

• fulcrum

• weight

The ratio of the output force to the input force is.....

• work

• fulcrum

• simple machine

• mechanical advantage

When talking about a lever, what is the load?

• the object being moved

• the balancing point

• the push

• the pull

The force applied by the machine...............

• work

• input force

• muscles

• output force

The force applied to the machine.............

• muscles

• input force

• energy

• output force