Simple Machines Test Review-40 Questions

Front

What type of simple machine is found on the cap of a pickle jar?

Back

Screw

Front

No machine in existence has 100% efficiency due to ____________________.

Back

Friction

Front

A push or pull that can move an object is a __________.

Back

Force

Front

In a second class lever, the ______ is in the middle.

Back

Load

Front

What is the formula for calculating power?

Back

Power = Work / Time

Front

What is a lever?

Back

A simple machine that consists of a rigid bar that pivots around a fixed point called the fulcrum.

Front

What is the role of a fulcrum in a lever?

Back

The fulcrum is the pivot point around which the lever rotates.

Front

What is an inclined plane?

Back

A flat surface that is tilted at an angle to help lift objects.

Front

What is a pulley?

Back

A simple machine that uses a wheel and a rope to lift or lower objects.

Front

What is mechanical advantage?

Back

The ratio of the output force to the input force in a machine.