Simple Machine & Mechanical Advantage

Front

What do simple machines increase to make work easier?

Back

The distance over which work is done.

Front

Which ramp requires the least effort to walk up?

Back

Walking up a long ramp with a slight incline.

Front

What is the formula for calculating work?

Back

Force x Distance = Work

Front

What is the work done by a man if no movement occurs?

Back

0 J

Front

What is a lever?

Back

Any bar or a rod that's set up to tilt on a fulcrum.

Front

What is mechanical advantage?

Back

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

Front

How do pulleys make work easier?

Back

By changing the direction of the force applied.

Front

What is the purpose of a wedge?

Back

To split or cut objects apart.

Front

What is an example of a first-class lever?

Back

A seesaw.

Front

What is the principle of a screw?

Back

It converts rotational motion into linear motion.