Simple Machines and Work Review

Front

What is a simple machine?

Back

A simple machine is a device that changes the direction or magnitude of a force, making work easier. Examples include levers, pulleys, and inclined planes.

Front

What are the six types of simple machines?

Back

The six types of simple machines are: lever, wheel and axle, pulley, inclined plane, screw, and wedge.

Front

What is a lever?

Back

A lever is a bar or rod that pivots on a fulcrum to lift or move a load.

Front

What is the formula for calculating work?

Back

Work = Force x Distance (W = F x d) where work is measured in joules, force in newtons, and distance in meters.

Front

What is Mechanical Advantage?

Back

Mechanical Advantage is the ratio of the output force produced by a machine to the input force applied to it.

Front

How do you calculate Mechanical Advantage for levers?

Back

Mechanical Advantage (MA) = Length of effort arm / Length of load arm.

Front

What is the role of the fulcrum in a lever?

Back

The fulcrum is the pivot point around which the lever rotates, allowing it to lift or move a load.

Front

In a doorknob, what part functions as the wheel?

Back

The knob itself functions as the wheel in a doorknob.

Front

What is an example of an inclined plane?

Back

A ramp is an example of an inclined plane, which helps to lift objects with less effort.

Front

What is a pulley?

Back

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