Work & Simple Machines

Front

What is a compound (complex) machine?

Back

A device that has two or more simple machines working together.

Front

What type of simple machine is used to raise a flag up a flag pole?

Back

Pulley.

Front

What is a wheel and axle?

Back

A simple machine consisting of a circular object (wheel) that turns around a central rod (axle).

Tags

NGSS.MS-PS2-1

Front

How do you calculate the mechanical advantage of a lever?

Back

Mechanical Advantage = Load Force / Effort Force.

Front

What is an example of a wedge?

Back

An axe.

Front

What is a lever?

Back

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

Tags

NGSS.MS-PS2-2

Front

What is an inclined plane?

Back

A flat surface that is tilted at an angle to help raise or lower objects.

Tags

NGSS.MS-PS2-4

Front

What is a screw?

Back

A simple machine that is an inclined plane wrapped around a cylinder.

Front

What is a gear?

Back

A rotating machine part having cut teeth, which mesh with another toothed part to transmit torque.

Front

What is the purpose of a pulley?

Back

To change the direction of a force and make lifting easier.