Simple Machines FLASHCARD

Front

What is a simple machine?

Back

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

Front

What are the two simplest machines?

Back

The two simplest machines are the inclined plane and the lever.

Front

What is the purpose of a pulley?

Back

A pulley is used to lift heavy loads by changing the direction of the force applied.

Front

What is Mechanical Advantage (MA)?

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?

Back

Mechanical Advantage can be calculated using the formula: MA = (Output Force) / (Input Force).

Front

What is an inclined plane?

Back

An inclined plane is a flat surface that is tilted at an angle to help lift objects with less effort.

Front

What is a lever?

Back

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

Front

What is a screw?

Back

A screw is a simple machine that is essentially an inclined plane wrapped around a cylinder, used to hold objects together or lift materials.

Front

What is the function of a wedge?

Back

A wedge is a simple machine that is used to separate two objects or portions of an object, or to hold an object in place.

Front

What is the difference between a fixed pulley and a movable pulley?

Back

A fixed pulley is anchored in place and changes the direction of the force, while a movable pulley moves with the load and reduces the amount of input force needed.