Work, Simple Machines, and Mechanical Advantage

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. It measures how much a machine multiplies force.

Front

How do you calculate mechanical advantage?

Back

Mechanical advantage (MA) = Output Force / Input Force.

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 are the three classes of levers?

Back

1st Class: Fulcrum in the middle; 2nd Class: Load in the middle; 3rd Class: Effort in the middle.

Front

What is a first-class lever?

Back

A first-class lever has the fulcrum located between the input force and the output force.

Front

What is the role of the fulcrum in a lever?

Back

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

Front

How does moving the fulcrum affect mechanical advantage?

Back

Moving the fulcrum closer to the load increases mechanical advantage, allowing less input force to lift the load.

Front

What is an inclined plane?

Back

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

Front

What is a wedge?

Back

A wedge is a simple machine that consists of two inclined planes joined back to back, used to split or lift objects.

Front

What is a screw?

Back

A screw is a simple machine that converts rotational motion into linear motion, often used to hold objects together.