Simple Machines and Work Ultimate Review

Front

What is a simple machine?

Back

A simple machine is a device that makes work easier by allowing us to push or pull in a more efficient way. Examples include levers, pulleys, and inclined planes.

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What is a lever?

Back

A lever is a simple machine that consists of a rigid bar that pivots around a fixed point called a fulcrum. It is used to lift or move loads.

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What is a fulcrum?

Back

A fulcrum is the point on which a lever pivots. It is the support that allows the lever to lift or move an object.

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What is an inclined plane?

Back

An inclined plane is a flat surface that is tilted at an angle to help raise or lower objects. It reduces the amount of force needed to lift something.

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What is a wheel and axle?

Back

A wheel and axle is a simple machine made up of a wheel attached to a smaller axle. When the wheel turns, the axle turns as well, making it easier to move objects.

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What is a pulley?

Back

A pulley is a simple machine that consists of a wheel on an axle or shaft that is designed to support movement and change the direction of force.

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What is a screw?

Back

A screw is a simple machine that consists of a spiral inclined plane wrapped around a cylinder. It is used to hold objects together or lift materials.

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What is a wedge?

Back

A wedge is a simple machine that is used to split or cut objects apart. It has a thick end and a thin edge.

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What is work in physics?

Back

Work is done when a force is applied to an object and the object moves in the direction of the force. It is calculated as Work = Force x Distance.

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What is mechanical advantage?

Back

Mechanical advantage is the ratio of the output force produced by a machine to the input force applied. It shows how much a machine multiplies force.