Simple Machines and Work Review

Simple Machines and Work Review

Assessment

Flashcard

Science

7th - 8th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

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.

2.

FLASHCARD QUESTION

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.

3.

FLASHCARD QUESTION

Front

What is a lever?

Back

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

4.

FLASHCARD QUESTION

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.

5.

FLASHCARD QUESTION

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.

6.

FLASHCARD QUESTION

Front

How do you calculate Mechanical Advantage for levers?

Back

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

7.

FLASHCARD QUESTION

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.

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