Simple machine consisting of a rigid bar that rotates about a fixed point, called a fulcrum. Levers affect the effort, or force, needed to do a certain amount of work, and are used to lift heavy objects.

A flexible bar resting on a pivot, used to move a heavy or firmly fixed load with one end when pressure is applied to the other.

Simple Machines - Levers

Question 1

Question

What is a lever?

Answer

A flexible bar resting on a pivot, used to move a heavy or firmly fixed load with one end when pressure is applied to the other.

Image:
20bcfc50-9d04-44fd-a6dd-460d99f70178 (image/jpeg)
Simple machine consisting of a rigid bar that rotates about a fixed point, called a fulcrum. Levers affect the effort, or force, needed to do a certain amount of work, and are used to lift heavy objects.

Image:
048d5a2f-1dd3-4742-a8da-44d9e5a520dd (image/jpeg)

Question 2

Question

What does a lever consist of?

Image:

1469be15-a065-4094-a7ff-563fc07c1e31 (image/png)

Answer

Fulcrum
Effort
Load
Fulcrum
Effort
Load
Fulcrum
Effort
Load

Question 3

Question

What type of levers exist?

Answer

First Class Lever
Big Lever
Second Class Lever
Small Lever
Third Class Lever
Plastic Lever

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Simple Machines - Levers

Description

Resource summary

Question 1

Question 2

Question 3

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	Created by ATI JML about 7 years ago