Lesson 3

Simple Machines

Scan Lesson 3. Read the lesson titles and bold words. Look at the pictures. Identify three facts that you discovered about simple machines. Record the facts in your Science Journal.

What is a simple machine? I found this on page

Define simple machine, and identify 6 types. .

Simple Machine Definition:

I found this on page

Diagram and describe types of levers. .

Diagram First-class lever

Second-class lever

Third-class lever

32

Work and Simple Machines

Description

Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

Levers

Lesson 3 | Simple Machines (continued)

I found this on page

.

Identify the variables in the equation for determining the ideal mechanical advantage of a lever. Include the units for each variable.

IMA =

I found this on page

.

Lin Lout

Detail the relationship between input/output arm and mechanical advantage in a first-class lever.

Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

Longer than, shorter than, or equal to?

I found this on page

.

>,