SECTION
MODERN TECHNOLOGY USES COMPOUND MACHINES.
BIG IDEA Machines
KEY CONCEPT
CHAPTER 5
Machines
5.3 Reading Study Guide B
help people work by changing the force applied to an object.
Modern technology uses compound machines.
Review
Simple machines change the size or direction of a force.
Take Notes
I.
Compound machines are combinations of simple machines.
(p. 164)
1.
What simple machines make up a single pair of scissors? Does this make the
scissors a simple or a compound machine? Explain your answer.
A. Gears (p. 165)
Copyright © by McDougal Littell, a division of Houghton Mifflin Company
2.
Draw a picture to show how a set of gears forms a compound machine.
II. Mechanical Advantage of Compound Machines (p. 165)
3.
Fill in the main-idea web with details about the mechanical advantage of
compound machines.
Mechanical Advantage of
Compound Machines
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III. Modern technology creates new uses for machines. (p. 166)
CHAPTER 5
Machines
4.
What simple machines make up the cutting section of the Jaws of Life tool?
A. Microtechnology and Nanotechnology (p. 166)
5.
What is nanotechnology?
6.
What are some uses for nanotechnology?
B. Robots (p. 167)
Does a robot have to look or move like a person? Explain why or why not.
8.
Name two reasons why a robot might be used to complete a task rather than a
human.
Copyright © by McDougal Littell, a division of Houghton Mifflin Company
7.
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