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Chapter 5

Lecture Presentation

Applying Newton’s Laws

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Slide 5-2

NEWTON’S LAWOF

UNIVERSAL GRAVITATION

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LEARNING OBJECTIVES

1. Definition of Newton’s Law of Universal

Gravitation

2. The connection between mg and GmM/r^2

3. The Definition of an inverse-square law

4. The relative magnitude of Forces between

celestial bodies and between two persons in the

room

5. Significance of this law in the advancement in

the understanding of our universe

Slide 5-4

DOES THE EQUAL AND OPPOSITE FORCE

UNDERSTANDING APPLY TOVERY BIG OBJECTS, LIKE…

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Slide 5-5

WHAT ABOUT…?

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Slide 5-6

WHAT ABOUT…?

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WHAT ABOUT…?

Slide 5-7

1. DEFINITION OF NEWTON’S LAW OF UNIVERSAL GRAVITATION

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Slide 5-8

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=

Slide 5-9

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WHAT ABOUT…?

=

m1

?

Slide 5-10

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G = 6.673 x 10 -11 N m2/kg 2

Slide 5-11

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Sample Calculation

Slide 5-12

THINKING PROPORTIONALLY

ABOUT NEWTON'S LAW OF UNIVERSAL

GRAVITATION EQUATION

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Slide 5-13

THINKING PROPORTIONALLY

ABOUT NEWTON'S LAW OF UNIVERSAL

GRAVITATION EQUATION

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Slide 5-14

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2. The connection between mg and GmM/r^2

Slide 5-15

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Slide 5-16

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3. The Definition of an inverse-square

law

Slide 5-17

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Slide 5-18

THINKING PROPORTIONALLY

ABOUT NEWTON'S LAW OF UNIVERSAL

GRAVITATION EQUATION

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Slide 5-19

THINKING PROPORTIONALLY

ABOUT NEWTON'S LAW OF UNIVERSAL

GRAVITATION EQUATION

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© 2015 Pearson Education, Inc.

4. The relative magnitude of Forces

between celestial bodies and between

two persons in the room

Slide 5-21

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Sample Calculation

WHAT IS THE HISTORICAL

SIGNIFICANCE OF NEWTON’S LAW OF UNIVERSAL

GRAVITATION ?

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5. Significance of this law in the

advancement in the understanding of our universe

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Newton’s Law of Gravitation was an

ENORMOUS achievement, because

1. It synthesized the laws that govern motion on

Earth and in the heavens.

2. Newton’s work had a profound effect on

philosophical thought. His research implied that

the universe was a rational place that could be

described by universal, scientific laws.