Download presentation

Presentation is loading. Please wait.

Published byDennis Goll Modified over 3 years ago

1
3.3 Hooke’s Law

2
TODAY’s OBJECTIVES To learn about how stretch or compression of a spring varies with gravitational force.

6
x = amount of stretching/compression F = force exerted on an object (F g, F app …)

7
x = amount of stretching/compression F = force exerted on an object (F g, F app …)

8
x = amount of stretching/compression F = force exerted on an object (F g, F app …) k = spring constant

9
Robert Hooke 9 First one to notice this relationship

10
Robert Hooke 10 If too much force is applied and an object is stretched or compressed too much, the direct proportion breaks down!

11
Example 1 11 F app = ?? ∆x = 20 cm = 0.20 m k = 3.2 F app = k · ∆x F app = 3.2 · 0.20 F app = 0.64 N 1.33 N/cm

12
Example 1 12 m = 2.5 kg ∆x = 10 cm = 0.10 m If, m = 5.0 kg ∆x = ??? F g = k · ∆x m · g = k · ∆x 2.5 · 9.8 = k · 0.10 k = 245 N/m F g = 245 · ∆x

13
CLASSWORK Problems: 3.3 Review Problems Page: 97 13

14
HOMEWORK Problems: Chapter 3 Review Questions (# 10) Page: 99 14

15
Chapter 3 TEST Thursday, November 14 15

16
Chapter 3 TEST Problems: Chapter 3 Review Questions (# 1 - 9) Page: 98 - 99 16

17
Laboratory Investigation 3 – 3 Another Way to Weigh 17

Similar presentations

OK

By D. Fisher Geometric Transformations. Reflection, Rotation, or Translation 1.

By D. Fisher Geometric Transformations. Reflection, Rotation, or Translation 1.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on time management for engineering students Ppt on stock market trading Ppt on electronic product design Ppt on religion and science Ppt on needle stick injury pictures Ppt on useful plants and animals as home remedy Ppt on networking related topics about global warming Ppt on earthquake download Ppt on extinct animals of india Ppt on product design