Chapter 3 Newton’s First Law of Motion HW 8, 10-13, 16-17, 20-22.
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Transcript of Chapter 3 Newton’s First Law of Motion HW 8, 10-13, 16-17, 20-22.
![Page 1: Chapter 3 Newton’s First Law of Motion HW 8, 10-13, 16-17, 20-22.](https://reader036.fdocuments.us/reader036/viewer/2022082709/56649cf55503460f949c4ad7/html5/thumbnails/1.jpg)
Chapter 3
Newton’s First Law of Motion
HW 8, 10-13, 16-17, 20-22
![Page 2: Chapter 3 Newton’s First Law of Motion HW 8, 10-13, 16-17, 20-22.](https://reader036.fdocuments.us/reader036/viewer/2022082709/56649cf55503460f949c4ad7/html5/thumbnails/2.jpg)
8. What name is given to the property of an object to resist changes in motion?
Inertia
![Page 3: Chapter 3 Newton’s First Law of Motion HW 8, 10-13, 16-17, 20-22.](https://reader036.fdocuments.us/reader036/viewer/2022082709/56649cf55503460f949c4ad7/html5/thumbnails/3.jpg)
10. What is the tendency of an object at rest when no forces act on it?
To remain at rest.
![Page 4: Chapter 3 Newton’s First Law of Motion HW 8, 10-13, 16-17, 20-22.](https://reader036.fdocuments.us/reader036/viewer/2022082709/56649cf55503460f949c4ad7/html5/thumbnails/4.jpg)
11. What is the tendency of a moving object when
no forces act on it?
To continue moving in a straight line at a constant speed indefinitely.
![Page 5: Chapter 3 Newton’s First Law of Motion HW 8, 10-13, 16-17, 20-22.](https://reader036.fdocuments.us/reader036/viewer/2022082709/56649cf55503460f949c4ad7/html5/thumbnails/5.jpg)
12. What relationship does mass have with inertia?
Mass is a measure of inertia; the more mass an object has, the more inertia it has.
![Page 6: Chapter 3 Newton’s First Law of Motion HW 8, 10-13, 16-17, 20-22.](https://reader036.fdocuments.us/reader036/viewer/2022082709/56649cf55503460f949c4ad7/html5/thumbnails/6.jpg)
13. What does it mean to say mass and weight are proportional to each other?
If one increase or decreases, the other changes in the same way.
1 kg to 10 kg
2.2 pounds to 20.2 pounds
![Page 7: Chapter 3 Newton’s First Law of Motion HW 8, 10-13, 16-17, 20-22.](https://reader036.fdocuments.us/reader036/viewer/2022082709/56649cf55503460f949c4ad7/html5/thumbnails/7.jpg)
16. What is the standard (or SI) unit for mass?17. What is the standard (or SI) unit for weight?
For mass it is kilograms (kg) For weight it is newtons (N)
![Page 8: Chapter 3 Newton’s First Law of Motion HW 8, 10-13, 16-17, 20-22.](https://reader036.fdocuments.us/reader036/viewer/2022082709/56649cf55503460f949c4ad7/html5/thumbnails/8.jpg)
20. If you’re in a smooth-riding bus that is going at 40 km/h, and you flip a coin vertically, how fast does the coin move horizontally while in midair?
The coin’s horizontal speed is the same as the speed of the bus, 40 km/h, which is the same speed for you, as well.
![Page 9: Chapter 3 Newton’s First Law of Motion HW 8, 10-13, 16-17, 20-22.](https://reader036.fdocuments.us/reader036/viewer/2022082709/56649cf55503460f949c4ad7/html5/thumbnails/9.jpg)
21
21. a. Greatest to least resistance to change
in motion BACD b. Greatest to least weight BACD c. greatest to least normal support BACD
![Page 10: Chapter 3 Newton’s First Law of Motion HW 8, 10-13, 16-17, 20-22.](https://reader036.fdocuments.us/reader036/viewer/2022082709/56649cf55503460f949c4ad7/html5/thumbnails/10.jpg)
22
22. a. Greatest to least force required to
keep them going A=B=C (no force) b. Greatest to least force required to stop
them in the same time interval CBA