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Book: Force and Motion in Sports
Author: Glen Phelan
ISBN: 978-0-02-202568-7
Introduction
1. Baseball or softball
Chapter 1: A World of Motion
2. Motion is any change in an object’s position over time.
3. It represents two types of motion, circular and straight line.
4. Humming represents a quick back and forth motion.
5. Velocity is the speed and direction of the object.
6. Acceleration is the rate at which velocity changes.
Chapter 2: Forces Make It Go
7. Force is a push or a pull.
8. Muscles often work in pairs to allow body movement. True
9. When one muscle relaxes, the other muscle pulls on bones to move your body. True
Chapter 3: Invisible Forces
10. Gravity pulls all objects at the same rate. True
11. Any two objects that fall from the same height at the same time will hit the ground at the same time. True
12. Gravity is a force that pulls any two objects together.
13. An object that is thrown that has a combination of a forward push and the downward pull of gravity. Gravity causes the object to follow a curved path.
14. Friction is a force that two objects exert on each other when they touch.
15. Friction makes you go fast. False, friction slows you down.
16. Yes, it does.
17. Air resistance
Conclusion
18. Answers will vary
Book: Force and Motion in Sports
Author: Glen Phelan
ISBN: 978-0-02-202568-7
Introduction
1. Baseball or softball
Chapter 1: A World of Motion
2. Motion is any change in an object’s position over time.
3. It represents two types of motion, circular and straight line.
4. Humming represents a quick back and forth motion.
5. Velocity is the speed and direction of the object.
6. Acceleration is the rate at which velocity changes.
Chapter 2: Forces Make It Go
7. Force is a push or a pull.
8. Muscles often work in pairs to allow body movement. True
9. When one muscle relaxes, the other muscle pulls on bones to move your body. True
Chapter 3: Invisible Forces
10. Gravity pulls all objects at the same rate. True
11. Any two objects that fall from the same height at the same time will hit the ground at the same time. True
12. Gravity is a force that pulls any two objects together.
13. An object that is thrown that has a combination of a forward push and the downward pull of gravity. Gravity causes the object to follow a curved path.
14. Friction is a force that two objects exert on each other when they touch.
15. Friction makes you go fast. False, friction slows you down.
16. Yes, it does.
17. Air resistance
Conclusion
18. Answers will vary
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