Chapter 6

1. Chapter 6

2. This acceleration will cause the particle to 1. Speed up and curve upward. 2. Speed up and curve downward. 3. Slow down and curve upward. 4. Slow down and curve downward. 5. Move to the right and down.

3. This acceleration will cause the particle to 1. Speed up and curve upward. 2. Speed up and curve downward. 3. Slow down and curve upward. 4. Slow down and curve downward. 5. Move to the right and down.

4. The components of this particle’s acceleration are 1. ax > 0, ay > 0. 2. ax = 0, ay > 0. 3. ax < 0, ay > 0. 4. ax > 0, ay < 0. 5. ax < 0, ay < 0.

5. The components of this particle’s acceleration are 1. ax > 0, ay > 0. 2. ax = 0, ay > 0. 3. ax < 0, ay > 0. 4. ax > 0, ay < 0. 5. ax < 0, ay < 0.

6. A 100 g ball rolls off a table and lands 2 m from the base of the table. A 200 g ball rolls off the same table with the same speed. It lands at distance 1. <1 m. 2. 1 m. 3. between 1m and 2 m. 4. 2 m. 5. > 2 m.

7. A 100 g ball rolls off a table and lands 2 m from the base of the table. A 200 g ball rolls off the same table with the same speed. It lands at distance 1. <1 m. 2. 1 m. 3. between 1m and 2 m. 4. 2 m. 5. > 2 m.

8. A plane traveling horizontally to the right at 100 m/s flies past a helicopter that is going straight up at 20 m/s. From the helicopter’s perspective, the plane’s direction and speed are 1. Right and down, more than 100 m/s. 2. Right and up, more than 100 m/s. 3. Right and up, less than 100 m/s. 4. Right and down, less than 100 m/s. 5. Right and down, 100 m/s.

9. A plane traveling horizontally to the right at 100 m/s flies past a helicopter that is going straight up at 20 m/s. From the helicopter’s perspective, the plane’s direction and speed are 1. Right and down, more than 100 m/s. 2. Right and up, more than 100 m/s. 3. Right and up, less than 100 m/s. 4. Right and down, less than 100 m/s. 5. Right and down, 100 m/s.

10. Chapter 6 Reading Quiz

11. A ball is thrown upward at a 45° angle. In the absence of air resistance, the ball follows a 1. tangential curve. 2. parabolic curve. 3. sine curve. 4. linear curve.

12. A ball is thrown upward at a 45° angle. In the absence of air resistance, the ball follows a 1. tangential curve. 2. parabolic curve. 3. sine curve. 4. linear curve.

13. A hunter points his rifle directly at a coconut that he wishes to shoot off a tree. It so happens that the coconut falls from the tree at the exact instant the hunter pulls the trigger. Consequently, 1. the bullet passes above the coconut. 2. the bullet passes beneath the coconut. 3. the bullet hits the coconut. 4. This wasn’t discussed in Chapter 6.

14. A hunter points his rifle directly at a coconut that he wishes to shoot off a tree. It so happens that the coconut falls from the tree at the exact instant the hunter pulls the trigger. Consequently, 1. the bullet passes above the coconut. 2. the bullet passes beneath the coconut. 3. the bullet hits the coconut. 4. This wasn’t discussed in Chapter 6.

15. The statement that “Newton’s laws of motion are valid in all inertial reference frames” is 1. a true statement. 2. Newton’s principle of relativity. 3. the Galilean principle of relativity. 4. Einstein’s principle of relativity.

16. The statement that “Newton’s laws of motion are valid in all inertial reference frames” is 1. a true statement. 2. Newton’s principle of relativity. 3. the Galilean principle of relativity. 4. Einstein’s principle of relativity.