Chapter 5 Review Questions

3. the acceleration would double

4. the acceleration would be cut in half

7. 20000N

9.100N, 100N, 1m/s(squared)

Chapter 5 Questions

1. The same force on twice the mass produces half the acceleration, or 1 m/s(squared).

2. A constant force produces motion at a constant acceleration, accordance with Newton's second law.

Chapter 4 Plug and Chup/ Think and Explain

Plug and Chug

1. 50 N
2. 2000 N
3. 2.5 N , 5.5 lbs.
4. 1Kg , 2.2 lbs
5. 30.591 Kg

Think and Solve

1. Because the pressure of the crash forces the neck to move backthe headrest helps keep it from slamming backwards
2a. It stays in the same place related to the ground
b. It moves toward the back of the wagon when it accelerates

Chapter 3 Plug and Chug

These are the answers to the Chapter 3 Plug and Chug. Click Here

Chapter 2 Plug and Chug/ Think and Explain

Plug and Chug

1. 28m/s
2. 8 Km/h
3. 8 Km
4. 10 Km
5. 15m/s
6. 15m/s(squared)
7. 10m/s , 6m/s , 200m
8. 80 m/s

Think and Explain

1. Because it can change direction
2. 150,000 Km/s
3. The bike4a. 10 m/s
4b. 20 m/s
5. iIncrease with time
6a. 10 m/s
6b. 10 m/s
6c. The same
7. That they are right
8. Velocity-No directionSpeed- 0 m/sBecause velocity is the direction that is is goes and the speed is how fast it is moving

Chapter 2 Review

1. No matter what objects are alway in motion even object at rest are moving around the sin and stars. the environment around us.
2. Speed is the rate thats a object moves
3. If you walk 2 kilo-meters across the room -2Km
4. An instantaneous speed is the speed at any given time . a average speed is the speed during the whole trip divided by the amount of time it takes to complete the trip
5. Instantaneous
6. The difference between speed and velocity is the speed is how fast you go and velocity is how fast in a certain direction
7. No, Because the question does not say anything about the direction of travel
8. Brake and Gas-SpeedSteering wheel- velocity
9. Acceleration
10. The rate of velocity changes
11. 100 Km/h
12. 10 KM/m
13. .03 , .2 , 6
14. Once for the unit of speed and again of the interval of time
15. Object falling only affected by gravity
16. 1/2G (times) T (squared)
17. 125 meters-5 secs 200 meters-6 secs 1/2G(times) T(squared) at the end
18. V=a*t
19. 125 meters , 200 meters
20. 5 meters
21. Depends on the time elapsed
22. Represent relationship between distance and time
23. Represent relationship between time and speed
24. Decrease the acceleration
25. D= 1/2 G(times) T(squared)