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)