Motion Test

Question 1

4. If you ride your bicycle down a straight road for 500m the turn around and ride back to the starting point, your distance is_____ your displacement.

Answer 1

4. Greater than

U6/C1 - pg.2

Question 2

6. A softball pitcher throws a ball at 42 meters per second. If the batter is 18 meters from the pitcher, approximately how much time does it take the ball to reach the batter?

Answer 2

6. D (.43s.)

U6/C1 - pg. 3

Question 3

20. A group of bike riders took a 4 hour trip. During the first three hours, they traveled a total of 50 km, but during the last hour they traveled only 10 km. What was the group’s average speed for the entire trip?

Answer 3

20. D (15km/hr)

U6/C1 - pg. 3

Question 4

23. Ben it’s excercising his pony on a large, oval track. The pony is trotting at a constant speed of 10 m/s around the track. Which statement can be made about the pony’s motion?

Answer 4

23. D (The pony is accelerating.)

U1/C1 - pg. 5

Question 5

24. The graph to the right represents the motion of four cars on a straight road. Which car has zero acceleration?

Answer 5

24. Car B

U6/C1 - pg. 11

Question 6

25. The velocity of an object must include both a _____ and a _____.

Answer 6

25. Speed and a direction

U6/C1 - pg. 3

Question 7

27. Can the velocity of a car change when it’s speed is constant? Explain why or why not.

Answer 7

27. Yes, because speed and direction. You could be moving at a constant speed but changing direction, this velocity changes.

U6/C1 - pg. 3

Question 8

28. Explain the difference, in relation to speed, between positive and negative acceleration. Sketch and label a graph of each. Be sure to label your axes!!

Answer 8

28. Distance vs. Time graph

U6 - C6/ pg. 5

Question 9

32. What are the 3 specific ways an object can accelerate?

Answer 9

32. 1. Speed up
33. Slow down
34. Change direction

U6/C2 - pg. 11

Question 10

34. A man is riding his 4 wheeler at a 60 km/hr. If he is riding it constantly at this rate for 1.5 hours, how far did he ride?

Answer 10

34. D = 90 km

U6/C1 - pg. 1

Question 11

35. The space shuttle if flying at 2.0 km/hr and ru s on the runway. It then slows down to 0.5 km/hr. If this takes 0.25hrs, what is your acceleration?

Answer 11

35. -6km/hr

U6/C2 - pg. 11

Question 12

36. A car travels west for 240 km in 4 hr. What is the car’s velocity?

Answer 12

36. 60 km/hr west

U6/C1 - pg. 4

Question 13

37. A person walks 3 miles North, turns, and walks 2 miles east. Calculate the person’s distance traveled and their displacement.

Answer 13

37. 3.61 mi. NE

U6/C1 - pg. 4

Question 14

38. A boat is traveling at 43.2 km/hr. It then goes down a faster part of the River and is now going 144 km/hr which gave the an acceleration of 25.2 km/hr2. How long did it take the boat to reach its new speed?

Answer 14

38. 4 hr.

U6/C1 - pg. 3

Question 15

39. A competitive go cart-driver is traveling 32 m/s. He sees a caution flags go up, so he slows down at a rate of -1.5 m/s2 in 10.8s, what is the final velocity?

Answer 15

39. Vf = 15.8 m/s forwards

U6/C1 - pg. 4