Unit 1 Motion Test

Question 1

13. The horses on a carousel or merry go round are accelerating because?

Answer 1

Answer: the direction of the horses’ moth ion is constantly changing

Reference: concept 2

Question 2

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

Answer 2

Answer: the pony is accelerating.

Reference: concept 1

Question 3

27. Can the velocity of a car change when it’s speed is constant

Answer 3

Answer: yes because velocity is speed and direction, you could be moving at a constant speed but changing direction, thus velocity changes.

Reference: concept 1

Question 4

32. What are three specific ways an object can accelerate

Answer 4

Answers: speed up, slow down, and change direction

Reference: concept 2

Question 5

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

Answer 5

Answer: speed and direction

Reference: concept 1

Question 6

29. Describe the motion of biker A, B and C as shown by the velocity vs time graf 2.

Answer 6

Answer: A= constant speed B= not moving C= constant speed(but slower than part A)

Reference: concept 1

Question 7

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

Answer 7

Answer: 1. Speed up 2. Slow down 3. Change direction

Reference: concept 2

Question 8

33. A person walking covers 5.20 meters in 10.4 s. How fast is the person moving?

Answer 8

Answer: 0.5 m/s

Reference: concept 1

Question 9

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

Answer 9

Answer: 90km

Reference: concept 1

Question 10

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

Answer 10

Answer: a= -6km/hr2

Reference: concept 2

Question 11

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

Answer 11

Answer: write a given

Reference: 5 things you need to have on every problem

Question 12

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

Answer 12

Answer: add your mi

Reference: 5 things you need to have on every problem

Question 13

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 boat an acceleration of 25.2 km/hr2. How long did it take the boat to reach its new speed?

Answer 13

Answer: add given and work

Reference: 5 things you need to have on every problem

Question 14

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

Answer 14

Answer: vf= 15. 8m/s forward

Reference: concept 1