User:Guy vandegrift/Quizbank/Archive1/Calculus Physics I/T1study

CalcPhys1T1_Study

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This document contains either a study guide OR pairs of exams taken from the same exam bank
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CalcPhys1T1_Study-v1s1

1. A car traveling at 54 miles/hour stops in 5.2 seconds. What is the average acceleration?

___a) 4.64 x 100 m/s2
___b) 8.26 x 100 m/s2
___c) 1.47 x 101 m/s2
___d) 2.61 x 101 m/s2
___e) 4.64 x 101 m/s2

2. A car completes a complete circle of radius 2.6 miles at a speed of 63.7 miles per hour. How many minutes does it take?

___a) 8.65 x 100 minutes
___b) 1.15 x 101 minutes
___c) 1.54 x 101 minutes
___d) 2.05 x 101 minutes
___e) 2.74 x 101 minutes

3. A car traveling at 33.2 mph increases its speed to 35.8 mph in 4.9 seconds. What is the average acceleration?

___a) 1.33 x 10-1 m/s2
___b) 2.37 x 10-1 m/s2
___c) 4.22 x 10-1 m/s2
___d) 7.5 x 10-1 m/s2
___e) 1.33 x 100 m/s2

4. Mr. Smith is backing his car at a speed of 2.42 mph when he hits a cornfield (seed corn). In the course of 2.35 seconds he stops, puts his car in forward drive, and exits the field at a speed of 6.1 mph. What was the magnitude ( absolute value) of his acceleration?

___a) 2.29 x 100 miles per hour per second
___b) 2.88 x 100 miles per hour per second
___c) 3.63 x 100 miles per hour per second
___d) 4.56 x 100 miles per hour per second
___e) 5.75 x 100 miles per hour per second

5. A car is accelerating uniformly at an acceleration of 3.8m/s/s. At x = 4.5m, the speed is 3.6m/s. How fast is it moving at x = 11.5 m?

___a) 8.13 m/s.
___b) 9.76 m/s.
___c) 11.71 m/s.
___d) 14.06 m/s.
___e) 16.87 m/s.

6. What is the acceleration if a car travelling at 8.45 m/s makes a skid mark that is 8.5 m long before coming to rest? (Assume uniform acceleration.)

___a) 2.43m/s2.
___b) 2.92m/s2.
___c) 3.5m/s2.
___d) 4.2m/s2.
___e) 5.04m/s2.

7. A train accelerates uniformly from 9.75 m/s to 26.875 m/s, while travelling a distance of 371 m. What is the 'average' acceleration?

___a) 0.85m/s/s.
___b) 1.01m/s/s.
___c) 1.22m/s/s.
___d) 1.46m/s/s.
___e) 1.75m/s/s.

8. A particle accelerates uniformly at 12.5 m/s/s. How long does it take for the velocity to increase from 968 m/s to 1883 m/s?

___a) 42.36 s
___b) 50.83 s
___c) 61 s
___d) 73.2 s
___e) 87.84 s

9. Mr. Smith starts from rest and accelerates to 4 m/s in 3 seconds. How far did he travel?

___ a) 5.0 meters
___ b) 7.0 meters
___ c) 3.0 meters
___ d) 6.0 meters
___ e) 4.0 meters

10. Mr. Smith starts from rest and accelerates to 4 m/s in 5 seconds. How far did he travel?

___ a) 9.0 meters
___ b) 8.0 meters
___ c) 7.0 meters
___ d) 10.0 meters
___ e) 11.0 meters

11. Mr. Smith is driving at a speed of 7 m/s, when he slows down to a speed of 5 m/s, when he hits a wall at this speed, after travelling for 2 seconds. How far did he travel?

___ a) 10.0 meters
___ b) 9.0 meters
___ c) 12.0 meters
___ d) 11.0 meters
___ e) 8.0 meters

12. Mr. Smith starts at rest and accelerates to a speed of 2 m/s, in 2 seconds. He then travels at this speed for an additional 1 seconds. Then he decelerates uniformly, taking 2 seconds to come to rest. How far did he travel?

___ a) 9.0 meters
___ b) 6.0 meters
___ c) 8.0 meters
___ d) 7.0 meters
___ e) 5.0 meters

13. Mr. Smith is driving at a speed of 4 m/s, when he slows down to a speed of 1 m/s, when he hits a wall at this speed, after travelling for 4 seconds. How far did he travel?

___ a) 8.0 meters
___ b) 9.0 meters
___ c) 11.0 meters
___ d) 10.0 meters
___ e) 7.0 meters

14. Mr. Smith starts at rest and accelerates to a speed of 4 m/s, in 2 seconds. He then travels at this speed for an additional 3 seconds. Then he decelerates uniformly, taking 2 seconds to come to rest. How far did he travel?

___ a) 19.0 meters
___ b) 20.0 meters
___ c) 21.0 meters
___ d) 23.0 meters
___ e) 22.0 meters

15. Mr. Smith starts from rest and accelerates to 2 m/s in 3 seconds. How far did he travel?

___ a) 5.0 meters
___ b) 4.0 meters
___ c) 3.0 meters
___ d) 7.0 meters
___ e) 6.0 meters

16. Mr. Smith is driving at a speed of 5 m/s, when he slows down to a speed of 4 m/s, when he hits a wall at this speed, after travelling for 2 seconds. How far did he travel?

___ a) 9.0 meters
___ b) 8.0 meters
___ c) 10.0 meters
___ d) 11.0 meters
___ e) 12.0 meters

17. Mr. Smith starts at rest and accelerates to a speed of 2 m/s, in 6 seconds. He then travels at this speed for an additional 3 seconds. Then he decelerates uniformly, taking 4 seconds to come to rest. How far did he travel?

___ a) 19.0 meters
___ b) 18.0 meters
___ c) 20.0 meters
___ d) 17.0 meters
___ e) 16.0 meters

18. Mr. Smith starts from rest and accelerates to 3 m/s in 2 seconds. How far did he travel?

___ a) 1.0 meters
___ b) 2.0 meters
___ c) 5.0 meters
___ d) 3.0 meters
___ e) 4.0 meters

19. Mr. Smith is driving at a speed of 7 m/s, when he slows down to a speed of 5 m/s, when he hits a wall at this speed, after travelling for 4 seconds. How far did he travel?

___ a) 25.0 meters
___ b) 24.0 meters
___ c) 27.0 meters
___ d) 23.0 meters
___ e) 26.0 meters

20. Mr. Smith starts at rest and accelerates to a speed of 2 m/s, in 6 seconds. He then travels at this speed for an additional 3 seconds. Then he decelerates uniformly, taking 4 seconds to come to rest. How far did he travel?

___ a) 14.0 meters
___ b) 16.0 meters
___ c) 17.0 meters
___ d) 15.0 meters
___ e) 13.0 meters

21. A ball is kicked horizontally from a height of 3 m, at a speed of 10m/s. How far does it travel before landing?

___a) 6.52 m.
___b) 7.82 m.
___c) 9.39 m.
___d) 11.27 m.
___e) 13.52 m.

22. A particle is initially at the origin and moving in the x direction at a speed of 4 m/s. It has an constant acceleration of 1.8 m/s2 in the y direction, as well as an acceleration of 0.6 in the x direction. What angle does the velocity make with the x axis at time t = 2.7 s?

___a) 40.85 degrees.
___b) 46.98 degrees.
___c) 54.03 degrees.
___d) 62.13 degrees.
___e) 71.45 degrees.

23. At time, t=0, two particles are on the x axis. Particle A is (initially) at the origin and moves at a constant speed of 6.54 m/s at an angle of θ above the x-axis. Particle B is initially situated at x= 2.91 m, and moves at a constant speed of 2.42 m/s in the +y direction. At what time do they meet?

___a) 0.48 s.
___b) 0.57 s.
___c) 0.69 s.
___d) 0.83 s.
___e) 0.99 s.

24. At time, t=0, two particles are on the x axis. Particle A is (initially) at the origin and moves at a constant speed of 5.19 m/s at an angle of θ above the x-axis. Particle B is initially situated at x= 2.76 m, and moves at a constant speed of 2.86 m/s in the +y direction. What is the value of θ (in radians)?

25. The Smith family is having fun on a high speed train travelling at 47.6 m/s. Mr. Smith is at the back of the train and fires a pellet gun with a muzzle speed of 23.3 m/s at Mrs. Smith who is at the front of the train. What is the speed of the bullet with respect to Earth?

___a) 70.9 m/s.
___b) 106.4 m/s.
___c) 159.5 m/s.
___d) 239.3 m/s.
___e) 358.9 m/s.

26. The Smith family is having fun on a high speed train travelling at 47.1 m/s. Mrs. Smith, who is at the front of the train, fires straight towards the back with a bullet that is going forward with respect to Earth at a speed of 24.4 m/s. What was the muzzle speed of her bullet?

___a) 6.7 m/s.
___b) 10.1 m/s.
___c) 15.1 m/s.
___d) 22.7 m/s.
___e) 34.1 m/s.

27. The Smith family is having fun on a high speed train travelling at 47.6 m/s. The daugher fires at Mr. Smith with a pellet gun whose muzzle speed is 23.8 m/s. She was situated across the isle, perpendicular to the length of the train. What is the speed of her bullet with respect to Earth?

___a) 10.5 m/s.
___b) 15.8 m/s.
___c) 23.7 m/s.
___d) 35.5 m/s.
___e) 53.2 m/s.

28. The Smith family got in trouble for having fun on a high speed train travelling at 47.5 m/s. Mr. Smith is charged with having fired a pellet gun at his daughter (directly across the isle) with a bullet that had a speed of 94.6 m/s with respect to Earth. How fast was the bullet going relative to the daughter (i.e. train)?

___a) 81.8 m/s.
___b) 98.2 m/s.
___c) 117.8 m/s.
___d) 141.4 m/s.
___e) 169.6 m/s.

29. When a table cloth is quickly pulled out from under dishes, they hardly move. This is because

___ a) objects don't begin to accelerate until after the force has been applied
___ b) the cloth is more slippery when it is pulled quickly
___ c) the cloth is accelerating for such a brief time that there is little motion

30. If you toss a coin into the air, the acceleration while it as its highest point is

___ a) up
___ b) zero
___ c) down

31. If you toss a coin into the air, the velocity on the way up is

___ a) up
___ b) zero
___ c) down

32. If you toss a coin into the air, the velocity on the way down is

___ a) up
___ b) down
___ c) zero

33. If you toss a coin into the air, the velocity while it as its highest point is

___ a) zero
___ b) down
___ c) up

34. A car is headed due north and increasing its speed. It is also turning left because it is also traveling in a perfect circle. The acceleration vector points

___ a) southwest
___ b) north
___ c) northeast
___ d) south
___ e) northwest

35. A car is headed due north and increasing its speed. It is also turning right because it is also traveling in a perfect circle. The acceleration vector points

___ a) north
___ b) northwest
___ c) south
___ d) northeast
___ e) southwest

36. A car is headed due north and increasing its speed. It is also turning left because it is also traveling in a perfect circle. The velocity vector points

___ a) southeast
___ b) northeast
___ c) north
___ d) northwest
___ e) northeast

37. A car is headed due north and increasing its speed. It is also turning right because it is also traveling in a perfect circle. The velocity vector points

___ a) northwest
___ b) south
___ c) north
___ d) northeast
___ e) southwest

38. A car is headed due north and decreasing its speed. It is also turning left because it is also traveling in a perfect circle. The acceleration vector points

___ a) south
___ b) southeast
___ c) southwest
___ d) west
___ e) northwest

39. A car is headed due north and decreasing its speed. It is also turning right because it is also traveling in a perfect circle. The acceleration vector points

___ a) northwest
___ b) southeast
___ c) south
___ d) north
___ e) northeast

40. A car is traveling west and slowing down. The acceleration is

___ a) to the east
___ b) zero
___ c) to the west

41. A car is traveling east and slowing down. The acceleration is

___ a) to the west
___ b) zero
___ c) to the east

42. A car is traveling east and speeding up. The acceleration is

___ a) to the east
___ b) zero
___ c) to the west

43. If you toss a coin into the air, the acceleration on the way up is

___ a) down
___ b) up
___ c) zero

44. A car is traveling in a perfect circle at constant speed. If the car is headed north while turning west, the acceleration is

___ a) east
___ b) west
___ c) zero
___ d) south
___ e) north

45. A car is traveling in a perfect circle at constant speed. If the car is headed north while turning east, the acceleration is

___ a) south
___ b) north
___ c) zero
___ d) east
___ e) west

46. As the Moon circles Earth, the acceleration of the Moon is

___ a) away from Earth
___ b) towards Earth
___ c) zero
___ d) in the same direction as the Moon's velocity
___ e) opposite the direction of the Moon's velocity

47. If you toss a coin into the air, the acceleration on the way down is

___ a) up
___ b) zero
___ c) down

Key to CalcPhys1T1_Study-v1s1

1. A car traveling at 54 miles/hour stops in 5.2 seconds. What is the average acceleration?

+a) 4.64 x 100 m/s2
-b) 8.26 x 100 m/s2
-c) 1.47 x 101 m/s2
-d) 2.61 x 101 m/s2
-e) 4.64 x 101 m/s2

2. A car completes a complete circle of radius 2.6 miles at a speed of 63.7 miles per hour. How many minutes does it take?

-a) 8.65 x 100 minutes
-b) 1.15 x 101 minutes
+c) 1.54 x 101 minutes
-d) 2.05 x 101 minutes
-e) 2.74 x 101 minutes

3. A car traveling at 33.2 mph increases its speed to 35.8 mph in 4.9 seconds. What is the average acceleration?

-a) 1.33 x 10-1 m/s2
+b) 2.37 x 10-1 m/s2
-c) 4.22 x 10-1 m/s2
-d) 7.5 x 10-1 m/s2
-e) 1.33 x 100 m/s2

4. Mr. Smith is backing his car at a speed of 2.42 mph when he hits a cornfield (seed corn). In the course of 2.35 seconds he stops, puts his car in forward drive, and exits the field at a speed of 6.1 mph. What was the magnitude ( absolute value) of his acceleration?

-a) 2.29 x 100 miles per hour per second
-b) 2.88 x 100 miles per hour per second
+c) 3.63 x 100 miles per hour per second
-d) 4.56 x 100 miles per hour per second
-e) 5.75 x 100 miles per hour per second

5. A car is accelerating uniformly at an acceleration of 3.8m/s/s. At x = 4.5m, the speed is 3.6m/s. How fast is it moving at x = 11.5 m?

+a) 8.13 m/s.
-b) 9.76 m/s.
-c) 11.71 m/s.
-d) 14.06 m/s.
-e) 16.87 m/s.

6. What is the acceleration if a car travelling at 8.45 m/s makes a skid mark that is 8.5 m long before coming to rest? (Assume uniform acceleration.)

-a) 2.43m/s2.
-b) 2.92m/s2.
-c) 3.5m/s2.
+d) 4.2m/s2.
-e) 5.04m/s2.

7. A train accelerates uniformly from 9.75 m/s to 26.875 m/s, while travelling a distance of 371 m. What is the 'average' acceleration?

+a) 0.85m/s/s.
-b) 1.01m/s/s.
-c) 1.22m/s/s.
-d) 1.46m/s/s.
-e) 1.75m/s/s.

8. A particle accelerates uniformly at 12.5 m/s/s. How long does it take for the velocity to increase from 968 m/s to 1883 m/s?

-a) 42.36 s
-b) 50.83 s
-c) 61 s
+d) 73.2 s
-e) 87.84 s

9. Mr. Smith starts from rest and accelerates to 4 m/s in 3 seconds. How far did he travel?

- a) 5.0 meters
- b) 7.0 meters
- c) 3.0 meters
+ d) 6.0 meters
- e) 4.0 meters

10. Mr. Smith starts from rest and accelerates to 4 m/s in 5 seconds. How far did he travel?

- a) 9.0 meters
- b) 8.0 meters
- c) 7.0 meters
+ d) 10.0 meters
- e) 11.0 meters

11. Mr. Smith is driving at a speed of 7 m/s, when he slows down to a speed of 5 m/s, when he hits a wall at this speed, after travelling for 2 seconds. How far did he travel?

- a) 10.0 meters
- b) 9.0 meters
+ c) 12.0 meters
- d) 11.0 meters
- e) 8.0 meters

12. Mr. Smith starts at rest and accelerates to a speed of 2 m/s, in 2 seconds. He then travels at this speed for an additional 1 seconds. Then he decelerates uniformly, taking 2 seconds to come to rest. How far did he travel?

- a) 9.0 meters
+ b) 6.0 meters
- c) 8.0 meters
- d) 7.0 meters
- e) 5.0 meters

13. Mr. Smith is driving at a speed of 4 m/s, when he slows down to a speed of 1 m/s, when he hits a wall at this speed, after travelling for 4 seconds. How far did he travel?

- a) 8.0 meters
- b) 9.0 meters
- c) 11.0 meters
+ d) 10.0 meters
- e) 7.0 meters

14. Mr. Smith starts at rest and accelerates to a speed of 4 m/s, in 2 seconds. He then travels at this speed for an additional 3 seconds. Then he decelerates uniformly, taking 2 seconds to come to rest. How far did he travel?

- a) 19.0 meters
+ b) 20.0 meters
- c) 21.0 meters
- d) 23.0 meters
- e) 22.0 meters

15. Mr. Smith starts from rest and accelerates to 2 m/s in 3 seconds. How far did he travel?

- a) 5.0 meters
- b) 4.0 meters
+ c) 3.0 meters
- d) 7.0 meters
- e) 6.0 meters

16. Mr. Smith is driving at a speed of 5 m/s, when he slows down to a speed of 4 m/s, when he hits a wall at this speed, after travelling for 2 seconds. How far did he travel?

+ a) 9.0 meters
- b) 8.0 meters
- c) 10.0 meters
- d) 11.0 meters
- e) 12.0 meters

17. Mr. Smith starts at rest and accelerates to a speed of 2 m/s, in 6 seconds. He then travels at this speed for an additional 3 seconds. Then he decelerates uniformly, taking 4 seconds to come to rest. How far did he travel?

- a) 19.0 meters
- b) 18.0 meters
- c) 20.0 meters
- d) 17.0 meters
+ e) 16.0 meters

18. Mr. Smith starts from rest and accelerates to 3 m/s in 2 seconds. How far did he travel?

- a) 1.0 meters
- b) 2.0 meters
- c) 5.0 meters
+ d) 3.0 meters
- e) 4.0 meters

19. Mr. Smith is driving at a speed of 7 m/s, when he slows down to a speed of 5 m/s, when he hits a wall at this speed, after travelling for 4 seconds. How far did he travel?

- a) 25.0 meters
+ b) 24.0 meters
- c) 27.0 meters
- d) 23.0 meters
- e) 26.0 meters

20. Mr. Smith starts at rest and accelerates to a speed of 2 m/s, in 6 seconds. He then travels at this speed for an additional 3 seconds. Then he decelerates uniformly, taking 4 seconds to come to rest. How far did he travel?

- a) 14.0 meters
+ b) 16.0 meters
- c) 17.0 meters
- d) 15.0 meters
- e) 13.0 meters

21. A ball is kicked horizontally from a height of 3 m, at a speed of 10m/s. How far does it travel before landing?

-a) 6.52 m.
+b) 7.82 m.
-c) 9.39 m.
-d) 11.27 m.
-e) 13.52 m.

22. A particle is initially at the origin and moving in the x direction at a speed of 4 m/s. It has an constant acceleration of 1.8 m/s2 in the y direction, as well as an acceleration of 0.6 in the x direction. What angle does the velocity make with the x axis at time t = 2.7 s?

+a) 40.85 degrees.
-b) 46.98 degrees.
-c) 54.03 degrees.
-d) 62.13 degrees.
-e) 71.45 degrees.

23. At time, t=0, two particles are on the x axis. Particle A is (initially) at the origin and moves at a constant speed of 6.54 m/s at an angle of θ above the x-axis. Particle B is initially situated at x= 2.91 m, and moves at a constant speed of 2.42 m/s in the +y direction. At what time do they meet?

+a) 0.48 s.
-b) 0.57 s.
-c) 0.69 s.
-d) 0.83 s.
-e) 0.99 s.

24. At time, t=0, two particles are on the x axis. Particle A is (initially) at the origin and moves at a constant speed of 5.19 m/s at an angle of θ above the x-axis. Particle B is initially situated at x= 2.76 m, and moves at a constant speed of 2.86 m/s in the +y direction. What is the value of θ (in radians)?

25. The Smith family is having fun on a high speed train travelling at 47.6 m/s. Mr. Smith is at the back of the train and fires a pellet gun with a muzzle speed of 23.3 m/s at Mrs. Smith who is at the front of the train. What is the speed of the bullet with respect to Earth?

+a) 70.9 m/s.
-b) 106.4 m/s.
-c) 159.5 m/s.
-d) 239.3 m/s.
-e) 358.9 m/s.

26. The Smith family is having fun on a high speed train travelling at 47.1 m/s. Mrs. Smith, who is at the front of the train, fires straight towards the back with a bullet that is going forward with respect to Earth at a speed of 24.4 m/s. What was the muzzle speed of her bullet?

-a) 6.7 m/s.
-b) 10.1 m/s.
-c) 15.1 m/s.
+d) 22.7 m/s.
-e) 34.1 m/s.

27. The Smith family is having fun on a high speed train travelling at 47.6 m/s. The daugher fires at Mr. Smith with a pellet gun whose muzzle speed is 23.8 m/s. She was situated across the isle, perpendicular to the length of the train. What is the speed of her bullet with respect to Earth?

-a) 10.5 m/s.
-b) 15.8 m/s.
-c) 23.7 m/s.
-d) 35.5 m/s.
+e) 53.2 m/s.

28. The Smith family got in trouble for having fun on a high speed train travelling at 47.5 m/s. Mr. Smith is charged with having fired a pellet gun at his daughter (directly across the isle) with a bullet that had a speed of 94.6 m/s with respect to Earth. How fast was the bullet going relative to the daughter (i.e. train)?

+a) 81.8 m/s.
-b) 98.2 m/s.
-c) 117.8 m/s.
-d) 141.4 m/s.
-e) 169.6 m/s.

29. When a table cloth is quickly pulled out from under dishes, they hardly move. This is because

- a) objects don't begin to accelerate until after the force has been applied
- b) the cloth is more slippery when it is pulled quickly
+ c) the cloth is accelerating for such a brief time that there is little motion

30. If you toss a coin into the air, the acceleration while it as its highest point is

- a) up
- b) zero
+ c) down

31. If you toss a coin into the air, the velocity on the way up is

+ a) up
- b) zero
- c) down

32. If you toss a coin into the air, the velocity on the way down is

- a) up
+ b) down
- c) zero

33. If you toss a coin into the air, the velocity while it as its highest point is

+ a) zero
- b) down
- c) up

34. A car is headed due north and increasing its speed. It is also turning left because it is also traveling in a perfect circle. The acceleration vector points

- a) southwest
- b) north
- c) northeast
- d) south
+ e) northwest

35. A car is headed due north and increasing its speed. It is also turning right because it is also traveling in a perfect circle. The acceleration vector points

- a) north
- b) northwest
- c) south
+ d) northeast
- e) southwest

36. A car is headed due north and increasing its speed. It is also turning left because it is also traveling in a perfect circle. The velocity vector points

- a) southeast
- b) northeast
+ c) north
- d) northwest
- e) northeast

37. A car is headed due north and increasing its speed. It is also turning right because it is also traveling in a perfect circle. The velocity vector points

- a) northwest
- b) south
+ c) north
- d) northeast
- e) southwest

38. A car is headed due north and decreasing its speed. It is also turning left because it is also traveling in a perfect circle. The acceleration vector points

- a) south
- b) southeast
+ c) southwest
- d) west
- e) northwest

39. A car is headed due north and decreasing its speed. It is also turning right because it is also traveling in a perfect circle. The acceleration vector points

- a) northwest
+ b) southeast
- c) south
- d) north
- e) northeast

40. A car is traveling west and slowing down. The acceleration is

+ a) to the east
- b) zero
- c) to the west

41. A car is traveling east and slowing down. The acceleration is

+ a) to the west
- b) zero
- c) to the east

42. A car is traveling east and speeding up. The acceleration is

+ a) to the east
- b) zero
- c) to the west

43. If you toss a coin into the air, the acceleration on the way up is

+ a) down
- b) up
- c) zero

44. A car is traveling in a perfect circle at constant speed. If the car is headed north while turning west, the acceleration is

- a) east
+ b) west
- c) zero
- d) south
- e) north

45. A car is traveling in a perfect circle at constant speed. If the car is headed north while turning east, the acceleration is

- a) south
- b) north
- c) zero
+ d) east
- e) west

46. As the Moon circles Earth, the acceleration of the Moon is

- a) away from Earth
+ b) towards Earth
- c) zero
- d) in the same direction as the Moon's velocity
- e) opposite the direction of the Moon's velocity

47. If you toss a coin into the air, the acceleration on the way down is

- a) up
- b) zero
+ c) down

Attribution (for quiz questions) under CC-by-SA license
http://en.wikiversity.org/w/index.php?title=Physics_equations/18-Electric_charge_and_field/Q:findE&oldid=1378605
http://en.wikiversity.org/w/index.php?title=How_things_work_college_course/Motion_simple_arithmetic&oldid=1395847
http://en.wikiversity.org/w/index.php?title=How_things_work_college_course/Conceptual_physics_wikiquizzes/Velocity_and_acceleration&oldid=137851
Study guide
http://en.wikiversity.org/wiki/Physics_equations/Sheet/All_chapters
http://en.wikiversity.org/w/index.php?title=Physics_equations/Sheet/All_chapters&oldid=1283423
http://en.wikibooks.org/w/index.php?title=Physics_Study_Guide&oldid=2516212