Motion Forces Practice Test

1. Motion Forces Practice Test

2. Directions Multiple Choice Section • Choose the choice which best completes the following statements or answers the following questions. • Write the answer on your paper

3. 1.   The basic SI (metric) unit of length is the   (1.)  yard.  (2.)  foot.  (3.) meter.  (4.) mile.

4. 1.   The basic SI (metric) unit of length is the   (1.)  yard.  (2.)  foot.  (3.) meter.  (4.) mile.

5. 2.   An object is in motion when it changes position relative to   (1.) the observer. (2.) the sun. (3.) Earth's surface.  (4.) a reference point.

6. 2.   An object is in motion when it changes position relative to   (1.) the observer. (2.) the sun. (3.) Earth's surface.  (4.) a reference point.

7. 3.    The unit for _____ is m/s.   (1.) weight   (2.) acceleration   (3.) inertia  (4.) velocity

8. 3.    The unit for _____ is m/s.   (1.) weight   (2.) acceleration   (3.) inertia  (4.) velocity

9. 4.   The unit for _____ is m/s/s. (1.)  weight   (2.) acceleration   (3.) inertia   (4.) velocity

10. 4.   The unit for _____ is m/s/s. (1.)  weight   (2.) acceleration   (3.) inertia   (4.) velocity

11. 5.   A constant velocity means acceleration is  (1.) positive   (2.) negative   (3.) increasing (4.) zero

12. 5.   A constant velocity means acceleration is  (1.) positive   (2.) negative   (3.) increasing (4.) zero

13. 6.   If a car's velocity changes from 0 m/s to 40 m/s 10 seconds later, its average acceleration is *Use your formula (1.) 1 m/s/s (2.) 4 m/s/s  (3.) 10 m/s/s  (4.) 20 m/s/s 

14. 6.   If a car's velocity changes from 0 m/s to 40 m/s 10 seconds later, its average acceleration is (1.) 1 m/s/s (2.) 4 m/s/s (3.) 10 m/s/s  (4.) 20 m/s/s 

15. 7.   To skate 100 m in 25 s, a skater must skate at an average speed of (1.) 2 m/s   (2.)  4 m/s   (3.) 5 m/s   (4.) 10 m/s

16. 7.   To skate 100 m in 25 s, a skater must skate at an average speed of (1.) 2 m/s   (2.)  4 m/s   (3.) 5 m/s   (4.) 10 m/s

17. 8.    A body accelerates if it   (1.) speeds up   (2.) slows down   (3.) changes direction (4.) all of these

18. 8.    A body accelerates if it   (1.) speeds up   (2.) slows down   (3.) changes direction (4.) all of these

19. 9.    Our most common frame of reference is the       (1.) Earth    (2.) moon    (3.) sun     (4.) atmosphere

20. 9.    Our most common frame of reference is the       (1.) Earth (2.) moon    (3.) sun     (4.) atmosphere

21. 10.  To skate 80 m in 20 s, a skater must skate at an average speed of  (1.) 2 m/s (2.) 4 m/s   (3.) 5 m/s    (4.) 10 m/s

22. 10.  To skate 80 m in 20 s, a skater must skate at an average speed of  (1.) 2 m/s (2.) 4 m/s   (3.) 5 m/s    (4.) 10 m/s

23. 11.  If a car's velocity changes from 0 m/s to 30 m/s in 10 seconds, its average acceleration is (1.) 1 m/s2    (2.) 10 m/s2    (3.) 3 m/s2    (4.) 20 m/s2

24. 11.  If a car's velocity changes from 0 m/s to 30 m/s in 10 seconds, its average acceleration is (1.) 1 m/s2    (2.) 10 m/s2    (3.) 3 m/s2   (4.) 20 m/s2

25. 12.  Motion can be best described as a change in  (1.) velocity   (2.) acceleration (3.) speed   (4.)  position

26. 12.  Motion can be best described as a change in  (1.) velocity   (2.) acceleration (3.) speed   (4.)  position

27. 13.  Any change over time is called a(n)  (1.) rate    (2.) period   (3.) average   (4.) constant

28. 13.  Any change over time is called a(n)  (1.) rate (2.) period   (3.) average   (4.) constant

29. 14.  Velocity describes both ______ and _______ of an object.   (1.) speed and force (2.) speed and direction   (3.) acceleration and speed   (4.) speed and distance

30. 14.  Velocity describes both ______ and _______ of an object.   (1.) speed and force (2.) speed and direction (3.) acceleration and speed   (4.) speed and distance

31. 15.  Which the correct relationship between speed and distance? (1.)  Speed = Distance x Time (2.)  Speed = Time x Distance (3.)  Speed = Distance / Time     (4.)  Speed = Time / Distance

32. 15.  Which the correct relationship between speed and distance? (1.)  Speed = Distance x Time (2.)  Speed = Time x Distance (3.)  Speed = Distance / Time (4.)  Speed = Time / Distance

33. 16.  To calculate average speed, you need to (1.)  the total distance traveled.    (2.) the total time to make the trip. (3.)  the total time, speed of travel, and direction of travel. (4.)  the total distance traveled and the total time.

34. 16.  To calculate average speed, you need to (1.)  the total distance traveled.    (2.) the total time to make the trip. (3.)  the total time, speed of travel, and direction of travel. (4.)  the total distance traveled and the total time.

35. 17.  To determine the velocity of a moving object, you need to know both its speed and its (1.) distance traveled.  (2.) acceleration.  (3.) direction of motion.  (4.) time of travel.

36. 17.  To determine the velocity of a moving object, you need to know both its speed and its (1.) distance traveled.  (2.) acceleration.  (3.) direction of motion. (4.) time of travel.

37. 18.  A Ferris wheel moving at constant speed is accelerating because the (1.)  direction is always changing.   (2.) wheel moves relative to the ground. (3.)  wheel moves relative to the sun.    (4.) the average speed does not change.

38. 18.  A Ferris wheel moving at constant speed is accelerating because the (1.)  direction is always changing.  (2.) wheel moves relative to the ground. (3.)  wheel moves relative to the sun.    (4.) the average speed does not change.

39. 19.  Which statement is correct? (1.) Velocity is acceleration divided by time. (2.) Acceleration is a change in rate of speed (3.) Acceleration is distance divided by time. (4.) Velocity to be properly calculated needs to be only given a numerical value.

40. 19.  Which statement is correct? (1.) Velocity is acceleration divided by time. (2.) Acceleration is a change in rate of speed (3.) Acceleration is distance divided by time. (4.) Velocity to be properly calculated needs to be only given a numerical value.

41. 20.  To calculate acceleration, you need to know the  (1.) final velocity and total time. (2.) initial velocity and total time.  (3.) final velocity and initial velocity. (4.) final velocity, initial velocity, and the total time.

42. 20.  To calculate acceleration, you need to know the  (1.) final velocity and total time. (2.) initial velocity and total time.  (3.) final velocity and initial velocity. (4.) final velocity, initial velocity, and the total time.

43. 21.  The acceleration of an object depends upon the mass of the object and  (1.) its momentum (2.) its weight (3.) the force applied to it  (4.) the work done on it

44. 21.  The acceleration of an object depends upon the mass of the object and  (1.) its momentum (2.) its weight (3.) the force applied to it  (4.) the work done on it

45. True/False 22. Forces are always balanced

46. True/False 22. Forces are always balanced: FALSE

47. True/False 23. Gravity is a force

48. True/False 23. Gravity is a force: TRUE

49. True/False 24. Weight = Mass x Gravity

50. True/False 24. Weight = Mass x Gravity TRUE