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Motion Review

Motion Review. Physical Science. 1. True or False…. Motion is measured relative to a reference point . TRUE. Motion is measured relative to a reference point . 2. True or False…. Average speed is the rate at which an object is moving at a given instant. False.

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Motion Review

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  1. Motion Review Physical Science

  2. 1. True or False… • Motion is measured relative to a reference point.

  3. TRUE • Motion is measured relative to a reference point.

  4. 2. True or False… • Average speed is the rate at which an object is moving at a given instant.

  5. False • Instantaneous speed is the rate at which an object is moving at a given instant.

  6. 3. True or False… • A meter is a place or object used for comparison to determine if something is in motion.

  7. FALSE • A reference pointis a place or object used for comparison to determine if something is in motion.

  8. 4. True or False… • If a toy car traveling at 10 cm/s passes a toy car moving at 10 cm/s in the opposite direction, both cars have the same velocity.

  9. FALSE • If a toy car traveling at 10 cm/s passes a toy car moving at 10 cm/s in the opposite direction, both cars have the same speed.

  10. 5. True or False… • A straight diagonal line on a distance vs. time graph indicates constant speed.

  11. TRUE • A straight diagonal line on a distance vs. timegraph indicates constant speed.

  12. 6. True or False… • A horizontal line on a distance vs. time graph means that the object is at rest.

  13. TRUE • A horizontal line on a distance vs. time graph means that the object is at rest.

  14. 7. True or False… • A child riding on a merry-go-round is accelerating because his direction is changing.

  15. TRUE • A child riding on a merry-go-round is accelerating because his direction is changing.

  16. 8. True or False… • The SI unit of velocity is the meter per second per second.

  17. FALSE • The SI unit of accelerationis the meter per second per second.

  18. 9.True or False… • A straight line on a graph of speed vs. time means that the object has a constant acceleration.

  19. TRUE • A straight line on a graph of speed vs. time means that the object has a constant acceleration.

  20. 10. True or False… • The steepness of a line graph is referred to as the run.

  21. FALSE • The steepness of a line graph is referred to as the slope.

  22. 11. • A reference point is assumed to be _______, or not moving.

  23. 11. • A reference point is assumed to be __stationary_____,or not moving.

  24. 12. • A change in an object’s position relative to a reference point is called _______________.

  25. 12. • A change in an object’s position relative to a reference point is called ____motion___________.

  26. 13. • When riding a bicycle past a building, you are not moving relative to the ____________.

  27. 13. • When riding a bicycle past a building, you are not moving relative to the ___bicycle_________.

  28. 14. • Suppose you are sitting in a car at a red light when a car moving toward the north begins to pass you. If you use the passing car as a reference point, the direction in which you appear to be moving is toward the _____________.

  29. 14. • Suppose you are sitting in a car at a red light when a car moving toward the north begins to pass you. If you use the passing car as a reference point, the direction in which you appear to be moving is toward the south.

  30. 15. • The distance traveled by a moving object per unit of time is called ____________________.

  31. 15. • The distance traveled by a moving object per unit of time is called ______speed_____.

  32. 16. • The basic SI unit of length is the _________________.

  33. 16. • The basic SI unit of length is the meter.

  34. 17. • Speed that does not change is referred to as ____________ speed.

  35. 17. • Speed that does not change is referred to as constant speed.

  36. 18. • The statement that the motion of a hurricane is 20 km per hour in an easterly direction is a description of the hurricane’s _______________.

  37. 18. • The statement that the motion of a hurricane is 20 km per hour in an easterly direction is a description of the hurricane’s velocity.

  38. 19. • A speed of 15 km per hour is abbreviated as 15 _____

  39. 19. • A speed of 15 km per hour is abbreviated as 15 km/h.

  40. 20. • Acceleration is the rate of change in _______________.

  41. 20. • Acceleration is the rate of change in velocity.

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