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Scalars and vectors

8th grade (Year 9 in England) · 16 questions · Common Core: NGSS.HS-PS2-1 · England: GCSE Combined Science: Forces (scalar and vector quantities)

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Date

Score/ 16

  1. Question 1

    A dog runs 20 m east, then 90 m west. What total distance does it run, in m?

    Answerm

  2. Question 2

    A car drives round a roundabout at a steady 20 km/h. Is its velocity constant?

    • A. Yes: velocity has no direction
    • B. No: its speed keeps changing
    • C. Yes: the speed is constant
    • D. No: its direction keeps changing, so its velocity changes

  3. Question 3

    Is temperature a scalar or a vector quantity?

    • A. scalar (size only)
    • B. vector (size and direction)

  4. Question 4

    A dog runs 30 m east, then 90 m west. What is the size of its displacement from the start, in m?

    Answerm

  5. Question 5

    A runner completes one full lap of a 400 m track. What is their displacement?

    • A. 200 m
    • B. 800 m
    • C. 0 m
    • D. 400 m

  6. Question 6

    Is displacement a scalar or a vector quantity?

    • A. scalar (size only)
    • B. vector (size and direction)

  7. Question 7

    A dog runs 50 m east, then 30 m west. What total distance does it run, in m?

    Answerm

  8. Question 8

    A ball is thrown up at 10 m/s and later falls back past the same point at 10 m/s. Has its velocity changed?

    • A. Yes: the speed is the same but the direction is reversed
    • B. No: the speed is the same
    • C. Yes: the ball is heavier on the way down
    • D. No: velocity is a scalar

  9. Question 9

    Is temperature a scalar or a vector quantity?

    • A. scalar (size only)
    • B. vector (size and direction)

  10. Question 10

    A dog runs 50 m east, then 60 m west. What is the size of its displacement from the start, in m?

    Answerm

  11. Question 11

    Which statement uses "velocity" correctly?

    • A. The plane flew at 250 m/s due north
    • B. The plane's velocity was north
    • C. The plane's velocity was 250 m/s
    • D. The plane's velocity was 3 hours

  12. Question 12

    Is distance a scalar or a vector quantity?

    • A. scalar (size only)
    • B. vector (size and direction)

  13. Question 13

    A dog runs 30 m east, then 70 m west. What total distance does it run, in m?

    Answerm

  14. Question 14

    Which statement uses "velocity" correctly?

    • A. The plane flew at 250 m/s due north
    • B. The plane's velocity was north
    • C. The plane's velocity was 3 hours
    • D. The plane's velocity was 250 m/s

  15. Question 15

    Is velocity a scalar or a vector quantity?

    • A. scalar (size only)
    • B. vector (size and direction)

  16. Question 16

    A dog runs 50 m east, then 70 m west. What total distance does it run, in m?

    Answerm

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  1. 110 m
  2. No: its direction keeps changing, so its velocity changes
  3. scalar (size only)
  4. 60 m
  5. 0 m
  6. vector (size and direction)
  7. 80 m
  8. Yes: the speed is the same but the direction is reversed
  9. scalar (size only)
  10. 10 m
  11. The plane flew at 250 m/s due north
  12. scalar (size only)
  13. 100 m
  14. The plane flew at 250 m/s due north
  15. vector (size and direction)
  16. 120 m