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Contact forces and forces that act at a distance

3rd grade (Year 4 in England) · 16 questions · Common Core: NGSS.3-PS2-3 · England: KS2 Y3 Forces and magnets

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  1. Question 1

    Three of these are examples of a contact force. Which one is NOT?

    • A. kicking a ball
    • B. a magnet pulling a paperclip through paper
    • C. air resistance on a parachute
    • D. a rope pulling a boat
  2. Question 2

    Is this a contact force or a non-contact force: a rope pulling a boat?

    • A. contact force
    • B. non-contact force
  3. Question 3

    True or false? Gravity is a non-contact force.

    • A. True
    • B. False
  4. Question 4

    Three of these are examples of a contact force. Which one is NOT?

    • A. gravity pulling an apple to the ground
    • B. a rope pulling a boat
    • C. friction slowing a sledge (sled)
    • D. kicking a ball
  5. Question 5

    Is this a contact force or a non-contact force: pushing a door open?

    • A. contact force
    • B. non-contact force
  6. Question 6

    True or false? A magnet must touch a paperclip to attract it.

    • A. True
    • B. False
  7. Question 7

    Three of these are examples of a contact force. Which one is NOT?

    • A. pushing a door open
    • B. a rope pulling a boat
    • C. kicking a ball
    • D. gravity pulling an apple to the ground
  8. Question 8

    Is this a contact force or a non-contact force: a charged balloon lifting hair?

    • A. contact force
    • B. non-contact force
  9. Question 9

    True or false? Friction only acts when surfaces touch.

    • A. True
    • B. False
  10. Question 10

    Three of these are examples of a non-contact force. Which one is NOT?

    • A. Earth's gravity keeping the Moon in orbit
    • B. a charged balloon lifting hair
    • C. air resistance on a parachute
    • D. a magnet pulling a paperclip through paper
  11. Question 11

    Is this a contact force or a non-contact force: pushing a door open?

    • A. contact force
    • B. non-contact force
  12. Question 12

    True or false? Friction only acts when surfaces touch.

    • A. True
    • B. False
  13. Question 13

    Three of these are examples of a contact force. Which one is NOT?

    • A. pushing a door open
    • B. friction slowing a sledge (sled)
    • C. air resistance on a parachute
    • D. Earth's gravity keeping the Moon in orbit
  14. Question 14

    Is this a contact force or a non-contact force: friction slowing a sledge (sled)?

    • A. contact force
    • B. non-contact force
  15. Question 15

    True or false? Gravity is a non-contact force.

    • A. True
    • B. False
  16. Question 16

    Three of these are examples of a contact force. Which one is NOT?

    • A. Earth's gravity keeping the Moon in orbit
    • B. a rope pulling a boat
    • C. air resistance on a parachute
    • D. pushing a door open

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Answer key: Contact forces and forces that act at a distance

  1. 1. B. a magnet pulling a paperclip through paper

  2. 2. A. contact force

  3. 3. A. True

  4. 4. A. gravity pulling an apple to the ground

  5. 5. A. contact force

  6. 6. B. False

  7. 7. D. gravity pulling an apple to the ground

  8. 8. B. non-contact force

  9. 9. A. True

  10. 10. C. air resistance on a parachute

  11. 11. A. contact force

  12. 12. A. True

  13. 13. D. Earth's gravity keeping the Moon in orbit

  14. 14. A. contact force

  15. 15. A. True

  16. 16. A. Earth's gravity keeping the Moon in orbit