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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 374 · 40 questions
TalentJR

Engineer's tip (Add same way, subtract opposite): Push moves away, pull moves towards; force is measured in newtons (N). Same direction: add. Opposite directions: bigger − smaller, towards the bigger. Weight (N) ≈ mass (kg) × 10.

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  1. 1.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  2. 2.💪 Which force pulls everything towards the Earth? (a) magnetism (b) gravity (c) friction (d) wind
  3. 3.💪 In which unit do we measure force? (a) metre (m) (b) newton (N) (c) litre (L) (d) second (s)
  4. 4.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  5. 5.💪 A force is a … (a) kind of colour (b) unit of time (c) push or a pull (d) type of sound
  6. 6.💪 Which force is at work: a rolling ball slows? (a) friction (b) magnetic force (c) gravity (d) muscular force
  7. 7.💪 Which force is at work: an apple falls down? (a) muscular force (b) friction (c) gravity (d) magnetic force
  8. 8.True or false: closing a drawer is a push. (a) True (b) False
  9. 9.💪 Which can a force NOT do? (a) change its shape (b) change its colour (c) start it moving (d) stop it moving
  10. 10.Which of these is caused by gravity? (a) squeezing a lemon (b) pedalling a cycle (c) a river flows downhill (d) a magnet picks up pins
  11. 11.True or false: plucking a mango is a pull. (a) True (b) False
  12. 12.💪 A bag has a mass of 7 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  13. 13.True or false: kicking a football is a pull. (a) False (b) True
  14. 14.Which of these is caused by gravity? (a) squeezing a lemon (b) lifting a school bag (c) a rolling ball slows (d) a thrown ball comes down
  15. 15.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  16. 16.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  17. 17.💪 Two children push a box to the right, one with 100 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  18. 18.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  19. 19.💪 Which force is at work: lifting a school bag? (a) muscular force (b) magnetic force (c) gravity (d) friction
  20. 20.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) gravity (c) muscular force (d) friction
  21. 21.True or false: kicking a football is a push. (a) True (b) False
  22. 22.💪 In a tug of war, one team pulls right with 60 N and the other pulls left with 50 N. What is the size of the net force, in newtons?
  23. 23.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  24. 24.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) muscular force (c) gravity (d) friction
  25. 25.💪 Which force is at work: pedalling a cycle? (a) gravity (b) magnetic force (c) muscular force (d) friction
  26. 26.💪 Two children push a box to the right, one with 85 N and the other with 65 N. What is the net (total) force on the box, in newtons?
  27. 27.True or false: pushing a trolley is a pull. (a) True (b) False
  28. 28.💪 A box weighs 150 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  29. 29.💪 A cart is pulled to the right with 45 N and to the left with 35 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  30. 30.Which of these is caused by gravity? (a) an apple falls down (b) a compass needle turns (c) a rolling ball slows (d) pedalling a cycle
  31. 31.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  32. 32.True or false: a tug of war is a push. (a) False (b) True
  33. 33.💪 Which force is at work: a compass needle turns? (a) friction (b) gravity (c) muscular force (d) magnetic force
  34. 34.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) muscular force (c) friction (d) gravity
  35. 35.True or false: pulling a cart is a push. (a) True (b) False
  36. 36.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  37. 37.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  38. 38.True or false: pulling up your socks is a push. (a) True (b) False
  39. 39.True or false: drawing up a well bucket is a push. (a) True (b) False
  40. 40.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push

Answer key

  1. a pull
  2. gravity
  3. newton (N)
  4. a pull
  5. push or a pull
  6. friction
  7. gravity
  8. True
  9. change its colour
  10. a river flows downhill
  11. True
  12. 70
  13. False
  14. a thrown ball comes down
  15. a pull
  16. a push
  17. 110
  18. a push
  19. muscular force
  20. friction
  21. True
  22. 10
  23. a pull
  24. friction
  25. muscular force
  26. 150
  27. False
  28. 15
  29. to the right
  30. an apple falls down
  31. 25
  32. False
  33. magnetic force
  34. gravity
  35. False
  36. a pull
  37. a push
  38. False
  39. False
  40. a pull

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