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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 104 · 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.

NameDateTime takenScore ___ / 40
  1. 1.Which of these is caused by magnetic force? (a) pedalling a cycle (b) rain falls to the ground (c) a thrown ball comes down (d) a magnet picks up pins
  2. 2.True or false: pulling up your socks is a push. (a) True (b) False
  3. 3.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) a magnet picks up pins (c) an apple falls down (d) pedalling a cycle
  4. 4.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  5. 5.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  6. 6.💪 Two children push a box to the right, one with 15 N and the other with 60 N. What is the net (total) force on the box, in newtons?
  7. 7.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  8. 8.💪 A box weighs 170 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  9. 9.💪 Two children push a box to the right, one with 100 N and the other with 70 N. What is the net (total) force on the box, in newtons?
  10. 10.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  11. 11.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  12. 12.💪 In a tug of war, one team pulls left with 90 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  13. 13.💪 In a tug of war, one team pulls left with 55 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  14. 14.💪 A box weighs 90 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  15. 15.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) friction (c) magnetic force (d) muscular force
  16. 16.True or false: pushing a trolley is a push. (a) True (b) False
  17. 17.True or false: pressing a doorbell is a push. (a) False (b) True
  18. 18.True or false: pressing a doorbell is a pull. (a) True (b) False
  19. 19.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) a thrown ball comes down (c) squeezing a lemon (d) an apple falls down
  20. 20.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) gravity (c) doubled (d) unbalanced
  21. 21.💪 In which unit do we measure force? (a) newton (N) (b) litre (L) (c) second (s) (d) metre (m)
  22. 22.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  23. 23.True or false: pushing a trolley is a pull. (a) True (b) False
  24. 24.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) magnetic force (c) muscular force (d) friction
  25. 25.💪 Which force is at work: an apple falls down? (a) magnetic force (b) gravity (c) friction (d) muscular force
  26. 26.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 65 N. What is the size of the net force, in newtons?
  27. 27.💪 Which force is at work: a magnet picks up pins? (a) gravity (b) muscular force (c) magnetic force (d) friction
  28. 28.💪 Two children push a box to the right, one with 30 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  29. 29.💪 A cart is pulled to the right with 75 N and to the left with 85 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  30. 30.True or false: closing a drawer is a pull. (a) True (b) False
  31. 31.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  32. 32.💪 A bag has a mass of 46 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  33. 33.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  34. 34.True or false: pushing a swing is a push. (a) True (b) False
  35. 35.💪 A bag has a mass of 29 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  36. 36.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  37. 37.💪 Which force is at work: a river flows downhill? (a) muscular force (b) friction (c) magnetic force (d) gravity
  38. 38.💪 A box weighs 30 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  39. 39.💪 A force is a … (a) push or a pull (b) type of sound (c) unit of time (d) kind of colour
  40. 40.Which of these is caused by friction? (a) a rolling ball slows (b) a magnet picks up pins (c) a river flows downhill (d) rain falls to the ground

Answer key

  1. a magnet picks up pins
  2. False
  3. pedalling a cycle
  4. a pull
  5. a pull
  6. 75
  7. a pull
  8. 17
  9. 170
  10. 55
  11. a push
  12. 85
  13. 50
  14. 9
  15. friction
  16. True
  17. True
  18. False
  19. a fridge magnet sticks
  20. balanced
  21. newton (N)
  22. a pull
  23. False
  24. friction
  25. gravity
  26. 10
  27. magnetic force
  28. 70
  29. to the left
  30. False
  31. a push
  32. 460
  33. a push
  34. True
  35. 290
  36. a pull
  37. gravity
  38. 3
  39. push or a pull
  40. a rolling ball slows

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