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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 417 · 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 muscular force? (a) a thrown ball comes down (b) an apple falls down (c) a magnet picks up pins (d) squeezing a lemon
  2. 2.💪 A box weighs 160 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  3. 3.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) gravity (c) magnetic force (d) friction
  4. 4.💪 Two children push a box to the right, one with 60 N and the other with 55 N. What is the net (total) force on the box, in newtons?
  5. 5.💪 A cart is pulled to the right with 20 N and to the left with 25 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  6. 6.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  7. 7.True or false: kicking a football is a push. (a) True (b) False
  8. 8.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  9. 9.True or false: plucking a mango is a pull. (a) False (b) True
  10. 10.True or false: drawing up a well bucket is a push. (a) False (b) True
  11. 11.💪 In which unit do we measure force? (a) metre (m) (b) litre (L) (c) second (s) (d) newton (N)
  12. 12.💪 Two children push a box to the right, one with 15 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  13. 13.True or false: pulling a cart is a push. (a) True (b) False
  14. 14.💪 A box weighs 140 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  15. 15.True or false: plucking a mango is a push. (a) False (b) True
  16. 16.💪 In a tug of war, one team pulls left with 90 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  17. 17.💪 A force is a … (a) kind of colour (b) type of sound (c) unit of time (d) push or a pull
  18. 18.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  19. 19.💪 A box weighs 330 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  20. 20.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) friction (c) muscular force (d) gravity
  21. 21.💪 A box weighs 210 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  22. 22.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) friction (c) magnetic force (d) gravity
  23. 23.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  24. 24.💪 A box weighs 520 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  25. 25.💪 Which force is at work: a river flows downhill? (a) friction (b) muscular force (c) gravity (d) magnetic force
  26. 26.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) gravity (c) friction (d) magnetic force
  27. 27.💪 In a tug of war, one team pulls left with 40 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  28. 28.True or false: closing a drawer is a pull. (a) True (b) False
  29. 29.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 30 N. What is the size of the net force, in newtons?
  30. 30.💪 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?
  31. 31.💪 Two children push a box to the right, one with 100 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  32. 32.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  33. 33.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  34. 34.Which of these is caused by gravity? (a) a rolling ball slows (b) pedalling a cycle (c) an apple falls down (d) squeezing a lemon
  35. 35.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) magnetic force (c) friction (d) gravity
  36. 36.True or false: closing a drawer is a push. (a) False (b) True
  37. 37.💪 A box weighs 440 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  38. 38.💪 Two children push a box to the right, one with 85 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  39. 39.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  40. 40.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) gravity (d) magnetism

Answer key

  1. squeezing a lemon
  2. 16
  3. friction
  4. 115
  5. to the left
  6. 15
  7. True
  8. a push
  9. True
  10. False
  11. newton (N)
  12. 95
  13. False
  14. 14
  15. False
  16. 80
  17. push or a pull
  18. a pull
  19. 33
  20. friction
  21. 21
  22. gravity
  23. a pull
  24. 52
  25. gravity
  26. gravity
  27. 35
  28. False
  29. 60
  30. 70
  31. 130
  32. a push
  33. a push
  34. an apple falls down
  35. magnetic force
  36. True
  37. 44
  38. 100
  39. a pull
  40. gravity

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