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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 520 · 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.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  2. 2.💪 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?
  3. 3.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  4. 4.💪 A box weighs 560 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  5. 5.💪 Which force is at work: a river flows downhill? (a) gravity (b) muscular force (c) friction (d) magnetic force
  6. 6.True or false: pulling a cart is a push. (a) True (b) False
  7. 7.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  8. 8.💪 A bag has a mass of 43 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  9. 9.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  10. 10.💪 A bag has a mass of 23 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  11. 11.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  12. 12.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) unbalanced (c) balanced (d) doubled
  13. 13.💪 Which force is at work: a compass needle turns? (a) friction (b) muscular force (c) magnetic force (d) gravity
  14. 14.True or false: pushing a trolley is a push. (a) False (b) True
  15. 15.Which of these is caused by gravity? (a) a fridge magnet sticks (b) an apple falls down (c) shoes grip the floor (d) a rolling ball slows
  16. 16.True or false: drawing up a well bucket is a push. (a) False (b) True
  17. 17.💪 In a tug of war, one team pulls right with 40 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  18. 18.💪 Two children push a box to the right, one with 70 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  19. 19.💪 Which force is at work: a magnet picks up pins? (a) friction (b) muscular force (c) magnetic force (d) gravity
  20. 20.Which of these is caused by magnetic force? (a) a compass needle turns (b) a thrown ball comes down (c) an apple falls down (d) rubbing hands warms them
  21. 21.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) gravity (c) magnetic force (d) friction
  22. 22.True or false: hitting a cricket ball is a push. (a) True (b) False
  23. 23.💪 A cart is pulled to the right with 40 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
  24. 24.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) friction (c) gravity (d) muscular force
  25. 25.True or false: hitting a cricket ball is a pull. (a) False (b) True
  26. 26.💪 A force is a … (a) push or a pull (b) type of sound (c) kind of colour (d) unit of time
  27. 27.True or false: pulling up your socks is a push. (a) False (b) True
  28. 28.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  29. 29.💪 Two children push a box to the right, one with 60 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  30. 30.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) gravity (c) muscular force (d) friction
  31. 31.True or false: plucking a mango is a pull. (a) True (b) False
  32. 32.💪 A cart is pulled to the right with 30 N and to the left with 15 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  33. 33.True or false: drawing up a well bucket is a pull. (a) True (b) False
  34. 34.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) friction (c) gravity (d) magnetic force
  35. 35.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) friction (c) gravity (d) magnetic force
  36. 36.💪 A cart is pulled to the right with 50 N and to the left with 45 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  37. 37.💪 Which force is at work: an apple falls down? (a) magnetic force (b) gravity (c) muscular force (d) friction
  38. 38.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 60 N. What is the size of the net force, in newtons?
  39. 39.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) a thrown ball comes down (c) lifting a school bag (d) a fridge magnet sticks
  40. 40.💪 Two children push a box to the right, one with 25 N and the other with 55 N. What is the net (total) force on the box, in newtons?

Answer key

  1. a push
  2. 55
  3. a pull
  4. 56
  5. gravity
  6. False
  7. a pull
  8. 430
  9. 50
  10. 230
  11. a push
  12. balanced
  13. magnetic force
  14. True
  15. an apple falls down
  16. False
  17. 25
  18. 105
  19. magnetic force
  20. a compass needle turns
  21. friction
  22. True
  23. to the right
  24. gravity
  25. False
  26. push or a pull
  27. False
  28. a pull
  29. 65
  30. friction
  31. True
  32. to the right
  33. True
  34. muscular force
  35. friction
  36. to the right
  37. gravity
  38. 5
  39. lifting a school bag
  40. 80

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