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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 568 · 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.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  2. 2.💪 Which can a force NOT do? (a) change its colour (b) stop it moving (c) change its shape (d) start it moving
  3. 3.💪 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?
  4. 4.💪 A box weighs 600 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  5. 5.True or false: pulling a cart is a push. (a) False (b) True
  6. 6.💪 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) to the left (b) no net force (c) to the right
  7. 7.True or false: kicking a football is a push. (a) False (b) True
  8. 8.Which of these is caused by muscular force? (a) squeezing a lemon (b) a thrown ball comes down (c) rubbing hands warms them (d) rain falls to the ground
  9. 9.True or false: drawing up a well bucket is a push. (a) False (b) True
  10. 10.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  11. 11.Which of these is caused by friction? (a) a magnet picks up pins (b) a thrown ball comes down (c) brakes stop a bicycle (d) rain falls to the ground
  12. 12.💪 Two children push a box to the right, one with 5 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  13. 13.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  14. 14.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  15. 15.💪 Which force is at work: squeezing a lemon? (a) muscular force (b) magnetic force (c) gravity (d) friction
  16. 16.💪 Two children push a box to the right, one with 55 N and the other with 65 N. What is the net (total) force on the box, in newtons?
  17. 17.Which of these is caused by friction? (a) a compass needle turns (b) lifting a school bag (c) a rolling ball slows (d) an apple falls down
  18. 18.Which of these is caused by friction? (a) squeezing a lemon (b) a compass needle turns (c) rubbing hands warms them (d) a river flows downhill
  19. 19.True or false: hitting a cricket ball is a push. (a) False (b) True
  20. 20.True or false: pressing a doorbell is a pull. (a) True (b) False
  21. 21.💪 A box weighs 490 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  22. 22.💪 Two children push a box to the right, one with 10 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  23. 23.💪 A bag has a mass of 24 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  24. 24.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  25. 25.💪 A bag has a mass of 6 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  26. 26.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) gravity (d) magnetism
  27. 27.💪 Two children push a box to the right, one with 15 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  28. 28.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  29. 29.True or false: closing a drawer is a pull. (a) True (b) False
  30. 30.💪 A bag has a mass of 10 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  31. 31.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  32. 32.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) gravity (c) friction (d) magnetic force
  33. 33.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  34. 34.True or false: closing a drawer is a push. (a) False (b) True
  35. 35.💪 Two children push a box to the right, one with 25 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  36. 36.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) friction (c) gravity (d) muscular force
  37. 37.Which of these is caused by magnetic force? (a) rain falls to the ground (b) a rolling ball slows (c) a fridge magnet sticks (d) rubbing hands warms them
  38. 38.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) gravity (c) muscular force (d) friction
  39. 39.True or false: pushing a trolley is a pull. (a) True (b) False
  40. 40.True or false: kicking a football is a pull. (a) False (b) True

Answer key

  1. 10
  2. change its colour
  3. 65
  4. 60
  5. False
  6. to the left
  7. True
  8. squeezing a lemon
  9. False
  10. 20
  11. brakes stop a bicycle
  12. 30
  13. a pull
  14. a push
  15. muscular force
  16. 120
  17. a rolling ball slows
  18. rubbing hands warms them
  19. True
  20. False
  21. 49
  22. 45
  23. 240
  24. a push
  25. 60
  26. gravity
  27. 30
  28. 80
  29. False
  30. 100
  31. a pull
  32. muscular force
  33. a push
  34. True
  35. 115
  36. gravity
  37. a fridge magnet sticks
  38. friction
  39. False
  40. False

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