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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 32 · 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.💪 A force is a … (a) unit of time (b) type of sound (c) push or a pull (d) kind of colour
  2. 2.True or false: kicking a football is a pull. (a) False (b) True
  3. 3.True or false: pressing a doorbell is a pull. (a) False (b) True
  4. 4.Which of these is caused by friction? (a) a fridge magnet sticks (b) pedalling a cycle (c) brakes stop a bicycle (d) an apple falls down
  5. 5.💪 A bag has a mass of 59 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  6. 6.💪 A bag has a mass of 6 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  7. 7.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
  8. 8.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  9. 9.💪 In a tug of war, one team pulls left with 85 N and the other pulls right with 60 N. What is the size of the net force, in newtons?
  10. 10.💪 Two children push a box to the right, one with 25 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  11. 11.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) muscular force (c) friction (d) gravity
  12. 12.💪 A cart is pulled to the right with 40 N and to the left with 55 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  13. 13.True or false: pulling a cart is a push. (a) True (b) False
  14. 14.Which of these is caused by gravity? (a) rubbing hands warms them (b) a fridge magnet sticks (c) an apple falls down (d) a rolling ball slows
  15. 15.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  16. 16.💪 Which force pulls everything towards the Earth? (a) friction (b) gravity (c) wind (d) magnetism
  17. 17.💪 Which force is at work: pedalling a cycle? (a) friction (b) magnetic force (c) muscular force (d) gravity
  18. 18.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) friction (c) gravity (d) muscular force
  19. 19.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) gravity (c) unbalanced (d) doubled
  20. 20.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  21. 21.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 65 N. What is the size of the net force, in newtons?
  22. 22.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 30 N. What is the size of the net force, in newtons?
  23. 23.💪 Two children push a box to the right, one with 10 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  24. 24.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  25. 25.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  26. 26.💪 A bag has a mass of 56 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  27. 27.True or false: pushing a swing is a pull. (a) True (b) False
  28. 28.💪 A box weighs 230 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  29. 29.Which of these is caused by magnetic force? (a) a river flows downhill (b) brakes stop a bicycle (c) a rolling ball slows (d) a magnet picks up pins
  30. 30.Which of these is caused by friction? (a) rubbing hands warms them (b) rain falls to the ground (c) a magnet picks up pins (d) squeezing a lemon
  31. 31.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) magnetic force (c) friction (d) gravity
  32. 32.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  33. 33.💪 A cart is pulled to the right with 45 N and to the left with 40 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  34. 34.True or false: kicking a football is a push. (a) True (b) False
  35. 35.True or false: closing a drawer is a pull. (a) False (b) True
  36. 36.True or false: closing a drawer is a push. (a) False (b) True
  37. 37.💪 Two children push a box to the right, one with 60 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  38. 38.💪 Which force is at work: a river flows downhill? (a) muscular force (b) magnetic force (c) friction (d) gravity
  39. 39.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  40. 40.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) pedalling a cycle (c) rain falls to the ground (d) a rolling ball slows

Answer key

  1. push or a pull
  2. False
  3. False
  4. brakes stop a bicycle
  5. 590
  6. 60
  7. 5
  8. a push
  9. 25
  10. 70
  11. gravity
  12. to the left
  13. False
  14. an apple falls down
  15. a push
  16. gravity
  17. muscular force
  18. muscular force
  19. balanced
  20. a pull
  21. 35
  22. 5
  23. 25
  24. a push
  25. a pull
  26. 560
  27. False
  28. 23
  29. a magnet picks up pins
  30. rubbing hands warms them
  31. friction
  32. a pull
  33. to the right
  34. True
  35. False
  36. True
  37. 105
  38. gravity
  39. a push
  40. a fridge magnet sticks

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