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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 363 · 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 hitting a cricket ball a push or a pull? (a) a pull (b) a push
  2. 2.💪 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?
  3. 3.💪 In which unit do we measure force? (a) newton (N) (b) second (s) (c) litre (L) (d) metre (m)
  4. 4.Which of these is caused by friction? (a) rubbing hands warms them (b) a magnet picks up pins (c) a river flows downhill (d) an apple falls down
  5. 5.💪 In a tug of war, one team pulls right with 10 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  6. 6.💪 A box weighs 450 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  7. 7.Which of these is caused by friction? (a) brakes stop a bicycle (b) a compass needle turns (c) a fridge magnet sticks (d) lifting a school bag
  8. 8.💪 Which force pulls everything towards the Earth? (a) wind (b) magnetism (c) friction (d) gravity
  9. 9.Which of these is caused by muscular force? (a) squeezing a lemon (b) rubbing hands warms them (c) rain falls to the ground (d) a magnet picks up pins
  10. 10.💪 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?
  11. 11.💪 Which force is at work: shoes grip the floor? (a) friction (b) muscular force (c) gravity (d) magnetic force
  12. 12.💪 Which force is at work: rain falls to the ground? (a) friction (b) muscular force (c) gravity (d) magnetic force
  13. 13.Which of these is caused by magnetic force? (a) an apple falls down (b) a rolling ball slows (c) a compass needle turns (d) rain falls to the ground
  14. 14.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) balanced (c) gravity (d) doubled
  15. 15.True or false: pulling up your socks is a push. (a) False (b) True
  16. 16.True or false: pulling a cart is a push. (a) False (b) True
  17. 17.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  18. 18.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  19. 19.True or false: opening a drawer is a push. (a) True (b) False
  20. 20.💪 A force is a … (a) push or a pull (b) unit of time (c) kind of colour (d) type of sound
  21. 21.True or false: pulling a cart is a pull. (a) False (b) True
  22. 22.Which of these is caused by magnetic force? (a) rubbing hands warms them (b) a fridge magnet sticks (c) pedalling a cycle (d) an apple falls down
  23. 23.True or false: kicking a football is a pull. (a) True (b) False
  24. 24.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  25. 25.💪 Which force is at work: a river flows downhill? (a) friction (b) gravity (c) muscular force (d) magnetic force
  26. 26.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  27. 27.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) friction (c) muscular force (d) gravity
  28. 28.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  29. 29.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  30. 30.Which of these is caused by gravity? (a) rubbing hands warms them (b) brakes stop a bicycle (c) rain falls to the ground (d) a magnet picks up pins
  31. 31.💪 A box weighs 210 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  32. 32.💪 A bag has a mass of 8 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  33. 33.💪 In a tug of war, one team pulls left with 45 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  34. 34.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
  35. 35.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  36. 36.💪 A box weighs 60 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  37. 37.True or false: pressing a doorbell is a pull. (a) True (b) False
  38. 38.True or false: plucking a mango is a pull. (a) False (b) True
  39. 39.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 75 N. What is the size of the net force, in newtons?
  40. 40.💪 A bag has a mass of 10 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

Answer key

  1. a push
  2. 10
  3. newton (N)
  4. rubbing hands warms them
  5. 5
  6. 45
  7. brakes stop a bicycle
  8. gravity
  9. squeezing a lemon
  10. 25
  11. friction
  12. gravity
  13. a compass needle turns
  14. balanced
  15. False
  16. False
  17. a pull
  18. a push
  19. False
  20. push or a pull
  21. True
  22. a fridge magnet sticks
  23. False
  24. a push
  25. gravity
  26. a pull
  27. friction
  28. 65
  29. a push
  30. rain falls to the ground
  31. 21
  32. 80
  33. 30
  34. 60
  35. a push
  36. 6
  37. False
  38. True
  39. 25
  40. 100

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