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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 105 · 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 box weighs 560 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  2. 2.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  3. 3.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) magnetism (d) friction
  4. 4.True or false: hitting a cricket ball is a pull. (a) True (b) False
  5. 5.💪 Which force is at work: an apple falls down? (a) magnetic force (b) muscular force (c) gravity (d) friction
  6. 6.💪 Two children push a box to the right, one with 5 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  7. 7.💪 Two children push a box to the right, one with 80 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  8. 8.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  9. 9.True or false: opening a drawer is a pull. (a) False (b) True
  10. 10.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  11. 11.💪 A force is a … (a) push or a pull (b) unit of time (c) kind of colour (d) type of sound
  12. 12.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) unbalanced (c) balanced (d) gravity
  13. 13.Which of these is caused by gravity? (a) squeezing a lemon (b) a rolling ball slows (c) shoes grip the floor (d) rain falls to the ground
  14. 14.Which of these is caused by friction? (a) a river flows downhill (b) rain falls to the ground (c) lifting a school bag (d) shoes grip the floor
  15. 15.True or false: closing a drawer is a push. (a) False (b) True
  16. 16.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) magnetic force (c) gravity (d) friction
  17. 17.💪 A box weighs 390 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  18. 18.💪 A bag has a mass of 29 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  19. 19.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  20. 20.True or false: a tug of war is a push. (a) True (b) False
  21. 21.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) magnetic force (c) friction (d) gravity
  22. 22.💪 In a tug of war, one team pulls right with 85 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  23. 23.💪 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?
  24. 24.True or false: opening a drawer is a push. (a) True (b) False
  25. 25.💪 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 left (b) to the right (c) no net force
  26. 26.💪 A bag has a mass of 43 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  27. 27.💪 In which unit do we measure force? (a) litre (L) (b) second (s) (c) metre (m) (d) newton (N)
  28. 28.💪 A box weighs 150 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  29. 29.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  30. 30.True or false: pushing a trolley is a push. (a) True (b) False
  31. 31.True or false: pushing a swing is a pull. (a) False (b) True
  32. 32.💪 A bag has a mass of 36 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  33. 33.💪 A bag has a mass of 2 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  34. 34.💪 A box weighs 30 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  35. 35.💪 Two children push a box to the right, one with 10 N and the other with 55 N. What is the net (total) force on the box, in newtons?
  36. 36.💪 A box weighs 10 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  37. 37.True or false: pushing a trolley is a pull. (a) True (b) False
  38. 38.💪 A bag has a mass of 39 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  39. 39.True or false: pulling a cart is a push. (a) False (b) True
  40. 40.💪 A bag has a mass of 42 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

Answer key

  1. 56
  2. a push
  3. gravity
  4. False
  5. gravity
  6. 45
  7. 160
  8. a push
  9. True
  10. a pull
  11. push or a pull
  12. balanced
  13. rain falls to the ground
  14. shoes grip the floor
  15. True
  16. muscular force
  17. 39
  18. 290
  19. a push
  20. False
  21. friction
  22. 70
  23. 65
  24. False
  25. to the right
  26. 430
  27. newton (N)
  28. 15
  29. 75
  30. True
  31. False
  32. 360
  33. 20
  34. 3
  35. 65
  36. 1
  37. False
  38. 390
  39. False
  40. 420

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