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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 107 · 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.Which of these is caused by friction? (a) rubbing hands warms them (b) rain falls to the ground (c) an apple falls down (d) a river flows downhill
  2. 2.True or false: pushing a swing is a push. (a) False (b) True
  3. 3.True or false: pulling up your socks is a pull. (a) True (b) False
  4. 4.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  5. 5.True or false: opening a drawer is a push. (a) True (b) False
  6. 6.💪 Two children push a box to the right, one with 50 N and the other with 70 N. What is the net (total) force on the box, in newtons?
  7. 7.💪 Two children push a box to the right, one with 15 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  8. 8.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) gravity (c) friction (d) muscular force
  9. 9.💪 A box weighs 540 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  10. 10.True or false: pulling up your socks is a push. (a) True (b) False
  11. 11.💪 Which force is at work: squeezing a lemon? (a) muscular force (b) magnetic force (c) gravity (d) friction
  12. 12.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  13. 13.True or false: pressing a doorbell is a push. (a) True (b) False
  14. 14.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  15. 15.💪 A box weighs 570 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  16. 16.💪 Two children push a box to the right, one with 65 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  17. 17.Which of these is caused by muscular force? (a) squeezing a lemon (b) a thrown ball comes down (c) shoes grip the floor (d) rain falls to the ground
  18. 18.💪 In which unit do we measure force? (a) litre (L) (b) second (s) (c) newton (N) (d) metre (m)
  19. 19.💪 Which force is at work: pedalling a cycle? (a) gravity (b) friction (c) magnetic force (d) muscular force
  20. 20.💪 A box weighs 580 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  21. 21.💪 A box weighs 380 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  22. 22.💪 Which force is at work: a rolling ball slows? (a) friction (b) gravity (c) magnetic force (d) muscular force
  23. 23.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  24. 24.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) a rolling ball slows (c) a compass needle turns (d) lifting a school bag
  25. 25.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  26. 26.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) friction (c) muscular force (d) magnetic force
  27. 27.💪 In a tug of war, one team pulls right with 70 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  28. 28.💪 Two children push a box to the right, one with 70 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  29. 29.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  30. 30.Which of these is caused by gravity? (a) squeezing a lemon (b) shoes grip the floor (c) a thrown ball comes down (d) a fridge magnet sticks
  31. 31.Which of these is caused by gravity? (a) shoes grip the floor (b) brakes stop a bicycle (c) a river flows downhill (d) a fridge magnet sticks
  32. 32.True or false: pushing a trolley is a pull. (a) True (b) False
  33. 33.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  34. 34.True or false: kicking a football is a pull. (a) False (b) True
  35. 35.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) muscular force (c) friction (d) gravity
  36. 36.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  37. 37.True or false: hitting a cricket ball is a pull. (a) True (b) False
  38. 38.💪 Which can a force NOT do? (a) change its shape (b) stop it moving (c) change its colour (d) start it moving
  39. 39.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) balanced (c) unbalanced (d) doubled
  40. 40.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 10 N. What is the size of the net force, in newtons?

Answer key

  1. rubbing hands warms them
  2. True
  3. True
  4. a push
  5. False
  6. 120
  7. 100
  8. gravity
  9. 54
  10. False
  11. muscular force
  12. a pull
  13. True
  14. 25
  15. 57
  16. 70
  17. squeezing a lemon
  18. newton (N)
  19. muscular force
  20. 58
  21. 38
  22. friction
  23. a push
  24. a compass needle turns
  25. a pull
  26. friction
  27. 65
  28. 120
  29. 90
  30. a thrown ball comes down
  31. a river flows downhill
  32. False
  33. a push
  34. False
  35. friction
  36. a push
  37. False
  38. change its colour
  39. balanced
  40. 90

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