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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 866 · 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.True or false: closing a drawer is a pull. (a) True (b) False
  2. 2.💪 Which force is at work: a magnet picks up pins? (a) gravity (b) friction (c) magnetic force (d) muscular force
  3. 3.💪 A box weighs 180 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  4. 4.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) magnetic force (c) muscular force (d) gravity
  5. 5.💪 Which force is at work: lifting a school bag? (a) muscular force (b) magnetic force (c) gravity (d) friction
  6. 6.💪 A bag has a mass of 37 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  7. 7.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) squeezing a lemon (c) a magnet picks up pins (d) a river flows downhill
  8. 8.💪 A box weighs 230 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  9. 9.💪 A box weighs 290 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  10. 10.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) muscular force (c) friction (d) gravity
  11. 11.💪 Two children push a box to the right, one with 30 N and the other with 100 N. What is the net (total) force on the box, in newtons?
  12. 12.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  13. 13.True or false: pushing a swing is a pull. (a) True (b) False
  14. 14.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) muscular force (c) gravity (d) friction
  15. 15.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  16. 16.True or false: pressing a doorbell is a pull. (a) False (b) True
  17. 17.💪 Two children push a box to the right, one with 55 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  18. 18.True or false: pressing a doorbell is a push. (a) False (b) True
  19. 19.💪 Which force pulls everything towards the Earth? (a) wind (b) friction (c) magnetism (d) gravity
  20. 20.💪 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?
  21. 21.Which of these is caused by magnetic force? (a) rain falls to the ground (b) pedalling a cycle (c) squeezing a lemon (d) a fridge magnet sticks
  22. 22.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) muscular force (c) gravity (d) friction
  23. 23.True or false: hitting a cricket ball is a pull. (a) True (b) False
  24. 24.True or false: pulling up your socks is a pull. (a) True (b) False
  25. 25.Which of these is caused by gravity? (a) rubbing hands warms them (b) an apple falls down (c) a rolling ball slows (d) a fridge magnet sticks
  26. 26.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  27. 27.Which of these is caused by friction? (a) pedalling a cycle (b) a fridge magnet sticks (c) shoes grip the floor (d) a thrown ball comes down
  28. 28.True or false: pulling up your socks is a push. (a) False (b) True
  29. 29.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  30. 30.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  31. 31.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  32. 32.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  33. 33.Which of these is caused by friction? (a) an apple falls down (b) a fridge magnet sticks (c) pedalling a cycle (d) a rolling ball slows
  34. 34.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  35. 35.💪 Which force is at work: rubbing hands warms them? (a) friction (b) magnetic force (c) muscular force (d) gravity
  36. 36.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) an apple falls down (c) lifting a school bag (d) shoes grip the floor
  37. 37.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  38. 38.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  39. 39.Which of these is caused by muscular force? (a) a magnet picks up pins (b) a compass needle turns (c) squeezing a lemon (d) rain falls to the ground
  40. 40.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 30 N. What is the size of the net force, in newtons?

Answer key

  1. False
  2. magnetic force
  3. 18
  4. friction
  5. muscular force
  6. 370
  7. a magnet picks up pins
  8. 23
  9. 29
  10. gravity
  11. 130
  12. a pull
  13. False
  14. gravity
  15. a push
  16. False
  17. 80
  18. True
  19. gravity
  20. 25
  21. a fridge magnet sticks
  22. friction
  23. False
  24. True
  25. an apple falls down
  26. a push
  27. shoes grip the floor
  28. False
  29. a pull
  30. a pull
  31. a pull
  32. a push
  33. a rolling ball slows
  34. 10
  35. friction
  36. lifting a school bag
  37. a pull
  38. a push
  39. squeezing a lemon
  40. 70

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