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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 6 · 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: pushing a trolley is a pull. (a) False (b) True
  2. 2.Which of these is caused by friction? (a) rain falls to the ground (b) a magnet picks up pins (c) squeezing a lemon (d) shoes grip the floor
  3. 3.True or false: closing a drawer is a push. (a) False (b) True
  4. 4.💪 Two children push a box to the right, one with 55 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  5. 5.True or false: kicking a football is a pull. (a) True (b) False
  6. 6.Which of these is caused by gravity? (a) a magnet picks up pins (b) rain falls to the ground (c) lifting a school bag (d) brakes stop a bicycle
  7. 7.💪 A bag has a mass of 34 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  8. 8.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) friction (c) gravity (d) magnetic force
  9. 9.True or false: kicking a football is a push. (a) False (b) True
  10. 10.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) doubled (c) balanced (d) unbalanced
  11. 11.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  12. 12.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  13. 13.💪 Two children push a box to the right, one with 100 N and the other with 65 N. What is the net (total) force on the box, in newtons?
  14. 14.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) friction (c) muscular force (d) gravity
  15. 15.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  16. 16.💪 A bag has a mass of 13 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  17. 17.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  18. 18.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  19. 19.True or false: pulling up your socks is a push. (a) False (b) True
  20. 20.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) muscular force (c) friction (d) magnetic force
  21. 21.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) friction (c) muscular force (d) gravity
  22. 22.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) magnetic force (c) muscular force (d) gravity
  23. 23.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  24. 24.True or false: hitting a cricket ball is a push. (a) True (b) False
  25. 25.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  26. 26.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  27. 27.True or false: pressing a doorbell is a pull. (a) True (b) False
  28. 28.💪 Two children push a box to the right, one with 70 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  29. 29.💪 A cart is pulled to the right with 30 N and to the left with 20 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  30. 30.💪 Two children push a box to the right, one with 50 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  31. 31.💪 A bag has a mass of 51 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  32. 32.💪 In a tug of war, one team pulls left with 60 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  33. 33.True or false: plucking a mango is a pull. (a) False (b) True
  34. 34.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  35. 35.💪 A bag has a mass of 18 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  36. 36.💪 A cart is pulled to the right with 40 N and to the left with 50 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  37. 37.True or false: pushing a trolley is a push. (a) False (b) True
  38. 38.Which of these is caused by muscular force? (a) a compass needle turns (b) rain falls to the ground (c) pedalling a cycle (d) a thrown ball comes down
  39. 39.💪 Which force is at work: a compass needle turns? (a) gravity (b) muscular force (c) magnetic force (d) friction
  40. 40.💪 Which force pulls everything towards the Earth? (a) magnetism (b) friction (c) gravity (d) wind

Answer key

  1. False
  2. shoes grip the floor
  3. True
  4. 85
  5. False
  6. rain falls to the ground
  7. 340
  8. magnetic force
  9. True
  10. balanced
  11. a push
  12. a push
  13. 165
  14. gravity
  15. a pull
  16. 130
  17. 5
  18. 10
  19. False
  20. gravity
  21. gravity
  22. friction
  23. a push
  24. True
  25. a pull
  26. a pull
  27. False
  28. 150
  29. to the right
  30. 130
  31. 510
  32. 50
  33. True
  34. 25
  35. 180
  36. to the left
  37. True
  38. pedalling a cycle
  39. magnetic force
  40. gravity

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