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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 305 · 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 plucking a mango a push or a pull? (a) a push (b) a pull
  2. 2.💪 A cart is pulled to the right with 95 N and to the left with 80 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  3. 3.Which of these is caused by gravity? (a) a thrown ball comes down (b) a rolling ball slows (c) pedalling a cycle (d) brakes stop a bicycle
  4. 4.💪 Which force is at work: a fridge magnet sticks? (a) gravity (b) magnetic force (c) muscular force (d) friction
  5. 5.True or false: closing a drawer is a push. (a) False (b) True
  6. 6.True or false: drawing up a well bucket is a push. (a) False (b) True
  7. 7.True or false: hitting a cricket ball is a push. (a) False (b) True
  8. 8.Which of these is caused by friction? (a) a compass needle turns (b) rain falls to the ground (c) a fridge magnet sticks (d) brakes stop a bicycle
  9. 9.Which of these is caused by muscular force? (a) rubbing hands warms them (b) a compass needle turns (c) a rolling ball slows (d) squeezing a lemon
  10. 10.💪 A bag has a mass of 10 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  11. 11.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  12. 12.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  13. 13.💪 A box weighs 470 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  14. 14.💪 A bag has a mass of 2 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  15. 15.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  16. 16.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  17. 17.Which of these is caused by gravity? (a) a fridge magnet sticks (b) a magnet picks up pins (c) squeezing a lemon (d) a river flows downhill
  18. 18.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) gravity (c) magnetic force (d) friction
  19. 19.💪 A box weighs 280 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  20. 20.True or false: opening a drawer is a push. (a) True (b) False
  21. 21.💪 Two children push a box to the right, one with 85 N and the other with 60 N. What is the net (total) force on the box, in newtons?
  22. 22.True or false: closing a drawer is a pull. (a) True (b) False
  23. 23.💪 A box weighs 90 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  24. 24.💪 A bag has a mass of 28 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  25. 25.💪 A box weighs 400 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  26. 26.💪 Which force is at work: rain falls to the ground? (a) gravity (b) friction (c) muscular force (d) magnetic force
  27. 27.💪 Which force is at work: a compass needle turns? (a) muscular force (b) magnetic force (c) friction (d) gravity
  28. 28.💪 A force is a … (a) push or a pull (b) type of sound (c) kind of colour (d) unit of time
  29. 29.💪 In which unit do we measure force? (a) litre (L) (b) newton (N) (c) second (s) (d) metre (m)
  30. 30.💪 A bag has a mass of 26 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  31. 31.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) doubled (d) balanced
  32. 32.💪 Two children push a box to the right, one with 15 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  33. 33.True or false: kicking a football is a pull. (a) True (b) False
  34. 34.💪 A cart is pulled to the right with 100 N and to the left with 95 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  35. 35.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  36. 36.💪 A box weighs 110 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  37. 37.💪 Which force is at work: a rolling ball slows? (a) gravity (b) muscular force (c) magnetic force (d) friction
  38. 38.💪 A cart is pulled to the right with 70 N and to the left with 55 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  39. 39.True or false: pushing a trolley is a pull. (a) False (b) True
  40. 40.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push

Answer key

  1. a pull
  2. to the right
  3. a thrown ball comes down
  4. magnetic force
  5. True
  6. False
  7. True
  8. brakes stop a bicycle
  9. squeezing a lemon
  10. 100
  11. 15
  12. a pull
  13. 47
  14. 20
  15. a push
  16. a push
  17. a river flows downhill
  18. friction
  19. 28
  20. False
  21. 145
  22. False
  23. 9
  24. 280
  25. 40
  26. gravity
  27. magnetic force
  28. push or a pull
  29. newton (N)
  30. 260
  31. balanced
  32. 55
  33. False
  34. to the right
  35. a push
  36. 11
  37. friction
  38. to the right
  39. False
  40. a pull

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