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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 200 · 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: a tug of war is a pull. (a) True (b) False
  2. 2.💪 In a tug of war, one team pulls left with 55 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
  3. 3.True or false: drawing up a well bucket is a pull. (a) True (b) False
  4. 4.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  5. 5.💪 Two children push a box to the right, one with 45 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  6. 6.Which of these is caused by muscular force? (a) a rolling ball slows (b) pedalling a cycle (c) rubbing hands warms them (d) a compass needle turns
  7. 7.💪 Two children push a box to the right, one with 30 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  8. 8.💪 A bag has a mass of 45 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  9. 9.Which of these is caused by gravity? (a) a compass needle turns (b) rubbing hands warms them (c) a magnet picks up pins (d) a river flows downhill
  10. 10.💪 A bag has a mass of 11 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 90 N and the other pulls left with 80 N. What is the size of the net force, in newtons?
  12. 12.💪 A force is a … (a) kind of colour (b) push or a pull (c) type of sound (d) unit of time
  13. 13.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) friction (c) gravity (d) magnetic force
  14. 14.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  15. 15.💪 A bag has a mass of 54 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  16. 16.Which of these is caused by magnetic force? (a) a river flows downhill (b) a thrown ball comes down (c) squeezing a lemon (d) a compass needle turns
  17. 17.💪 Which force is at work: a rolling ball slows? (a) friction (b) gravity (c) muscular force (d) magnetic force
  18. 18.💪 Which force is at work: an apple falls down? (a) gravity (b) magnetic force (c) muscular force (d) friction
  19. 19.True or false: opening a drawer is a push. (a) False (b) True
  20. 20.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) friction (c) gravity (d) muscular force
  21. 21.True or false: pressing a doorbell is a pull. (a) True (b) False
  22. 22.True or false: plucking a mango is a push. (a) True (b) False
  23. 23.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  24. 24.💪 A box weighs 140 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  25. 25.💪 A cart is pulled to the right with 80 N and to the left with 90 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  26. 26.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  27. 27.💪 A bag has a mass of 15 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  28. 28.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  29. 29.💪 A cart is pulled to the right with 65 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
  30. 30.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) friction (c) gravity (d) magnetic force
  31. 31.💪 A box weighs 330 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  32. 32.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  33. 33.💪 Two children push a box to the right, one with 50 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  34. 34.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  35. 35.💪 A cart is pulled to the right with 75 N and to the left with 65 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  36. 36.True or false: pushing a swing is a push. (a) False (b) True
  37. 37.True or false: plucking a mango is a pull. (a) False (b) True
  38. 38.💪 In a tug of war, one team pulls right with 60 N and the other pulls left with 45 N. What is the size of the net force, in newtons?
  39. 39.💪 In which unit do we measure force? (a) litre (L) (b) metre (m) (c) newton (N) (d) second (s)
  40. 40.Which of these is caused by friction? (a) a thrown ball comes down (b) squeezing a lemon (c) a compass needle turns (d) rubbing hands warms them

Answer key

  1. True
  2. 25
  3. True
  4. a push
  5. 80
  6. pedalling a cycle
  7. 35
  8. 450
  9. a river flows downhill
  10. 110
  11. 10
  12. push or a pull
  13. gravity
  14. a pull
  15. 540
  16. a compass needle turns
  17. friction
  18. gravity
  19. False
  20. muscular force
  21. False
  22. False
  23. 55
  24. 14
  25. to the left
  26. a pull
  27. 150
  28. a push
  29. to the right
  30. friction
  31. 33
  32. a push
  33. 55
  34. a pull
  35. to the right
  36. True
  37. True
  38. 15
  39. newton (N)
  40. rubbing hands warms them

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