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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 1 · 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 can a force NOT do? (a) change its colour (b) stop it moving (c) change its shape (d) start it moving
  2. 2.True or false: pressing a doorbell is a push. (a) False (b) True
  3. 3.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
  4. 4.True or false: plucking a mango is a pull. (a) False (b) True
  5. 5.💪 Two children push a box to the right, one with 40 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  6. 6.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  7. 7.True or false: pushing a swing is a pull. (a) True (b) False
  8. 8.💪 Which force is at work: pedalling a cycle? (a) magnetic force (b) muscular force (c) gravity (d) friction
  9. 9.💪 A box weighs 170 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  10. 10.💪 Which force is at work: an apple falls down? (a) muscular force (b) friction (c) magnetic force (d) gravity
  11. 11.True or false: pulling up your socks is a pull. (a) True (b) False
  12. 12.💪 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?
  13. 13.Which of these is caused by friction? (a) a compass needle turns (b) pedalling a cycle (c) rubbing hands warms them (d) a thrown ball comes down
  14. 14.Which of these is caused by magnetic force? (a) pedalling a cycle (b) rubbing hands warms them (c) a compass needle turns (d) a thrown ball comes down
  15. 15.Which of these is caused by gravity? (a) a thrown ball comes down (b) lifting a school bag (c) squeezing a lemon (d) a fridge magnet sticks
  16. 16.True or false: pushing a trolley is a pull. (a) False (b) True
  17. 17.💪 In a tug of war, one team pulls right with 70 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
  18. 18.💪 In a tug of war, one team pulls left with 90 N and the other pulls right with 80 N. What is the size of the net force, in newtons?
  19. 19.True or false: pulling a cart is a pull. (a) False (b) True
  20. 20.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) gravity (c) magnetic force (d) muscular force
  21. 21.💪 A box weighs 530 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  22. 22.💪 A bag has a mass of 56 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  23. 23.💪 A cart is pulled to the right with 35 N and to the left with 40 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  24. 24.💪 Two children push a box to the right, one with 60 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  25. 25.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
  26. 26.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  27. 27.💪 A box weighs 480 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  28. 28.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  29. 29.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 35 N. What is the size of the net force, in newtons?
  30. 30.True or false: a tug of war is a pull. (a) False (b) True
  31. 31.Which of these is caused by friction? (a) squeezing a lemon (b) a rolling ball slows (c) a thrown ball comes down (d) a compass needle turns
  32. 32.Which of these is caused by muscular force? (a) a magnet picks up pins (b) a rolling ball slows (c) lifting a school bag (d) shoes grip the floor
  33. 33.💪 A cart is pulled to the right with 65 N and to the left with 80 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  34. 34.Which of these is caused by muscular force? (a) a fridge magnet sticks (b) a thrown ball comes down (c) rain falls to the ground (d) pedalling a cycle
  35. 35.True or false: pushing a trolley is a push. (a) True (b) False
  36. 36.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) friction (c) muscular force (d) magnetic force
  37. 37.💪 Two children push a box to the right, one with 25 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  38. 38.💪 Which force is at work: a compass needle turns? (a) magnetic force (b) gravity (c) friction (d) muscular force
  39. 39.Which of these is caused by muscular force? (a) a fridge magnet sticks (b) an apple falls down (c) squeezing a lemon (d) a thrown ball comes down
  40. 40.💪 In which unit do we measure force? (a) metre (m) (b) litre (L) (c) second (s) (d) newton (N)

Answer key

  1. change its colour
  2. True
  3. 60
  4. True
  5. 80
  6. a pull
  7. False
  8. muscular force
  9. 17
  10. gravity
  11. True
  12. 55
  13. rubbing hands warms them
  14. a compass needle turns
  15. a thrown ball comes down
  16. False
  17. 30
  18. 10
  19. True
  20. magnetic force
  21. 53
  22. 560
  23. to the left
  24. 105
  25. 20
  26. a push
  27. 48
  28. a push
  29. 45
  30. True
  31. a rolling ball slows
  32. lifting a school bag
  33. to the left
  34. pedalling a cycle
  35. True
  36. gravity
  37. 40
  38. magnetic force
  39. squeezing a lemon
  40. newton (N)

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