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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 108 · 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: opening a drawer is a push. (a) True (b) False
  2. 2.Which of these is caused by magnetic force? (a) shoes grip the floor (b) a magnet picks up pins (c) lifting a school bag (d) a thrown ball comes down
  3. 3.💪 A bag has a mass of 51 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  4. 4.💪 A bag has a mass of 16 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  5. 5.True or false: closing a drawer is a push. (a) True (b) False
  6. 6.💪 A box weighs 70 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  7. 7.💪 A box weighs 310 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  8. 8.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  9. 9.💪 A bag has a mass of 1 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  10. 10.Which of these is caused by magnetic force? (a) a compass needle turns (b) lifting a school bag (c) a rolling ball slows (d) an apple falls down
  11. 11.True or false: pulling up your socks is a pull. (a) False (b) True
  12. 12.💪 Which force is at work: a magnet picks up pins? (a) friction (b) muscular force (c) magnetic force (d) gravity
  13. 13.💪 A cart is pulled to the right with 60 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
  14. 14.True or false: pushing a trolley is a pull. (a) True (b) False
  15. 15.Which of these is caused by friction? (a) a fridge magnet sticks (b) brakes stop a bicycle (c) a compass needle turns (d) rain falls to the ground
  16. 16.💪 A bag has a mass of 4 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  17. 17.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  18. 18.True or false: a tug of war is a pull. (a) False (b) True
  19. 19.💪 A cart is pulled to the right with 95 N and to the left with 95 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  20. 20.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  21. 21.💪 Which force is at work: a compass needle turns? (a) muscular force (b) magnetic force (c) gravity (d) friction
  22. 22.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  23. 23.True or false: pressing a doorbell is a push. (a) False (b) True
  24. 24.True or false: pulling a cart is a push. (a) False (b) True
  25. 25.💪 A bag has a mass of 39 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  26. 26.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  27. 27.💪 Two children push a box to the right, one with 100 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  28. 28.💪 A bag has a mass of 53 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  29. 29.💪 In a tug of war, one team pulls left with 20 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  30. 30.Which of these is caused by friction? (a) a river flows downhill (b) an apple falls down (c) lifting a school bag (d) a rolling ball slows
  31. 31.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  32. 32.💪 Which force is at work: pedalling a cycle? (a) magnetic force (b) friction (c) muscular force (d) gravity
  33. 33.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) gravity (c) muscular force (d) friction
  34. 34.💪 A bag has a mass of 12 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  35. 35.💪 A box weighs 190 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  36. 36.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) muscular force (c) friction (d) gravity
  37. 37.💪 Which force is at work: an apple falls down? (a) muscular force (b) magnetic force (c) friction (d) gravity
  38. 38.💪 Which can a force NOT do? (a) change its shape (b) change its colour (c) start it moving (d) stop it moving
  39. 39.💪 A box weighs 150 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  40. 40.💪 A cart is pulled to the right with 30 N and to the left with 35 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force

Answer key

  1. False
  2. a magnet picks up pins
  3. 510
  4. 160
  5. True
  6. 7
  7. 31
  8. 20
  9. 10
  10. a compass needle turns
  11. True
  12. magnetic force
  13. to the left
  14. False
  15. brakes stop a bicycle
  16. 40
  17. a pull
  18. True
  19. no net force
  20. a push
  21. magnetic force
  22. a push
  23. True
  24. False
  25. 390
  26. a push
  27. 195
  28. 530
  29. 5
  30. a rolling ball slows
  31. a pull
  32. muscular force
  33. gravity
  34. 120
  35. 19
  36. muscular force
  37. gravity
  38. change its colour
  39. 15
  40. to the left

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