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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 93 · 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: pulling a cart is a pull. (a) False (b) True
  2. 2.💪 A box weighs 600 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  3. 3.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  4. 4.💪 Which force is at work: shoes grip the floor? (a) friction (b) muscular force (c) gravity (d) magnetic force
  5. 5.True or false: hitting a cricket ball is a push. (a) False (b) True
  6. 6.💪 A force is a … (a) kind of colour (b) unit of time (c) push or a pull (d) type of sound
  7. 7.💪 Two children push a box to the right, one with 5 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  8. 8.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  9. 9.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 70 N. What is the size of the net force, in newtons?
  10. 10.💪 Two children push a box to the right, one with 85 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  11. 11.Which of these is caused by magnetic force? (a) shoes grip the floor (b) pedalling a cycle (c) a compass needle turns (d) a rolling ball slows
  12. 12.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) gravity (c) magnetic force (d) muscular force
  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 left (b) to the right (c) no net force
  14. 14.💪 A bag has a mass of 40 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  15. 15.True or false: pushing a swing is a pull. (a) True (b) False
  16. 16.True or false: drawing up a well bucket is a push. (a) True (b) False
  17. 17.💪 A cart is pulled to the right with 95 N and to the left with 100 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  18. 18.💪 A box weighs 180 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  19. 19.💪 Which can a force NOT do? (a) change its colour (b) change its shape (c) start it moving (d) stop it moving
  20. 20.💪 Two children push a box to the right, one with 10 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  21. 21.💪 A bag has a mass of 12 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  22. 22.💪 Which force is at work: a river flows downhill? (a) gravity (b) friction (c) muscular force (d) magnetic force
  23. 23.💪 Which force is at work: lifting a school bag? (a) gravity (b) friction (c) magnetic force (d) muscular force
  24. 24.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  25. 25.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  26. 26.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 60 N. What is the size of the net force, in newtons?
  27. 27.💪 Which force is at work: a compass needle turns? (a) magnetic force (b) friction (c) gravity (d) muscular force
  28. 28.💪 A box weighs 130 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  29. 29.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  30. 30.Which of these is caused by muscular force? (a) a compass needle turns (b) shoes grip the floor (c) pedalling a cycle (d) rubbing hands warms them
  31. 31.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) gravity (c) friction (d) magnetic force
  32. 32.True or false: pushing a trolley is a pull. (a) False (b) True
  33. 33.Which of these is caused by magnetic force? (a) squeezing a lemon (b) a rolling ball slows (c) a magnet picks up pins (d) an apple falls down
  34. 34.💪 A bag has a mass of 11 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  35. 35.💪 In a tug of war, one team pulls right with 55 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
  36. 36.True or false: kicking a football is a pull. (a) False (b) True
  37. 37.Which of these is caused by gravity? (a) shoes grip the floor (b) squeezing a lemon (c) a magnet picks up pins (d) an apple falls down
  38. 38.Which of these is caused by friction? (a) a rolling ball slows (b) squeezing a lemon (c) a thrown ball comes down (d) lifting a school bag
  39. 39.💪 Two children push a box to the right, one with 5 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  40. 40.💪 Two children push a box to the right, one with 40 N and the other with 55 N. What is the net (total) force on the box, in newtons?

Answer key

  1. True
  2. 60
  3. 10
  4. friction
  5. True
  6. push or a pull
  7. 30
  8. a pull
  9. 20
  10. 175
  11. a compass needle turns
  12. friction
  13. to the left
  14. 400
  15. False
  16. False
  17. to the left
  18. 18
  19. change its colour
  20. 45
  21. 120
  22. gravity
  23. muscular force
  24. a pull
  25. a pull
  26. 20
  27. magnetic force
  28. 13
  29. a push
  30. pedalling a cycle
  31. magnetic force
  32. False
  33. a magnet picks up pins
  34. 110
  35. 15
  36. False
  37. an apple falls down
  38. a rolling ball slows
  39. 15
  40. 95

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