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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 739 · 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.💪 Two children push a box to the right, one with 90 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  2. 2.Which of these is caused by friction? (a) pedalling a cycle (b) a thrown ball comes down (c) squeezing a lemon (d) shoes grip the floor
  3. 3.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
  4. 4.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  5. 5.💪 Which force is at work: a fridge magnet sticks? (a) magnetic force (b) friction (c) gravity (d) muscular force
  6. 6.💪 Two children push a box to the right, one with 95 N and the other with 75 N. What is the net (total) force on the box, in newtons?
  7. 7.True or false: pushing a trolley is a pull. (a) False (b) True
  8. 8.Which of these is caused by gravity? (a) a rolling ball slows (b) brakes stop a bicycle (c) squeezing a lemon (d) an apple falls down
  9. 9.Which of these is caused by magnetic force? (a) shoes grip the floor (b) a fridge magnet sticks (c) brakes stop a bicycle (d) rain falls to the ground
  10. 10.💪 A box weighs 270 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  11. 11.True or false: pulling a cart is a push. (a) True (b) False
  12. 12.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  13. 13.Which of these is caused by muscular force? (a) lifting a school bag (b) a thrown ball comes down (c) a compass needle turns (d) shoes grip the floor
  14. 14.💪 Two children push a box to the right, one with 30 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  15. 15.True or false: drawing up a well bucket is a pull. (a) True (b) False
  16. 16.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  17. 17.💪 Which force is at work: lifting a school bag? (a) friction (b) gravity (c) magnetic force (d) muscular force
  18. 18.💪 A bag has a mass of 27 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  19. 19.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  20. 20.💪 Which force is at work: rain falls to the ground? (a) gravity (b) muscular force (c) magnetic force (d) friction
  21. 21.Which of these is caused by gravity? (a) a fridge magnet sticks (b) shoes grip the floor (c) squeezing a lemon (d) rain falls to the ground
  22. 22.True or false: hitting a cricket ball is a push. (a) False (b) True
  23. 23.💪 Two children push a box to the right, one with 100 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  24. 24.💪 A box weighs 360 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  25. 25.True or false: plucking a mango is a push. (a) False (b) True
  26. 26.Which of these is caused by magnetic force? (a) a thrown ball comes down (b) shoes grip the floor (c) pedalling a cycle (d) a magnet picks up pins
  27. 27.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) friction (c) gravity (d) magnetic force
  28. 28.True or false: pressing a doorbell is a pull. (a) False (b) True
  29. 29.💪 Which force is at work: a compass needle turns? (a) gravity (b) magnetic force (c) muscular force (d) friction
  30. 30.💪 A cart is pulled to the right with 40 N and to the left with 35 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  31. 31.💪 A box weighs 460 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  32. 32.💪 In a tug of war, one team pulls left with 45 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  33. 33.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 85 N. What is the size of the net force, in newtons?
  34. 34.💪 A cart is pulled to the right with 30 N and to the left with 20 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  35. 35.💪 A bag has a mass of 42 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  36. 36.💪 A bag has a mass of 4 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  37. 37.True or false: drawing up a well bucket is a push. (a) True (b) False
  38. 38.True or false: pushing a swing is a push. (a) True (b) False
  39. 39.💪 Which can a force NOT do? (a) start it moving (b) change its colour (c) change its shape (d) stop it moving
  40. 40.💪 Two children push a box to the right, one with 35 N and the other with 65 N. What is the net (total) force on the box, in newtons?

Answer key

  1. 125
  2. shoes grip the floor
  3. 5
  4. a push
  5. magnetic force
  6. 170
  7. False
  8. an apple falls down
  9. a fridge magnet sticks
  10. 27
  11. False
  12. a pull
  13. lifting a school bag
  14. 125
  15. True
  16. a push
  17. muscular force
  18. 270
  19. a pull
  20. gravity
  21. rain falls to the ground
  22. True
  23. 190
  24. 36
  25. False
  26. a magnet picks up pins
  27. magnetic force
  28. False
  29. magnetic force
  30. to the right
  31. 46
  32. 30
  33. 15
  34. to the right
  35. 420
  36. 40
  37. False
  38. True
  39. change its colour
  40. 100

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