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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 487 · 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 force is at work: pedalling a cycle? (a) friction (b) magnetic force (c) gravity (d) muscular force
  2. 2.Which of these is caused by magnetic force? (a) a thrown ball comes down (b) rain falls to the ground (c) squeezing a lemon (d) a magnet picks up pins
  3. 3.💪 A cart is pulled to the right with 55 N and to the left with 55 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  4. 4.Which of these is caused by gravity? (a) a river flows downhill (b) shoes grip the floor (c) a compass needle turns (d) a magnet picks up pins
  5. 5.💪 Which force is at work: a magnet picks up pins? (a) friction (b) muscular force (c) gravity (d) magnetic force
  6. 6.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) a compass needle turns (c) a river flows downhill (d) squeezing a lemon
  7. 7.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  8. 8.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) friction (d) magnetism
  9. 9.True or false: kicking a football is a push. (a) True (b) False
  10. 10.True or false: plucking a mango is a push. (a) False (b) True
  11. 11.💪 In a tug of war, one team pulls right with 55 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
  12. 12.Which of these is caused by magnetic force? (a) a river flows downhill (b) a rolling ball slows (c) a fridge magnet sticks (d) squeezing a lemon
  13. 13.💪 A bag has a mass of 28 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  14. 14.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  15. 15.True or false: pressing a doorbell is a push. (a) True (b) False
  16. 16.💪 Two children push a box to the right, one with 50 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  17. 17.True or false: hitting a cricket ball is a push. (a) False (b) True
  18. 18.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  19. 19.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  20. 20.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  21. 21.💪 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) no net force (c) to the right
  22. 22.True or false: a tug of war is a push. (a) True (b) False
  23. 23.💪 Which force is at work: an apple falls down? (a) friction (b) gravity (c) muscular force (d) magnetic force
  24. 24.💪 A box weighs 220 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  25. 25.💪 A bag has a mass of 10 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  26. 26.True or false: pressing a doorbell is a pull. (a) True (b) False
  27. 27.💪 Which force is at work: a compass needle turns? (a) friction (b) gravity (c) magnetic force (d) muscular force
  28. 28.True or false: pushing a trolley is a push. (a) True (b) False
  29. 29.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  30. 30.True or false: opening a drawer is a pull. (a) False (b) True
  31. 31.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) gravity (c) magnetic force (d) muscular force
  32. 32.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  33. 33.True or false: pushing a swing is a pull. (a) False (b) True
  34. 34.💪 Two children push a box to the right, one with 80 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  35. 35.True or false: closing a drawer is a pull. (a) True (b) False
  36. 36.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) gravity (c) friction (d) muscular force
  37. 37.💪 A cart is pulled to the right with 40 N and to the left with 40 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  38. 38.💪 A bag has a mass of 44 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  39. 39.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  40. 40.💪 A bag has a mass of 21 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

Answer key

  1. muscular force
  2. a magnet picks up pins
  3. no net force
  4. a river flows downhill
  5. magnetic force
  6. squeezing a lemon
  7. a push
  8. gravity
  9. True
  10. False
  11. 35
  12. a fridge magnet sticks
  13. 280
  14. a push
  15. True
  16. 140
  17. True
  18. a pull
  19. a push
  20. 30
  21. to the right
  22. False
  23. gravity
  24. 22
  25. 100
  26. False
  27. magnetic force
  28. True
  29. a push
  30. True
  31. magnetic force
  32. 10
  33. False
  34. 110
  35. False
  36. friction
  37. no net force
  38. 440
  39. a pull
  40. 210

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