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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 868 · 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.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) litre (L) (d) newton (N)
  2. 2.💪 Which force is at work: a magnet picks up pins? (a) magnetic force (b) muscular force (c) gravity (d) friction
  3. 3.Which of these is caused by magnetic force? (a) shoes grip the floor (b) rubbing hands warms them (c) lifting a school bag (d) a magnet picks up pins
  4. 4.💪 A cart is pulled to the right with 35 N and to the left with 45 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  5. 5.💪 Two children push a box to the right, one with 10 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  6. 6.💪 In a tug of war, one team pulls left with 60 N and the other pulls right with 45 N. What is the size of the net force, in newtons?
  7. 7.True or false: kicking a football is a pull. (a) False (b) True
  8. 8.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) muscular force (c) friction (d) gravity
  9. 9.💪 Two children push a box to the right, one with 35 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  10. 10.Which of these is caused by friction? (a) lifting a school bag (b) a thrown ball comes down (c) brakes stop a bicycle (d) a compass needle turns
  11. 11.💪 Which force is at work: squeezing a lemon? (a) friction (b) gravity (c) muscular force (d) magnetic force
  12. 12.True or false: plucking a mango is a push. (a) True (b) False
  13. 13.💪 A box weighs 110 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  14. 14.True or false: pulling up your socks is a pull. (a) False (b) True
  15. 15.True or false: pushing a swing is a pull. (a) True (b) False
  16. 16.True or false: pulling up your socks is a push. (a) True (b) False
  17. 17.💪 A cart is pulled to the right with 20 N and to the left with 10 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  18. 18.Which of these is caused by gravity? (a) a magnet picks up pins (b) rain falls to the ground (c) squeezing a lemon (d) shoes grip the floor
  19. 19.Which of these is caused by gravity? (a) a compass needle turns (b) a river flows downhill (c) pedalling a cycle (d) shoes grip the floor
  20. 20.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  21. 21.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  22. 22.💪 Which force is at work: an apple falls down? (a) magnetic force (b) gravity (c) friction (d) muscular force
  23. 23.💪 A bag has a mass of 4 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  24. 24.Which of these is caused by friction? (a) a magnet picks up pins (b) rain falls to the ground (c) rubbing hands warms them (d) squeezing a lemon
  25. 25.💪 A bag has a mass of 50 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  26. 26.Which of these is caused by gravity? (a) shoes grip the floor (b) a fridge magnet sticks (c) pedalling a cycle (d) an apple falls down
  27. 27.Which of these is caused by muscular force? (a) a magnet picks up pins (b) shoes grip the floor (c) rubbing hands warms them (d) pedalling a cycle
  28. 28.💪 A bag has a mass of 58 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  29. 29.Which of these is caused by muscular force? (a) rain falls to the ground (b) an apple falls down (c) a magnet picks up pins (d) squeezing a lemon
  30. 30.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  31. 31.True or false: pushing a swing is a push. (a) True (b) False
  32. 32.True or false: pressing a doorbell is a pull. (a) True (b) False
  33. 33.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
  34. 34.💪 Two children push a box to the right, one with 40 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  35. 35.💪 In a tug of war, one team pulls left with 100 N and the other pulls right with 45 N. What is the size of the net force, in newtons?
  36. 36.💪 A bag has a mass of 41 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  37. 37.💪 In a tug of war, one team pulls right with 85 N and the other pulls left with 65 N. What is the size of the net force, in newtons?
  38. 38.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 70 N. What is the size of the net force, in newtons?
  39. 39.💪 Which force is at work: a compass needle turns? (a) friction (b) gravity (c) magnetic force (d) muscular force
  40. 40.💪 Two children push a box to the right, one with 10 N and the other with 40 N. What is the net (total) force on the box, in newtons?

Answer key

  1. newton (N)
  2. magnetic force
  3. a magnet picks up pins
  4. to the left
  5. 55
  6. 15
  7. False
  8. gravity
  9. 45
  10. brakes stop a bicycle
  11. muscular force
  12. False
  13. 11
  14. True
  15. False
  16. False
  17. to the right
  18. rain falls to the ground
  19. a river flows downhill
  20. a pull
  21. a push
  22. gravity
  23. 40
  24. rubbing hands warms them
  25. 500
  26. an apple falls down
  27. pedalling a cycle
  28. 580
  29. squeezing a lemon
  30. a pull
  31. True
  32. False
  33. 5
  34. 75
  35. 55
  36. 410
  37. 20
  38. 5
  39. magnetic force
  40. 50

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