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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 125 · 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.💪 A bag has a mass of 49 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  2. 2.💪 A bag has a mass of 28 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  3. 3.💪 A cart is pulled to the right with 35 N and to the left with 35 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  4. 4.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  5. 5.💪 In which unit do we measure force? (a) newton (N) (b) metre (m) (c) second (s) (d) litre (L)
  6. 6.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  7. 7.💪 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?
  8. 8.Which of these is caused by muscular force? (a) a compass needle turns (b) a river flows downhill (c) an apple falls down (d) pedalling a cycle
  9. 9.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) gravity (c) friction (d) muscular force
  10. 10.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  11. 11.💪 A bag has a mass of 34 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  12. 12.Which of these is caused by friction? (a) lifting a school bag (b) a magnet picks up pins (c) squeezing a lemon (d) rubbing hands warms them
  13. 13.True or false: plucking a mango is a push. (a) True (b) False
  14. 14.Which of these is caused by muscular force? (a) squeezing a lemon (b) an apple falls down (c) a rolling ball slows (d) rain falls to the ground
  15. 15.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) friction (c) gravity (d) muscular force
  16. 16.💪 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) to the left (b) to the right (c) no net force
  17. 17.True or false: kicking a football is a push. (a) False (b) True
  18. 18.💪 Which force is at work: a thrown ball comes down? (a) friction (b) gravity (c) muscular force (d) magnetic force
  19. 19.💪 Which force is at work: an apple falls down? (a) gravity (b) friction (c) magnetic force (d) muscular force
  20. 20.Which of these is caused by friction? (a) a fridge magnet sticks (b) pedalling a cycle (c) lifting a school bag (d) shoes grip the floor
  21. 21.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  22. 22.💪 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 left (b) no net force (c) to the right
  23. 23.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  24. 24.💪 A box weighs 130 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  25. 25.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  26. 26.💪 A cart is pulled to the right with 60 N and to the left with 60 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  27. 27.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  28. 28.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) gravity (c) unbalanced (d) balanced
  29. 29.💪 A cart is pulled to the right with 40 N and to the left with 25 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  30. 30.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  31. 31.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  32. 32.💪 A bag has a mass of 1 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  33. 33.💪 Which force pulls everything towards the Earth? (a) gravity (b) friction (c) magnetism (d) wind
  34. 34.💪 A bag has a mass of 6 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  35. 35.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  36. 36.💪 A bag has a mass of 15 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  37. 37.💪 A box weighs 450 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  38. 38.💪 Two children push a box to the right, one with 40 N and the other with 100 N. What is the net (total) force on the box, in newtons?
  39. 39.💪 Two children push a box to the right, one with 65 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  40. 40.Which of these is caused by muscular force? (a) a river flows downhill (b) a magnet picks up pins (c) lifting a school bag (d) a rolling ball slows

Answer key

  1. 490
  2. 280
  3. no net force
  4. a pull
  5. newton (N)
  6. 60
  7. 20
  8. pedalling a cycle
  9. friction
  10. a push
  11. 340
  12. rubbing hands warms them
  13. False
  14. squeezing a lemon
  15. friction
  16. to the left
  17. True
  18. gravity
  19. gravity
  20. shoes grip the floor
  21. a push
  22. to the left
  23. a push
  24. 13
  25. a pull
  26. no net force
  27. a pull
  28. balanced
  29. to the right
  30. a push
  31. a pull
  32. 10
  33. gravity
  34. 60
  35. a push
  36. 150
  37. 45
  38. 140
  39. 75
  40. lifting a school bag

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