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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 844 · 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.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  2. 2.💪 In a tug of war, one team pulls right with 15 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  3. 3.💪 Two children push a box to the right, one with 5 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  4. 4.💪 Two children push a box to the right, one with 60 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  5. 5.💪 A bag has a mass of 6 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  6. 6.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  7. 7.💪 Which force pulls everything towards the Earth? (a) gravity (b) magnetism (c) wind (d) friction
  8. 8.💪 A box weighs 60 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  9. 9.💪 Which can a force NOT do? (a) change its shape (b) stop it moving (c) change its colour (d) start it moving
  10. 10.True or false: kicking a football is a pull. (a) True (b) False
  11. 11.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) litre (L) (d) newton (N)
  12. 12.💪 A box weighs 320 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  13. 13.💪 Two children push a box to the right, one with 15 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  14. 14.True or false: closing a drawer is a pull. (a) True (b) False
  15. 15.💪 A cart is pulled to the right with 50 N and to the left with 40 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  16. 16.💪 Which force is at work: a compass needle turns? (a) magnetic force (b) friction (c) muscular force (d) gravity
  17. 17.Which of these is caused by magnetic force? (a) a rolling ball slows (b) shoes grip the floor (c) a thrown ball comes down (d) a compass needle turns
  18. 18.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 65 N. What is the size of the net force, in newtons?
  19. 19.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  20. 20.💪 Two children push a box to the right, one with 30 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  21. 21.💪 Two children push a box to the right, one with 30 N and the other with 100 N. What is the net (total) force on the box, in newtons?
  22. 22.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) friction (c) gravity (d) muscular force
  23. 23.True or false: pressing a doorbell is a push. (a) True (b) False
  24. 24.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) shoes grip the floor (c) a rolling ball slows (d) squeezing a lemon
  25. 25.True or false: pulling a cart is a push. (a) True (b) False
  26. 26.💪 Which force is at work: a rolling ball slows? (a) friction (b) gravity (c) muscular force (d) magnetic force
  27. 27.True or false: hitting a cricket ball is a pull. (a) True (b) False
  28. 28.Which of these is caused by gravity? (a) rubbing hands warms them (b) lifting a school bag (c) rain falls to the ground (d) squeezing a lemon
  29. 29.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  30. 30.Which of these is caused by muscular force? (a) an apple falls down (b) rubbing hands warms them (c) a rolling ball slows (d) pedalling a cycle
  31. 31.Which of these is caused by friction? (a) an apple falls down (b) a rolling ball slows (c) a compass needle turns (d) rain falls to the ground
  32. 32.💪 Two children push a box to the right, one with 45 N and the other with 60 N. What is the net (total) force on the box, in newtons?
  33. 33.Which of these is caused by muscular force? (a) rain falls to the ground (b) a river flows downhill (c) a fridge magnet sticks (d) lifting a school bag
  34. 34.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
  35. 35.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) friction (c) gravity (d) magnetic force
  36. 36.Which of these is caused by gravity? (a) rubbing hands warms them (b) brakes stop a bicycle (c) a magnet picks up pins (d) a river flows downhill
  37. 37.💪 Two children push a box to the right, one with 80 N and the other with 70 N. What is the net (total) force on the box, in newtons?
  38. 38.True or false: pushing a swing is a push. (a) True (b) False
  39. 39.Which of these is caused by gravity? (a) pedalling a cycle (b) lifting a school bag (c) a rolling ball slows (d) an apple falls down
  40. 40.💪 A bag has a mass of 23 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

Answer key

  1. a push
  2. 5
  3. 50
  4. 140
  5. 60
  6. a pull
  7. gravity
  8. 6
  9. change its colour
  10. False
  11. newton (N)
  12. 32
  13. 25
  14. False
  15. to the right
  16. magnetic force
  17. a compass needle turns
  18. 10
  19. 55
  20. 110
  21. 130
  22. muscular force
  23. True
  24. squeezing a lemon
  25. False
  26. friction
  27. False
  28. rain falls to the ground
  29. a pull
  30. pedalling a cycle
  31. a rolling ball slows
  32. 105
  33. lifting a school bag
  34. 60
  35. magnetic force
  36. a river flows downhill
  37. 150
  38. True
  39. an apple falls down
  40. 230

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