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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 426 · 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 a tug of war, one team pulls left with 40 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  2. 2.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  3. 3.💪 A force is a … (a) push or a pull (b) kind of colour (c) type of sound (d) unit of time
  4. 4.True or false: pushing a trolley is a pull. (a) True (b) False
  5. 5.💪 Which force is at work: an apple falls down? (a) magnetic force (b) muscular force (c) gravity (d) friction
  6. 6.💪 A box weighs 320 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  7. 7.True or false: pushing a trolley is a push. (a) False (b) True
  8. 8.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) gravity (c) magnetic force (d) muscular force
  9. 9.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  10. 10.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  11. 11.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
  12. 12.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) balanced (c) doubled (d) gravity
  13. 13.True or false: pulling up your socks is a push. (a) False (b) True
  14. 14.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  15. 15.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) gravity (c) friction (d) muscular force
  16. 16.True or false: pulling up your socks is a pull. (a) True (b) False
  17. 17.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  18. 18.True or false: pressing a doorbell is a push. (a) False (b) True
  19. 19.💪 A bag has a mass of 21 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  20. 20.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  21. 21.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  22. 22.True or false: drawing up a well bucket is a pull. (a) True (b) False
  23. 23.Which of these is caused by muscular force? (a) rubbing hands warms them (b) rain falls to the ground (c) pedalling a cycle (d) a compass needle turns
  24. 24.Which of these is caused by friction? (a) a compass needle turns (b) a thrown ball comes down (c) a river flows downhill (d) a rolling ball slows
  25. 25.💪 Which force is at work: a compass needle turns? (a) friction (b) gravity (c) magnetic force (d) muscular force
  26. 26.💪 In which unit do we measure force? (a) second (s) (b) newton (N) (c) litre (L) (d) metre (m)
  27. 27.💪 Two children push a box to the right, one with 20 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  28. 28.💪 In a tug of war, one team pulls left with 20 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  29. 29.💪 In a tug of war, one team pulls left with 10 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  30. 30.💪 Two children push a box to the right, one with 30 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  31. 31.💪 A box weighs 500 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  32. 32.Which of these is caused by muscular force? (a) shoes grip the floor (b) squeezing a lemon (c) an apple falls down (d) brakes stop a bicycle
  33. 33.True or false: closing a drawer is a push. (a) False (b) True
  34. 34.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  35. 35.True or false: pressing a doorbell is a pull. (a) True (b) False
  36. 36.Which of these is caused by gravity? (a) a rolling ball slows (b) an apple falls down (c) rubbing hands warms them (d) pedalling a cycle
  37. 37.💪 Which force pulls everything towards the Earth? (a) wind (b) magnetism (c) gravity (d) friction
  38. 38.Which of these is caused by magnetic force? (a) an apple falls down (b) a river flows downhill (c) a magnet picks up pins (d) shoes grip the floor
  39. 39.💪 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?
  40. 40.True or false: a tug of war is a push. (a) True (b) False

Answer key

  1. 30
  2. a pull
  3. push or a pull
  4. False
  5. gravity
  6. 32
  7. True
  8. magnetic force
  9. a push
  10. a pull
  11. 25
  12. balanced
  13. False
  14. 40
  15. friction
  16. True
  17. a pull
  18. True
  19. 210
  20. a pull
  21. a push
  22. True
  23. pedalling a cycle
  24. a rolling ball slows
  25. magnetic force
  26. newton (N)
  27. 40
  28. 10
  29. 5
  30. 50
  31. 50
  32. squeezing a lemon
  33. True
  34. a pull
  35. False
  36. an apple falls down
  37. gravity
  38. a magnet picks up pins
  39. 55
  40. False

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