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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 578 · 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 of these is caused by friction? (a) lifting a school bag (b) shoes grip the floor (c) a magnet picks up pins (d) an apple falls down
  2. 2.💪 A box weighs 530 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  3. 3.Which of these is caused by magnetic force? (a) an apple falls down (b) a compass needle turns (c) a rolling ball slows (d) rain falls to the ground
  4. 4.💪 Which force is at work: a compass needle turns? (a) muscular force (b) magnetic force (c) friction (d) gravity
  5. 5.True or false: plucking a mango is a pull. (a) False (b) True
  6. 6.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  7. 7.True or false: opening a drawer is a pull. (a) False (b) True
  8. 8.Which of these is caused by gravity? (a) a fridge magnet sticks (b) rubbing hands warms them (c) a magnet picks up pins (d) a river flows downhill
  9. 9.💪 A bag has a mass of 35 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  10. 10.💪 A bag has a mass of 3 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  11. 11.True or false: a tug of war is a push. (a) True (b) False
  12. 12.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  13. 13.True or false: opening a drawer is a push. (a) False (b) True
  14. 14.💪 Two children push a box to the right, one with 85 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  15. 15.True or false: pushing a swing is a push. (a) False (b) True
  16. 16.💪 Two children push a box to the right, one with 65 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  17. 17.💪 Which force pulls everything towards the Earth? (a) gravity (b) wind (c) magnetism (d) friction
  18. 18.True or false: pushing a swing is a pull. (a) True (b) False
  19. 19.True or false: drawing up a well bucket is a pull. (a) False (b) True
  20. 20.True or false: kicking a football is a push. (a) False (b) True
  21. 21.💪 A bag has a mass of 55 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  22. 22.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) doubled (c) balanced (d) gravity
  23. 23.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  24. 24.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  25. 25.💪 Which force is at work: rain falls to the ground? (a) friction (b) magnetic force (c) muscular force (d) gravity
  26. 26.Which of these is caused by gravity? (a) rain falls to the ground (b) a compass needle turns (c) a rolling ball slows (d) a magnet picks up pins
  27. 27.💪 A bag has a mass of 27 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  28. 28.💪 Which can a force NOT do? (a) start it moving (b) change its shape (c) stop it moving (d) change its colour
  29. 29.Which of these is caused by friction? (a) rain falls to the ground (b) brakes stop a bicycle (c) a thrown ball comes down (d) a magnet picks up pins
  30. 30.💪 In a tug of war, one team pulls left with 55 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  31. 31.💪 Two children push a box to the right, one with 85 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  32. 32.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  33. 33.True or false: a tug of war is a pull. (a) True (b) False
  34. 34.💪 Which force is at work: shoes grip the floor? (a) friction (b) muscular force (c) gravity (d) magnetic force
  35. 35.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  36. 36.True or false: closing a drawer is a pull. (a) True (b) False
  37. 37.True or false: drawing up a well bucket is a push. (a) False (b) True
  38. 38.💪 In which unit do we measure force? (a) litre (L) (b) metre (m) (c) newton (N) (d) second (s)
  39. 39.💪 Which force is at work: lifting a school bag? (a) muscular force (b) gravity (c) magnetic force (d) friction
  40. 40.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull

Answer key

  1. shoes grip the floor
  2. 53
  3. a compass needle turns
  4. magnetic force
  5. True
  6. a push
  7. True
  8. a river flows downhill
  9. 350
  10. 30
  11. False
  12. a pull
  13. False
  14. 110
  15. True
  16. 110
  17. gravity
  18. False
  19. True
  20. True
  21. 550
  22. balanced
  23. a pull
  24. a push
  25. gravity
  26. rain falls to the ground
  27. 270
  28. change its colour
  29. brakes stop a bicycle
  30. 40
  31. 125
  32. a pull
  33. True
  34. friction
  35. a pull
  36. False
  37. False
  38. newton (N)
  39. muscular force
  40. a push

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