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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 737 · 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 pulling up your socks a push or a pull? (a) a push (b) a pull
  2. 2.True or false: pushing a swing is a push. (a) False (b) True
  3. 3.💪 Which force is at work: a river flows downhill? (a) gravity (b) friction (c) muscular force (d) magnetic force
  4. 4.True or false: plucking a mango is a pull. (a) True (b) False
  5. 5.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  6. 6.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) friction (c) gravity (d) muscular force
  7. 7.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) friction (c) muscular force (d) gravity
  8. 8.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  9. 9.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  10. 10.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  11. 11.💪 Two children push a box to the right, one with 35 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  12. 12.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) doubled (c) gravity (d) balanced
  13. 13.True or false: pushing a trolley is a pull. (a) False (b) True
  14. 14.True or false: kicking a football is a push. (a) True (b) False
  15. 15.💪 Which can a force NOT do? (a) start it moving (b) change its colour (c) stop it moving (d) change its shape
  16. 16.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) muscular force (c) magnetic force (d) gravity
  17. 17.True or false: plucking a mango is a push. (a) True (b) False
  18. 18.💪 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?
  19. 19.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) squeezing a lemon (c) a rolling ball slows (d) lifting a school bag
  20. 20.💪 A bag has a mass of 10 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  21. 21.Which of these is caused by gravity? (a) rain falls to the ground (b) squeezing a lemon (c) brakes stop a bicycle (d) a compass needle turns
  22. 22.💪 Two children push a box to the right, one with 35 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  23. 23.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  24. 24.💪 A box weighs 300 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  25. 25.💪 Two children push a box to the right, one with 5 N and the other with 60 N. What is the net (total) force on the box, in newtons?
  26. 26.True or false: pressing a doorbell is a push. (a) False (b) True
  27. 27.💪 A bag has a mass of 16 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  28. 28.💪 Which force pulls everything towards the Earth? (a) wind (b) magnetism (c) gravity (d) friction
  29. 29.True or false: closing a drawer is a pull. (a) True (b) False
  30. 30.Which of these is caused by gravity? (a) pedalling a cycle (b) a rolling ball slows (c) squeezing a lemon (d) an apple falls down
  31. 31.Which of these is caused by friction? (a) an apple falls down (b) rubbing hands warms them (c) a fridge magnet sticks (d) a compass needle turns
  32. 32.Which of these is caused by muscular force? (a) a magnet picks up pins (b) a fridge magnet sticks (c) lifting a school bag (d) an apple falls down
  33. 33.True or false: opening a drawer is a push. (a) True (b) False
  34. 34.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) gravity (c) friction (d) magnetic force
  35. 35.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) magnetic force (c) gravity (d) friction
  36. 36.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  37. 37.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  38. 38.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  39. 39.True or false: opening a drawer is a pull. (a) True (b) False
  40. 40.True or false: a tug of war is a pull. (a) False (b) True

Answer key

  1. a pull
  2. True
  3. gravity
  4. True
  5. a push
  6. muscular force
  7. friction
  8. a pull
  9. a push
  10. a pull
  11. 85
  12. balanced
  13. False
  14. True
  15. change its colour
  16. magnetic force
  17. False
  18. 5
  19. a magnet picks up pins
  20. 100
  21. rain falls to the ground
  22. 115
  23. a pull
  24. 30
  25. 65
  26. True
  27. 160
  28. gravity
  29. False
  30. an apple falls down
  31. rubbing hands warms them
  32. lifting a school bag
  33. False
  34. gravity
  35. friction
  36. 60
  37. a pull
  38. a push
  39. True
  40. True

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