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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 845 · 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 can a force NOT do? (a) start it moving (b) stop it moving (c) change its colour (d) change its shape
  2. 2.True or false: pushing a swing is a pull. (a) False (b) True
  3. 3.Which of these is caused by gravity? (a) a magnet picks up pins (b) a thrown ball comes down (c) brakes stop a bicycle (d) pedalling a cycle
  4. 4.Which of these is caused by muscular force? (a) a river flows downhill (b) a compass needle turns (c) rubbing hands warms them (d) squeezing a lemon
  5. 5.💪 Which force is at work: a river flows downhill? (a) gravity (b) magnetic force (c) friction (d) muscular force
  6. 6.💪 A bag has a mass of 22 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  7. 7.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) friction (c) muscular force (d) gravity
  8. 8.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  9. 9.Which of these is caused by gravity? (a) shoes grip the floor (b) lifting a school bag (c) rain falls to the ground (d) brakes stop a bicycle
  10. 10.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  11. 11.True or false: opening a drawer is a push. (a) True (b) False
  12. 12.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  13. 13.Which of these is caused by gravity? (a) a rolling ball slows (b) squeezing a lemon (c) an apple falls down (d) brakes stop a bicycle
  14. 14.💪 A box weighs 40 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  15. 15.💪 A bag has a mass of 33 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  16. 16.True or false: pulling up your socks is a pull. (a) False (b) True
  17. 17.💪 In which unit do we measure force? (a) litre (L) (b) metre (m) (c) newton (N) (d) second (s)
  18. 18.True or false: pushing a swing is a push. (a) False (b) True
  19. 19.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  20. 20.💪 In a tug of war, one team pulls left with 55 N and the other pulls right with 45 N. What is the size of the net force, in newtons?
  21. 21.💪 Which force is at work: squeezing a lemon? (a) gravity (b) magnetic force (c) friction (d) muscular force
  22. 22.💪 Which force is at work: an apple falls down? (a) magnetic force (b) gravity (c) muscular force (d) friction
  23. 23.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) muscular force (c) friction (d) gravity
  24. 24.💪 Which force is at work: a thrown ball comes down? (a) friction (b) magnetic force (c) gravity (d) muscular force
  25. 25.💪 A force is a … (a) unit of time (b) type of sound (c) push or a pull (d) kind of colour
  26. 26.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  27. 27.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) gravity (c) magnetic force (d) muscular force
  28. 28.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  29. 29.💪 A bag has a mass of 45 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  30. 30.True or false: kicking a football is a pull. (a) False (b) True
  31. 31.Which of these is caused by muscular force? (a) pedalling a cycle (b) a thrown ball comes down (c) brakes stop a bicycle (d) a compass needle turns
  32. 32.True or false: closing a drawer is a push. (a) True (b) False
  33. 33.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) gravity (c) magnetic force (d) friction
  34. 34.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  35. 35.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) gravity (c) balanced (d) unbalanced
  36. 36.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) magnetic force (c) gravity (d) friction
  37. 37.💪 Two children push a box to the right, one with 100 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  38. 38.💪 Which force pulls everything towards the Earth? (a) magnetism (b) wind (c) gravity (d) friction
  39. 39.💪 Two children push a box to the right, one with 100 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  40. 40.True or false: pressing a doorbell is a pull. (a) True (b) False

Answer key

  1. change its colour
  2. False
  3. a thrown ball comes down
  4. squeezing a lemon
  5. gravity
  6. 220
  7. muscular force
  8. a push
  9. rain falls to the ground
  10. a push
  11. False
  12. a push
  13. an apple falls down
  14. 4
  15. 330
  16. True
  17. newton (N)
  18. True
  19. a pull
  20. 10
  21. muscular force
  22. gravity
  23. friction
  24. gravity
  25. push or a pull
  26. a push
  27. friction
  28. a push
  29. 450
  30. False
  31. pedalling a cycle
  32. True
  33. muscular force
  34. 70
  35. balanced
  36. friction
  37. 140
  38. gravity
  39. 180
  40. False

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