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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 875 · 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) change its colour (b) stop it moving (c) change its shape (d) start it moving
  2. 2.Which of these is caused by friction? (a) a river flows downhill (b) squeezing a lemon (c) a fridge magnet sticks (d) brakes stop a bicycle
  3. 3.💪 Which force is at work: pedalling a cycle? (a) gravity (b) friction (c) muscular force (d) magnetic force
  4. 4.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) newton (N) (d) litre (L)
  5. 5.Which of these is caused by friction? (a) rain falls to the ground (b) a fridge magnet sticks (c) an apple falls down (d) rubbing hands warms them
  6. 6.True or false: pushing a swing is a pull. (a) True (b) False
  7. 7.💪 A box weighs 120 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  8. 8.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) gravity (c) friction (d) muscular force
  9. 9.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) unbalanced (c) gravity (d) doubled
  10. 10.💪 Which force pulls everything towards the Earth? (a) gravity (b) friction (c) wind (d) magnetism
  11. 11.💪 Two children push a box to the right, one with 30 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  12. 12.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  13. 13.True or false: a tug of war is a pull. (a) False (b) True
  14. 14.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) magnetic force (c) friction (d) gravity
  15. 15.💪 A box weighs 590 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  16. 16.💪 In a tug of war, one team pulls left with 100 N and the other pulls right with 70 N. What is the size of the net force, in newtons?
  17. 17.💪 In a tug of war, one team pulls right with 40 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  18. 18.💪 A cart is pulled to the right with 75 N and to the left with 70 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  19. 19.True or false: pressing a doorbell is a pull. (a) False (b) True
  20. 20.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  21. 21.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  22. 22.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  23. 23.💪 A force is a … (a) kind of colour (b) push or a pull (c) unit of time (d) type of sound
  24. 24.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  25. 25.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) gravity (c) magnetic force (d) muscular force
  26. 26.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  27. 27.True or false: opening a drawer is a push. (a) False (b) True
  28. 28.💪 In a tug of war, one team pulls right with 60 N and the other pulls left with 30 N. What is the size of the net force, in newtons?
  29. 29.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) gravity (c) friction (d) magnetic force
  30. 30.True or false: plucking a mango is a push. (a) False (b) True
  31. 31.💪 Which force is at work: lifting a school bag? (a) friction (b) magnetic force (c) muscular force (d) gravity
  32. 32.💪 Which force is at work: an apple falls down? (a) muscular force (b) magnetic force (c) friction (d) gravity
  33. 33.💪 A box weighs 10 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  34. 34.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) magnetic force (c) gravity (d) friction
  35. 35.💪 A cart is pulled to the right with 65 N and to the left with 75 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  36. 36.💪 Two children push a box to the right, one with 50 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  37. 37.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) muscular force (c) friction (d) gravity
  38. 38.Which of these is caused by gravity? (a) rain falls to the ground (b) pedalling a cycle (c) a rolling ball slows (d) a magnet picks up pins
  39. 39.True or false: pressing a doorbell is a push. (a) False (b) True
  40. 40.💪 Two children push a box to the right, one with 10 N and the other with 60 N. What is the net (total) force on the box, in newtons?

Answer key

  1. change its colour
  2. brakes stop a bicycle
  3. muscular force
  4. newton (N)
  5. rubbing hands warms them
  6. False
  7. 12
  8. gravity
  9. balanced
  10. gravity
  11. 45
  12. a pull
  13. True
  14. friction
  15. 59
  16. 30
  17. 30
  18. to the right
  19. False
  20. a push
  21. a pull
  22. a push
  23. push or a pull
  24. a pull
  25. magnetic force
  26. a pull
  27. False
  28. 30
  29. gravity
  30. False
  31. muscular force
  32. gravity
  33. 1
  34. friction
  35. to the left
  36. 140
  37. friction
  38. rain falls to the ground
  39. True
  40. 70

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