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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 973 · 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 plucking a mango a push or a pull? (a) a pull (b) a push
  2. 2.💪 A force is a … (a) unit of time (b) push or a pull (c) kind of colour (d) type of sound
  3. 3.True or false: pushing a swing is a push. (a) False (b) True
  4. 4.True or false: pushing a trolley is a push. (a) False (b) True
  5. 5.💪 Which can a force NOT do? (a) start it moving (b) change its colour (c) change its shape (d) stop it moving
  6. 6.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  7. 7.Which of these is caused by muscular force? (a) rubbing hands warms them (b) lifting a school bag (c) brakes stop a bicycle (d) a rolling ball slows
  8. 8.Which of these is caused by friction? (a) squeezing a lemon (b) a rolling ball slows (c) a thrown ball comes down (d) a compass needle turns
  9. 9.💪 Two children push a box to the right, one with 95 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  10. 10.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  11. 11.💪 Two children push a box to the right, one with 80 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  12. 12.💪 A bag has a mass of 21 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  13. 13.True or false: a tug of war is a pull. (a) True (b) False
  14. 14.Which of these is caused by gravity? (a) pedalling a cycle (b) shoes grip the floor (c) rain falls to the ground (d) lifting a school bag
  15. 15.💪 Which force is at work: a compass needle turns? (a) gravity (b) magnetic force (c) friction (d) muscular force
  16. 16.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  17. 17.💪 Which force pulls everything towards the Earth? (a) gravity (b) friction (c) magnetism (d) wind
  18. 18.💪 A box weighs 560 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  19. 19.💪 Which force is at work: squeezing a lemon? (a) magnetic force (b) friction (c) gravity (d) muscular force
  20. 20.True or false: closing a drawer is a push. (a) True (b) False
  21. 21.True or false: pulling up your socks is a pull. (a) True (b) False
  22. 22.💪 Two children push a box to the right, one with 25 N and the other with 65 N. What is the net (total) force on the box, in newtons?
  23. 23.💪 Two children push a box to the right, one with 50 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  24. 24.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  25. 25.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) litre (L) (d) newton (N)
  26. 26.Which of these is caused by gravity? (a) pedalling a cycle (b) a magnet picks up pins (c) a thrown ball comes down (d) a rolling ball slows
  27. 27.💪 A cart is pulled to the right with 20 N and to the left with 15 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  28. 28.💪 A bag has a mass of 10 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  29. 29.💪 Two children push a box to the right, one with 45 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  30. 30.💪 Which force is at work: rain falls to the ground? (a) friction (b) muscular force (c) magnetic force (d) gravity
  31. 31.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) magnetic force (c) gravity (d) muscular force
  32. 32.True or false: pressing a doorbell is a push. (a) True (b) False
  33. 33.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  34. 34.💪 Which force is at work: rubbing hands warms them? (a) friction (b) muscular force (c) gravity (d) magnetic force
  35. 35.True or false: opening a drawer is a pull. (a) True (b) False
  36. 36.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  37. 37.True or false: pulling a cart is a push. (a) False (b) True
  38. 38.💪 Which force is at work: an apple falls down? (a) friction (b) magnetic force (c) gravity (d) muscular force
  39. 39.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  40. 40.💪 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 left (b) no net force (c) to the right

Answer key

  1. a pull
  2. push or a pull
  3. True
  4. True
  5. change its colour
  6. a pull
  7. lifting a school bag
  8. a rolling ball slows
  9. 105
  10. a push
  11. 125
  12. 210
  13. True
  14. rain falls to the ground
  15. magnetic force
  16. a push
  17. gravity
  18. 56
  19. muscular force
  20. True
  21. True
  22. 90
  23. 135
  24. a pull
  25. newton (N)
  26. a thrown ball comes down
  27. to the right
  28. 100
  29. 60
  30. gravity
  31. friction
  32. True
  33. a push
  34. friction
  35. True
  36. 80
  37. False
  38. gravity
  39. a pull
  40. to the left

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