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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 631 · 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.💪 A force is a … (a) unit of time (b) push or a pull (c) type of sound (d) kind of colour
  2. 2.💪 Which force is at work: a compass needle turns? (a) gravity (b) muscular force (c) magnetic force (d) friction
  3. 3.💪 Which force is at work: pedalling a cycle? (a) magnetic force (b) muscular force (c) gravity (d) friction
  4. 4.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  5. 5.💪 A box weighs 490 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  6. 6.Which of these is caused by magnetic force? (a) a rolling ball slows (b) an apple falls down (c) a fridge magnet sticks (d) squeezing a lemon
  7. 7.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) friction (c) gravity (d) muscular force
  8. 8.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  9. 9.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
  10. 10.True or false: plucking a mango is a pull. (a) True (b) False
  11. 11.💪 In which unit do we measure force? (a) second (s) (b) newton (N) (c) metre (m) (d) litre (L)
  12. 12.True or false: closing a drawer is a push. (a) True (b) False
  13. 13.💪 Which force pulls everything towards the Earth? (a) magnetism (b) wind (c) friction (d) gravity
  14. 14.💪 A bag has a mass of 30 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  15. 15.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
  16. 16.💪 A cart is pulled to the right with 20 N and to the left with 10 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  17. 17.True or false: closing a drawer is a pull. (a) True (b) False
  18. 18.💪 A cart is pulled to the right with 35 N and to the left with 40 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  19. 19.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  20. 20.Which of these is caused by friction? (a) a rolling ball slows (b) squeezing a lemon (c) a magnet picks up pins (d) an apple falls down
  21. 21.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  22. 22.💪 In a tug of war, one team pulls right with 55 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
  23. 23.💪 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?
  24. 24.💪 A bag has a mass of 48 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  25. 25.True or false: drawing up a well bucket is a pull. (a) True (b) False
  26. 26.True or false: hitting a cricket ball is a pull. (a) False (b) True
  27. 27.💪 A bag has a mass of 1 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  28. 28.💪 A cart is pulled to the right with 50 N and to the left with 50 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  29. 29.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its shape (d) change its colour
  30. 30.💪 A cart is pulled to the right with 85 N and to the left with 70 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  31. 31.💪 Two children push a box to the right, one with 10 N and the other with 55 N. What is the net (total) force on the box, in newtons?
  32. 32.💪 A cart is pulled to the right with 25 N and to the left with 15 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  33. 33.💪 Two children push a box to the right, one with 95 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  34. 34.💪 In a tug of war, one team pulls left with 45 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
  35. 35.💪 Which force is at work: rain falls to the ground? (a) friction (b) magnetic force (c) gravity (d) muscular force
  36. 36.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  37. 37.True or false: pushing a trolley is a pull. (a) False (b) True
  38. 38.True or false: pushing a trolley is a push. (a) False (b) True
  39. 39.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  40. 40.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 25 N. What is the size of the net force, in newtons?

Answer key

  1. push or a pull
  2. magnetic force
  3. muscular force
  4. a pull
  5. 49
  6. a fridge magnet sticks
  7. friction
  8. a push
  9. 10
  10. True
  11. newton (N)
  12. True
  13. gravity
  14. 300
  15. 5
  16. to the right
  17. False
  18. to the left
  19. a pull
  20. a rolling ball slows
  21. a push
  22. 15
  23. 5
  24. 480
  25. True
  26. False
  27. 10
  28. no net force
  29. change its colour
  30. to the right
  31. 65
  32. to the right
  33. 180
  34. 15
  35. gravity
  36. a push
  37. False
  38. True
  39. a push
  40. 40

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