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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 401 · 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.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) newton (N) (d) litre (L)
  2. 2.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) balanced (c) gravity (d) doubled
  3. 3.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  4. 4.💪 In a tug of war, one team pulls left with 55 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  5. 5.Which of these is caused by gravity? (a) rubbing hands warms them (b) shoes grip the floor (c) a river flows downhill (d) a rolling ball slows
  6. 6.💪 A box weighs 350 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  7. 7.True or false: pulling up your socks is a push. (a) True (b) False
  8. 8.True or false: hitting a cricket ball is a push. (a) False (b) True
  9. 9.💪 Two children push a box to the right, one with 85 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  10. 10.💪 In a tug of war, one team pulls right with 85 N and the other pulls left with 45 N. What is the size of the net force, in newtons?
  11. 11.Which of these is caused by friction? (a) lifting a school bag (b) an apple falls down (c) a rolling ball slows (d) rain falls to the ground
  12. 12.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) magnetism (d) friction
  13. 13.💪 A bag has a mass of 9 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  14. 14.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  15. 15.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  16. 16.True or false: opening a drawer is a pull. (a) True (b) False
  17. 17.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  18. 18.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) gravity (c) friction (d) muscular force
  19. 19.💪 In a tug of war, one team pulls right with 85 N and the other pulls left with 30 N. What is the size of the net force, in newtons?
  20. 20.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) magnetic force (c) friction (d) gravity
  21. 21.True or false: pressing a doorbell is a pull. (a) False (b) True
  22. 22.💪 Two children push a box to the right, one with 10 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  23. 23.Which of these is caused by friction? (a) rubbing hands warms them (b) a magnet picks up pins (c) a thrown ball comes down (d) pedalling a cycle
  24. 24.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  25. 25.💪 A cart is pulled to the right with 45 N and to the left with 35 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  26. 26.💪 A bag has a mass of 26 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  27. 27.💪 Two children push a box to the right, one with 65 N and the other with 70 N. What is the net (total) force on the box, in newtons?
  28. 28.True or false: plucking a mango is a pull. (a) True (b) False
  29. 29.True or false: closing a drawer is a pull. (a) True (b) False
  30. 30.True or false: plucking a mango is a push. (a) False (b) True
  31. 31.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its colour (d) change its shape
  32. 32.True or false: pulling up your socks is a pull. (a) True (b) False
  33. 33.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
  34. 34.Which of these is caused by magnetic force? (a) shoes grip the floor (b) a compass needle turns (c) pedalling a cycle (d) brakes stop a bicycle
  35. 35.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) muscular force (c) magnetic force (d) gravity
  36. 36.Which of these is caused by gravity? (a) squeezing a lemon (b) an apple falls down (c) a rolling ball slows (d) shoes grip the floor
  37. 37.True or false: pressing a doorbell is a push. (a) True (b) False
  38. 38.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  39. 39.💪 A cart is pulled to the right with 85 N and to the left with 90 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  40. 40.Which of these is caused by friction? (a) rain falls to the ground (b) brakes stop a bicycle (c) lifting a school bag (d) a compass needle turns

Answer key

  1. newton (N)
  2. balanced
  3. a pull
  4. 45
  5. a river flows downhill
  6. 35
  7. False
  8. True
  9. 105
  10. 40
  11. a rolling ball slows
  12. gravity
  13. 90
  14. a push
  15. a push
  16. True
  17. a pull
  18. gravity
  19. 55
  20. friction
  21. False
  22. 30
  23. rubbing hands warms them
  24. a pull
  25. to the right
  26. 260
  27. 135
  28. True
  29. False
  30. False
  31. change its colour
  32. True
  33. 10
  34. a compass needle turns
  35. friction
  36. an apple falls down
  37. True
  38. a push
  39. to the left
  40. brakes stop a bicycle

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