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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 48 · 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 pushing a trolley a push or a pull? (a) a push (b) a pull
  2. 2.Which of these is caused by gravity? (a) a magnet picks up pins (b) a thrown ball comes down (c) a compass needle turns (d) shoes grip the floor
  3. 3.Which of these is caused by friction? (a) shoes grip the floor (b) rain falls to the ground (c) pedalling a cycle (d) a fridge magnet sticks
  4. 4.True or false: a tug of war is a push. (a) True (b) False
  5. 5.True or false: opening a drawer is a pull. (a) False (b) True
  6. 6.True or false: pushing a trolley is a pull. (a) True (b) False
  7. 7.True or false: plucking a mango is a push. (a) False (b) True
  8. 8.Which of these is caused by friction? (a) rubbing hands warms them (b) lifting a school bag (c) a compass needle turns (d) a magnet picks up pins
  9. 9.💪 In a tug of war, one team pulls left with 60 N and the other pulls right with 45 N. What is the size of the net force, in newtons?
  10. 10.💪 A box weighs 70 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  11. 11.True or false: drawing up a well bucket is a push. (a) False (b) True
  12. 12.💪 A bag has a mass of 10 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  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.💪 A bag has a mass of 8 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  15. 15.💪 Which can a force NOT do? (a) start it moving (b) change its colour (c) change its shape (d) stop it moving
  16. 16.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) magnetic force (c) gravity (d) friction
  17. 17.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  18. 18.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  19. 19.True or false: opening a drawer is a push. (a) False (b) True
  20. 20.True or false: closing a drawer is a pull. (a) True (b) False
  21. 21.💪 In a tug of war, one team pulls left with 85 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  22. 22.True or false: pulling a cart is a pull. (a) False (b) True
  23. 23.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  24. 24.True or false: pressing a doorbell is a push. (a) False (b) True
  25. 25.💪 A cart is pulled to the right with 100 N and to the left with 100 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  26. 26.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) gravity (d) magnetism
  27. 27.Which of these is caused by gravity? (a) a compass needle turns (b) a rolling ball slows (c) an apple falls down (d) rubbing hands warms them
  28. 28.💪 Two children push a box to the right, one with 45 N and the other with 70 N. What is the net (total) force on the box, in newtons?
  29. 29.True or false: closing a drawer is a push. (a) True (b) False
  30. 30.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  31. 31.💪 A cart is pulled to the right with 65 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
  32. 32.💪 In a tug of war, one team pulls left with 40 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  33. 33.💪 A cart is pulled to the right with 40 N and to the left with 25 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  34. 34.💪 A bag has a mass of 4 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  35. 35.💪 Two children push a box to the right, one with 5 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  36. 36.💪 Which force is at work: an apple falls down? (a) muscular force (b) gravity (c) friction (d) magnetic force
  37. 37.True or false: pressing a doorbell is a pull. (a) False (b) True
  38. 38.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) friction (c) muscular force (d) magnetic force
  39. 39.💪 Which force is at work: rain falls to the ground? (a) friction (b) muscular force (c) gravity (d) magnetic force
  40. 40.💪 Two children push a box to the right, one with 100 N and the other with 75 N. What is the net (total) force on the box, in newtons?

Answer key

  1. a push
  2. a thrown ball comes down
  3. shoes grip the floor
  4. False
  5. True
  6. False
  7. False
  8. rubbing hands warms them
  9. 15
  10. 7
  11. False
  12. 100
  13. 90
  14. 80
  15. change its colour
  16. gravity
  17. a pull
  18. a push
  19. False
  20. False
  21. 80
  22. True
  23. a pull
  24. True
  25. no net force
  26. gravity
  27. an apple falls down
  28. 115
  29. True
  30. a pull
  31. to the left
  32. 30
  33. to the right
  34. 40
  35. 95
  36. gravity
  37. False
  38. friction
  39. gravity
  40. 175

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