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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 553 · 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) type of sound (c) kind of colour (d) push or a pull
  2. 2.💪 In a tug of war, one team pulls left with 55 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  3. 3.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) balanced (c) doubled (d) gravity
  4. 4.Which of these is caused by friction? (a) a compass needle turns (b) lifting a school bag (c) a magnet picks up pins (d) rubbing hands warms them
  5. 5.💪 A bag has a mass of 41 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  6. 6.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) muscular force (c) friction (d) gravity
  7. 7.💪 Which force is at work: a rolling ball slows? (a) gravity (b) friction (c) muscular force (d) magnetic force
  8. 8.💪 Which force is at work: a river flows downhill? (a) friction (b) gravity (c) magnetic force (d) muscular force
  9. 9.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) muscular force (c) friction (d) gravity
  10. 10.True or false: pushing a swing is a push. (a) False (b) True
  11. 11.💪 In a tug of war, one team pulls left with 50 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
  12. 12.💪 A cart is pulled to the right with 100 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
  13. 13.💪 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?
  14. 14.💪 Two children push a box to the right, one with 50 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  15. 15.💪 Which force is at work: a compass needle turns? (a) friction (b) magnetic force (c) gravity (d) muscular force
  16. 16.💪 A cart is pulled to the right with 85 N and to the left with 75 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  17. 17.True or false: closing a drawer is a push. (a) True (b) False
  18. 18.💪 A bag has a mass of 42 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  19. 19.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) gravity (c) magnetic force (d) muscular force
  20. 20.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  21. 21.💪 Two children push a box to the right, one with 60 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  22. 22.💪 A box weighs 330 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  23. 23.True or false: a tug of war is a pull. (a) False (b) True
  24. 24.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  25. 25.Which of these is caused by gravity? (a) a river flows downhill (b) squeezing a lemon (c) brakes stop a bicycle (d) a rolling ball slows
  26. 26.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  27. 27.💪 Two children push a box to the right, one with 40 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  28. 28.💪 A cart is pulled to the right with 65 N and to the left with 60 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  29. 29.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  30. 30.True or false: pulling up your socks is a pull. (a) True (b) False
  31. 31.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  32. 32.True or false: drawing up a well bucket is a push. (a) False (b) True
  33. 33.True or false: hitting a cricket ball is a push. (a) True (b) False
  34. 34.True or false: pulling a cart is a push. (a) True (b) False
  35. 35.Which of these is caused by magnetic force? (a) a rolling ball slows (b) squeezing a lemon (c) a compass needle turns (d) an apple falls down
  36. 36.💪 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 right (b) to the left (c) no net force
  37. 37.💪 Which force is at work: lifting a school bag? (a) gravity (b) magnetic force (c) muscular force (d) friction
  38. 38.💪 Which force is at work: an apple falls down? (a) magnetic force (b) friction (c) muscular force (d) gravity
  39. 39.Which of these is caused by muscular force? (a) a compass needle turns (b) a thrown ball comes down (c) a magnet picks up pins (d) squeezing a lemon
  40. 40.Which of these is caused by gravity? (a) squeezing a lemon (b) an apple falls down (c) a rolling ball slows (d) brakes stop a bicycle

Answer key

  1. push or a pull
  2. 40
  3. balanced
  4. rubbing hands warms them
  5. 410
  6. gravity
  7. friction
  8. gravity
  9. friction
  10. True
  11. 20
  12. to the right
  13. 5
  14. 90
  15. magnetic force
  16. to the right
  17. True
  18. 420
  19. friction
  20. a push
  21. 155
  22. 33
  23. True
  24. a pull
  25. a river flows downhill
  26. a push
  27. 55
  28. to the right
  29. a pull
  30. True
  31. a pull
  32. False
  33. True
  34. False
  35. a compass needle turns
  36. no net force
  37. muscular force
  38. gravity
  39. squeezing a lemon
  40. an apple falls down

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