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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 440 · 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.Which of these is caused by friction? (a) an apple falls down (b) a magnet picks up pins (c) rain falls to the ground (d) shoes grip the floor
  2. 2.💪 A bag has a mass of 30 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  3. 3.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) newton (N) (d) litre (L)
  4. 4.True or false: pulling a cart is a push. (a) False (b) True
  5. 5.💪 Which force is at work: lifting a school bag? (a) gravity (b) friction (c) muscular force (d) magnetic force
  6. 6.💪 A box weighs 270 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  7. 7.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) stop it moving (d) change its colour
  8. 8.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) doubled (c) balanced (d) unbalanced
  9. 9.💪 A bag has a mass of 49 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  10. 10.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  11. 11.True or false: opening a drawer is a push. (a) False (b) True
  12. 12.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 45 N. What is the size of the net force, in newtons?
  13. 13.Which of these is caused by magnetic force? (a) lifting a school bag (b) a compass needle turns (c) squeezing a lemon (d) a river flows downhill
  14. 14.💪 A bag has a mass of 53 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  15. 15.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) muscular force (c) gravity (d) friction
  16. 16.💪 In a tug of war, one team pulls left with 90 N and the other pulls right with 75 N. What is the size of the net force, in newtons?
  17. 17.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  18. 18.True or false: closing a drawer is a push. (a) True (b) False
  19. 19.True or false: a tug of war is a pull. (a) False (b) True
  20. 20.💪 Two children push a box to the right, one with 60 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  21. 21.💪 Which force is at work: squeezing a lemon? (a) friction (b) muscular force (c) gravity (d) magnetic force
  22. 22.💪 A bag has a mass of 8 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  23. 23.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  24. 24.💪 Two children push a box to the right, one with 40 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  25. 25.💪 In a tug of war, one team pulls right with 10 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  26. 26.💪 A cart is pulled to the right with 50 N and to the left with 35 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  27. 27.💪 In a tug of war, one team pulls left with 95 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  28. 28.💪 A cart is pulled to the right with 85 N and to the left with 100 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  29. 29.💪 A cart is pulled to the right with 70 N and to the left with 80 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  30. 30.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
  31. 31.💪 A cart is pulled to the right with 100 N and to the left with 95 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  32. 32.💪 A force is a … (a) type of sound (b) push or a pull (c) unit of time (d) kind of colour
  33. 33.Which of these is caused by friction? (a) an apple falls down (b) lifting a school bag (c) rubbing hands warms them (d) squeezing a lemon
  34. 34.💪 Two children push a box to the right, one with 10 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  35. 35.💪 Two children push a box to the right, one with 25 N and the other with 75 N. What is the net (total) force on the box, in newtons?
  36. 36.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  37. 37.Which of these is caused by gravity? (a) a magnet picks up pins (b) a compass needle turns (c) a thrown ball comes down (d) a rolling ball slows
  38. 38.💪 A bag has a mass of 14 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  39. 39.True or false: pressing a doorbell is a pull. (a) True (b) False
  40. 40.True or false: pushing a trolley is a push. (a) False (b) True

Answer key

  1. shoes grip the floor
  2. 300
  3. newton (N)
  4. False
  5. muscular force
  6. 27
  7. change its colour
  8. balanced
  9. 490
  10. a push
  11. False
  12. 35
  13. a compass needle turns
  14. 530
  15. gravity
  16. 15
  17. a push
  18. True
  19. True
  20. 70
  21. muscular force
  22. 80
  23. a pull
  24. 120
  25. 5
  26. to the right
  27. 80
  28. to the left
  29. to the left
  30. 70
  31. to the right
  32. push or a pull
  33. rubbing hands warms them
  34. 105
  35. 100
  36. a push
  37. a thrown ball comes down
  38. 140
  39. False
  40. True

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