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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 745 · 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.True or false: a tug of war is a pull. (a) False (b) True
  2. 2.💪 A box weighs 400 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  3. 3.💪 Two children push a box to the right, one with 100 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  4. 4.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) unbalanced (c) doubled (d) balanced
  5. 5.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 50 N. What is the size of the net force, in newtons?
  6. 6.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) muscular force (c) magnetic force (d) friction
  7. 7.💪 A box weighs 270 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  8. 8.💪 Which force is at work: an apple falls down? (a) magnetic force (b) muscular force (c) friction (d) gravity
  9. 9.💪 In a tug of war, one team pulls right with 15 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  10. 10.💪 A force is a … (a) type of sound (b) kind of colour (c) push or a pull (d) unit of time
  11. 11.True or false: hitting a cricket ball is a push. (a) True (b) False
  12. 12.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  13. 13.💪 Two children push a box to the right, one with 15 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  14. 14.💪 In which unit do we measure force? (a) metre (m) (b) newton (N) (c) litre (L) (d) second (s)
  15. 15.True or false: pushing a trolley is a pull. (a) False (b) True
  16. 16.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  17. 17.💪 A box weighs 460 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  18. 18.💪 A bag has a mass of 2 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  19. 19.Which of these is caused by magnetic force? (a) pedalling a cycle (b) a magnet picks up pins (c) a rolling ball slows (d) an apple falls down
  20. 20.💪 A bag has a mass of 7 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  21. 21.💪 Two children push a box to the right, one with 75 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  22. 22.💪 A box weighs 160 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  23. 23.💪 A cart is pulled to the right with 40 N and to the left with 40 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  24. 24.💪 Which force is at work: rain falls to the ground? (a) gravity (b) friction (c) muscular force (d) magnetic force
  25. 25.💪 Two children push a box to the right, one with 75 N and the other with 55 N. What is the net (total) force on the box, in newtons?
  26. 26.True or false: pushing a swing is a push. (a) False (b) True
  27. 27.True or false: pulling a cart is a push. (a) True (b) False
  28. 28.💪 Two children push a box to the right, one with 50 N and the other with 75 N. What is the net (total) force on the box, in newtons?
  29. 29.Which of these is caused by gravity? (a) lifting a school bag (b) a river flows downhill (c) a magnet picks up pins (d) rubbing hands warms them
  30. 30.💪 Two children push a box to the right, one with 15 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  31. 31.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  32. 32.Which of these is caused by gravity? (a) squeezing a lemon (b) pedalling a cycle (c) an apple falls down (d) shoes grip the floor
  33. 33.Which of these is caused by friction? (a) a thrown ball comes down (b) a magnet picks up pins (c) a rolling ball slows (d) a river flows downhill
  34. 34.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  35. 35.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) friction (c) gravity (d) magnetic force
  36. 36.True or false: kicking a football is a push. (a) False (b) True
  37. 37.True or false: plucking a mango is a push. (a) True (b) False
  38. 38.True or false: a tug of war is a push. (a) False (b) True
  39. 39.💪 A box weighs 370 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  40. 40.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 35 N. What is the size of the net force, in newtons?

Answer key

  1. True
  2. 40
  3. 130
  4. balanced
  5. 15
  6. gravity
  7. 27
  8. gravity
  9. 5
  10. push or a pull
  11. True
  12. a push
  13. 65
  14. newton (N)
  15. False
  16. a push
  17. 46
  18. 20
  19. a magnet picks up pins
  20. 70
  21. 90
  22. 16
  23. no net force
  24. gravity
  25. 130
  26. True
  27. False
  28. 125
  29. a river flows downhill
  30. 20
  31. a pull
  32. an apple falls down
  33. a rolling ball slows
  34. a push
  35. friction
  36. True
  37. False
  38. False
  39. 37
  40. 45

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