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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 890 · 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 a tug of war, one team pulls right with 65 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  2. 2.💪 Which force is at work: shoes grip the floor? (a) gravity (b) muscular force (c) magnetic force (d) friction
  3. 3.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) doubled (c) gravity (d) unbalanced
  4. 4.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) magnetic force (c) friction (d) gravity
  5. 5.💪 A bag has a mass of 24 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  6. 6.True or false: closing a drawer is a pull. (a) True (b) False
  7. 7.Which of these is caused by magnetic force? (a) a river flows downhill (b) a compass needle turns (c) rain falls to the ground (d) a thrown ball comes down
  8. 8.💪 A box weighs 280 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  9. 9.💪 In which unit do we measure force? (a) litre (L) (b) metre (m) (c) newton (N) (d) second (s)
  10. 10.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  11. 11.💪 A bag has a mass of 13 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  12. 12.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  13. 13.True or false: hitting a cricket ball is a pull. (a) False (b) True
  14. 14.💪 A bag has a mass of 26 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  15. 15.True or false: plucking a mango is a push. (a) False (b) True
  16. 16.Which of these is caused by gravity? (a) a river flows downhill (b) rubbing hands warms them (c) a compass needle turns (d) brakes stop a bicycle
  17. 17.💪 Two children push a box to the right, one with 65 N and the other with 60 N. What is the net (total) force on the box, in newtons?
  18. 18.💪 A box weighs 520 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  19. 19.💪 Two children push a box to the right, one with 35 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  20. 20.True or false: pushing a trolley is a push. (a) False (b) True
  21. 21.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) squeezing a lemon (c) an apple falls down (d) a thrown ball comes down
  22. 22.💪 In a tug of war, one team pulls left with 20 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  23. 23.True or false: plucking a mango is a pull. (a) False (b) True
  24. 24.Which of these is caused by friction? (a) shoes grip the floor (b) a thrown ball comes down (c) a magnet picks up pins (d) pedalling a cycle
  25. 25.💪 Two children push a box to the right, one with 70 N and the other with 65 N. What is the net (total) force on the box, in newtons?
  26. 26.💪 In a tug of war, one team pulls left with 45 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  27. 27.💪 Which force pulls everything towards the Earth? (a) gravity (b) magnetism (c) friction (d) wind
  28. 28.💪 A box weighs 310 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  29. 29.💪 A box weighs 410 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  30. 30.💪 A box weighs 510 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  31. 31.💪 Two children push a box to the right, one with 60 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  32. 32.💪 A box weighs 560 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  33. 33.💪 Which force is at work: lifting a school bag? (a) muscular force (b) gravity (c) friction (d) magnetic force
  34. 34.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  35. 35.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  36. 36.True or false: pulling a cart is a push. (a) False (b) True
  37. 37.💪 Which force is at work: a compass needle turns? (a) magnetic force (b) gravity (c) muscular force (d) friction
  38. 38.True or false: pushing a swing is a pull. (a) False (b) True
  39. 39.True or false: kicking a football is a pull. (a) False (b) True
  40. 40.💪 A force is a … (a) kind of colour (b) unit of time (c) push or a pull (d) type of sound

Answer key

  1. 50
  2. friction
  3. balanced
  4. gravity
  5. 240
  6. False
  7. a compass needle turns
  8. 28
  9. newton (N)
  10. a push
  11. 130
  12. a pull
  13. False
  14. 260
  15. False
  16. a river flows downhill
  17. 125
  18. 52
  19. 85
  20. True
  21. squeezing a lemon
  22. 10
  23. True
  24. shoes grip the floor
  25. 135
  26. 20
  27. gravity
  28. 31
  29. 41
  30. 51
  31. 150
  32. 56
  33. muscular force
  34. 5
  35. a pull
  36. False
  37. magnetic force
  38. False
  39. False
  40. push or a pull

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