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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 112 · 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 left with 50 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
  2. 2.💪 Two children push a box to the right, one with 55 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  3. 3.Which of these is caused by gravity? (a) a compass needle turns (b) shoes grip the floor (c) an apple falls down (d) rubbing hands warms them
  4. 4.💪 Two children push a box to the right, one with 100 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  5. 5.💪 Two children push a box to the right, one with 55 N and the other with 60 N. What is the net (total) force on the box, in newtons?
  6. 6.💪 A cart is pulled to the right with 45 N and to the left with 60 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  7. 7.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  8. 8.💪 A bag has a mass of 41 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  9. 9.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) gravity (d) unbalanced
  10. 10.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  11. 11.💪 A bag has a mass of 11 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  12. 12.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) friction (d) magnetism
  13. 13.💪 Two children push a box to the right, one with 65 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  14. 14.💪 A bag has a mass of 60 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  15. 15.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) muscular force (c) friction (d) gravity
  16. 16.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  17. 17.💪 Two children push a box to the right, one with 45 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  18. 18.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  19. 19.💪 A box weighs 390 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  20. 20.True or false: pushing a swing is a push. (a) True (b) False
  21. 21.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  22. 22.True or false: pressing a doorbell is a pull. (a) True (b) False
  23. 23.💪 Two children push a box to the right, one with 15 N and the other with 60 N. What is the net (total) force on the box, in newtons?
  24. 24.💪 Which force is at work: a magnet picks up pins? (a) gravity (b) friction (c) muscular force (d) magnetic force
  25. 25.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  26. 26.True or false: plucking a mango is a pull. (a) False (b) True
  27. 27.💪 Which force is at work: an apple falls down? (a) muscular force (b) magnetic force (c) friction (d) gravity
  28. 28.💪 A cart is pulled to the right with 75 N and to the left with 65 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  29. 29.💪 A cart is pulled to the right with 90 N and to the left with 75 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  30. 30.💪 A cart is pulled to the right with 30 N and to the left with 30 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  31. 31.💪 A cart is pulled to the right with 65 N and to the left with 75 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  32. 32.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  33. 33.True or false: pulling a cart is a push. (a) True (b) False
  34. 34.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 55 N. What is the size of the net force, in newtons?
  35. 35.Which of these is caused by friction? (a) pedalling a cycle (b) a fridge magnet sticks (c) rain falls to the ground (d) shoes grip the floor
  36. 36.💪 A box weighs 240 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  37. 37.True or false: pushing a trolley is a pull. (a) True (b) False
  38. 38.💪 Two children push a box to the right, one with 90 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  39. 39.💪 A bag has a mass of 51 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  40. 40.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push

Answer key

  1. 10
  2. 85
  3. an apple falls down
  4. 180
  5. 115
  6. to the left
  7. a pull
  8. 410
  9. balanced
  10. a push
  11. 110
  12. gravity
  13. 100
  14. 600
  15. friction
  16. a pull
  17. 140
  18. a push
  19. 39
  20. True
  21. a push
  22. False
  23. 75
  24. magnetic force
  25. a pull
  26. True
  27. gravity
  28. to the right
  29. to the right
  30. no net force
  31. to the left
  32. a pull
  33. False
  34. 25
  35. shoes grip the floor
  36. 24
  37. False
  38. 95
  39. 510
  40. a pull

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