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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 624 · 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) push or a pull (c) type of sound (d) kind of colour
  2. 2.💪 Two children push a box to the right, one with 90 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  3. 3.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  4. 4.💪 In a tug of war, one team pulls right with 85 N and the other pulls left with 55 N. What is the size of the net force, in newtons?
  5. 5.💪 Which force is at work: a compass needle turns? (a) friction (b) magnetic force (c) gravity (d) muscular force
  6. 6.💪 A bag has a mass of 53 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  7. 7.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  8. 8.Which of these is caused by gravity? (a) squeezing a lemon (b) shoes grip the floor (c) an apple falls down (d) a fridge magnet sticks
  9. 9.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  10. 10.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) gravity (c) magnetic force (d) friction
  11. 11.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) gravity (c) unbalanced (d) balanced
  12. 12.True or false: drawing up a well bucket is a push. (a) False (b) True
  13. 13.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  14. 14.💪 A box weighs 110 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  15. 15.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) magnetic force (c) friction (d) muscular force
  16. 16.💪 A box weighs 170 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  17. 17.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  18. 18.💪 Which force is at work: a river flows downhill? (a) gravity (b) friction (c) muscular force (d) magnetic force
  19. 19.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  20. 20.Which of these is caused by friction? (a) lifting a school bag (b) rubbing hands warms them (c) a magnet picks up pins (d) a fridge magnet sticks
  21. 21.💪 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?
  22. 22.True or false: closing a drawer is a pull. (a) True (b) False
  23. 23.💪 A bag has a mass of 44 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  24. 24.Which of these is caused by muscular force? (a) a magnet picks up pins (b) squeezing a lemon (c) an apple falls down (d) shoes grip the floor
  25. 25.💪 A bag has a mass of 31 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  26. 26.💪 In a tug of war, one team pulls left with 90 N and the other pulls right with 65 N. What is the size of the net force, in newtons?
  27. 27.💪 A cart is pulled to the right with 70 N and to the left with 60 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  28. 28.💪 A bag has a mass of 12 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  29. 29.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
  30. 30.💪 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?
  31. 31.💪 In which unit do we measure force? (a) metre (m) (b) newton (N) (c) second (s) (d) litre (L)
  32. 32.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  33. 33.💪 Which force is at work: a rolling ball slows? (a) friction (b) muscular force (c) gravity (d) magnetic force
  34. 34.💪 A box weighs 380 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  35. 35.💪 Which force pulls everything towards the Earth? (a) wind (b) magnetism (c) friction (d) gravity
  36. 36.💪 A cart is pulled to the right with 30 N and to the left with 25 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  37. 37.True or false: pulling a cart is a pull. (a) True (b) False
  38. 38.💪 Which force is at work: lifting a school bag? (a) gravity (b) friction (c) muscular force (d) magnetic force
  39. 39.💪 A cart is pulled to the right with 20 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
  40. 40.💪 A cart is pulled to the right with 40 N and to the left with 25 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right

Answer key

  1. push or a pull
  2. 120
  3. a pull
  4. 30
  5. magnetic force
  6. 530
  7. a pull
  8. an apple falls down
  9. a pull
  10. magnetic force
  11. balanced
  12. False
  13. a push
  14. 11
  15. friction
  16. 17
  17. a pull
  18. gravity
  19. 10
  20. rubbing hands warms them
  21. 5
  22. False
  23. 440
  24. squeezing a lemon
  25. 310
  26. 25
  27. to the right
  28. 120
  29. 50
  30. 155
  31. newton (N)
  32. a push
  33. friction
  34. 38
  35. gravity
  36. to the right
  37. True
  38. muscular force
  39. to the left
  40. to the right

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