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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 206 · 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: pressing a doorbell is a pull. (a) False (b) True
  2. 2.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) muscular force (c) gravity (d) friction
  3. 3.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  4. 4.💪 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?
  5. 5.💪 A bag has a mass of 37 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  6. 6.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  7. 7.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  8. 8.💪 A bag has a mass of 29 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  9. 9.💪 Which force pulls everything towards the Earth? (a) friction (b) gravity (c) magnetism (d) wind
  10. 10.True or false: opening a drawer is a push. (a) True (b) False
  11. 11.Which of these is caused by gravity? (a) lifting a school bag (b) pedalling a cycle (c) an apple falls down (d) a rolling ball slows
  12. 12.True or false: closing a drawer is a push. (a) True (b) False
  13. 13.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) magnetic force (c) gravity (d) friction
  14. 14.Which of these is caused by friction? (a) a rolling ball slows (b) pedalling a cycle (c) lifting a school bag (d) a fridge magnet sticks
  15. 15.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) friction (c) gravity (d) magnetic force
  16. 16.True or false: a tug of war is a pull. (a) True (b) False
  17. 17.Which of these is caused by gravity? (a) rubbing hands warms them (b) brakes stop a bicycle (c) rain falls to the ground (d) pedalling a cycle
  18. 18.True or false: pushing a trolley is a push. (a) False (b) True
  19. 19.True or false: hitting a cricket ball is a pull. (a) False (b) True
  20. 20.💪 Two children push a box to the right, one with 85 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  21. 21.True or false: a tug of war is a push. (a) False (b) True
  22. 22.True or false: drawing up a well bucket is a push. (a) False (b) True
  23. 23.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  24. 24.💪 A bag has a mass of 6 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  25. 25.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  26. 26.💪 A box weighs 450 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  27. 27.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  28. 28.💪 Two children push a box to the right, one with 25 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  29. 29.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) gravity (c) friction (d) magnetic force
  30. 30.💪 A cart is pulled to the right with 65 N and to the left with 65 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  31. 31.💪 A force is a … (a) unit of time (b) push or a pull (c) kind of colour (d) type of sound
  32. 32.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) balanced (c) doubled (d) unbalanced
  33. 33.💪 A cart is pulled to the right with 70 N and to the left with 75 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  34. 34.True or false: hitting a cricket ball is a push. (a) True (b) False
  35. 35.💪 Two children push a box to the right, one with 45 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  36. 36.💪 A cart is pulled to the right with 40 N and to the left with 30 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  37. 37.💪 Two children push a box to the right, one with 20 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  38. 38.Which of these is caused by magnetic force? (a) a rolling ball slows (b) rubbing hands warms them (c) a thrown ball comes down (d) a fridge magnet sticks
  39. 39.💪 Two children push a box to the right, one with 40 N and the other with 70 N. What is the net (total) force on the box, in newtons?
  40. 40.💪 Which force is at work: rain falls to the ground? (a) gravity (b) magnetic force (c) friction (d) muscular force

Answer key

  1. False
  2. gravity
  3. a pull
  4. 70
  5. 370
  6. 35
  7. a pull
  8. 290
  9. gravity
  10. False
  11. an apple falls down
  12. True
  13. friction
  14. a rolling ball slows
  15. friction
  16. True
  17. rain falls to the ground
  18. True
  19. False
  20. 120
  21. False
  22. False
  23. a push
  24. 60
  25. 75
  26. 45
  27. a push
  28. 115
  29. magnetic force
  30. no net force
  31. push or a pull
  32. balanced
  33. to the left
  34. True
  35. 85
  36. to the right
  37. 110
  38. a fridge magnet sticks
  39. 110
  40. gravity

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