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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 773 · 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 100 N and the other pulls right with 65 N. What is the size of the net force, in newtons?
  2. 2.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) gravity (c) muscular force (d) friction
  3. 3.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  4. 4.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 35 N. What is the size of the net force, in newtons?
  5. 5.💪 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 right (b) to the left (c) no net force
  6. 6.💪 A box weighs 130 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  7. 7.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  8. 8.💪 Which force is at work: pedalling a cycle? (a) magnetic force (b) friction (c) muscular force (d) gravity
  9. 9.💪 Which force is at work: an apple falls down? (a) muscular force (b) magnetic force (c) friction (d) gravity
  10. 10.True or false: pushing a swing is a pull. (a) False (b) True
  11. 11.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) muscular force (c) friction (d) magnetic force
  12. 12.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  13. 13.Which of these is caused by muscular force? (a) lifting a school bag (b) a river flows downhill (c) a thrown ball comes down (d) a rolling ball slows
  14. 14.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  15. 15.💪 Two children push a box to the right, one with 30 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  16. 16.💪 A box weighs 110 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  17. 17.💪 Which force pulls everything towards the Earth? (a) gravity (b) magnetism (c) wind (d) friction
  18. 18.💪 Two children push a box to the right, one with 80 N and the other with 55 N. What is the net (total) force on the box, in newtons?
  19. 19.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) doubled (d) balanced
  20. 20.Which of these is caused by magnetic force? (a) a rolling ball slows (b) a compass needle turns (c) rubbing hands warms them (d) an apple falls down
  21. 21.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  22. 22.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  23. 23.True or false: kicking a football is a pull. (a) False (b) True
  24. 24.💪 A cart is pulled to the right with 40 N and to the left with 50 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  25. 25.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) gravity (c) magnetic force (d) friction
  26. 26.True or false: pulling up your socks is a pull. (a) False (b) True
  27. 27.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) muscular force (c) gravity (d) friction
  28. 28.True or false: a tug of war is a pull. (a) False (b) True
  29. 29.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) brakes stop a bicycle (c) a river flows downhill (d) a rolling ball slows
  30. 30.💪 A cart is pulled to the right with 45 N and to the left with 40 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  31. 31.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  32. 32.💪 A box weighs 580 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  33. 33.True or false: drawing up a well bucket is a pull. (a) False (b) True
  34. 34.💪 In a tug of war, one team pulls right with 60 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  35. 35.💪 Two children push a box to the right, one with 5 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  36. 36.💪 A bag has a mass of 21 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  37. 37.💪 A box weighs 570 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  38. 38.💪 A bag has a mass of 40 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  39. 39.💪 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?
  40. 40.True or false: pushing a trolley is a pull. (a) False (b) True

Answer key

  1. 35
  2. gravity
  3. a pull
  4. 10
  5. no net force
  6. 13
  7. a pull
  8. muscular force
  9. gravity
  10. False
  11. friction
  12. 90
  13. lifting a school bag
  14. a push
  15. 50
  16. 11
  17. gravity
  18. 135
  19. balanced
  20. a compass needle turns
  21. a pull
  22. a push
  23. False
  24. to the left
  25. friction
  26. True
  27. muscular force
  28. True
  29. a fridge magnet sticks
  30. to the right
  31. a push
  32. 58
  33. True
  34. 45
  35. 100
  36. 210
  37. 57
  38. 400
  39. 5
  40. False

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