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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 674 · 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.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) gravity (c) magnetic force (d) friction
  2. 2.True or false: pushing a trolley is a push. (a) True (b) False
  3. 3.💪 A cart is pulled to the right with 45 N and to the left with 50 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  4. 4.💪 A cart is pulled to the right with 65 N and to the left with 50 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  5. 5.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) gravity (c) friction (d) muscular force
  6. 6.💪 Two children push a box to the right, one with 25 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  7. 7.💪 Two children push a box to the right, one with 50 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  8. 8.Which of these is caused by muscular force? (a) a fridge magnet sticks (b) squeezing a lemon (c) a thrown ball comes down (d) rain falls to the ground
  9. 9.💪 A bag has a mass of 8 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  10. 10.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  11. 11.💪 A cart is pulled to the right with 75 N and to the left with 85 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  12. 12.True or false: opening a drawer is a push. (a) True (b) False
  13. 13.True or false: a tug of war is a pull. (a) False (b) True
  14. 14.True or false: hitting a cricket ball is a push. (a) False (b) True
  15. 15.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  16. 16.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) unbalanced (d) gravity
  17. 17.💪 A cart is pulled to the right with 80 N and to the left with 85 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  18. 18.💪 A cart is pulled to the right with 80 N and to the left with 70 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  19. 19.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  20. 20.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
  21. 21.💪 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 right (b) to the left (c) no net force
  22. 22.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  23. 23.True or false: pushing a trolley is a pull. (a) False (b) True
  24. 24.💪 A box weighs 100 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  25. 25.💪 A force is a … (a) push or a pull (b) unit of time (c) type of sound (d) kind of colour
  26. 26.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) gravity (c) friction (d) magnetic force
  27. 27.💪 Two children push a box to the right, one with 45 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  28. 28.💪 A box weighs 310 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  29. 29.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) magnetic force (c) gravity (d) friction
  30. 30.💪 In a tug of war, one team pulls left with 100 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
  31. 31.True or false: a tug of war is a push. (a) False (b) True
  32. 32.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) magnetism (d) gravity
  33. 33.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  34. 34.💪 Two children push a box to the right, one with 90 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  35. 35.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  36. 36.Which of these is caused by friction? (a) rubbing hands warms them (b) pedalling a cycle (c) a fridge magnet sticks (d) a magnet picks up pins
  37. 37.💪 Two children push a box to the right, one with 55 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  38. 38.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  39. 39.💪 A cart is pulled to the right with 95 N and to the left with 105 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  40. 40.💪 A bag has a mass of 38 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

Answer key

  1. gravity
  2. True
  3. to the left
  4. to the right
  5. gravity
  6. 50
  7. 90
  8. squeezing a lemon
  9. 80
  10. a push
  11. to the left
  12. False
  13. True
  14. True
  15. 10
  16. balanced
  17. to the left
  18. to the right
  19. a push
  20. 10
  21. to the right
  22. a pull
  23. False
  24. 10
  25. push or a pull
  26. muscular force
  27. 70
  28. 31
  29. friction
  30. 60
  31. False
  32. gravity
  33. a push
  34. 110
  35. a pull
  36. rubbing hands warms them
  37. 145
  38. a push
  39. to the left
  40. 380

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