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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 852 · 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.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  2. 2.💪 Which force is at work: rain falls to the ground? (a) gravity (b) muscular force (c) friction (d) magnetic force
  3. 3.💪 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?
  4. 4.Which of these is caused by muscular force? (a) squeezing a lemon (b) a thrown ball comes down (c) a compass needle turns (d) brakes stop a bicycle
  5. 5.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  6. 6.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) doubled (c) unbalanced (d) balanced
  7. 7.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  8. 8.💪 A cart is pulled to the right with 95 N and to the left with 90 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  9. 9.💪 A cart is pulled to the right with 95 N and to the left with 110 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  10. 10.Which of these is caused by friction? (a) shoes grip the floor (b) a thrown ball comes down (c) pedalling a cycle (d) a fridge magnet sticks
  11. 11.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  12. 12.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
  13. 13.💪 A bag has a mass of 37 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  14. 14.💪 A bag has a mass of 36 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  15. 15.💪 A bag has a mass of 23 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  16. 16.💪 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 left (c) to the right
  17. 17.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  18. 18.True or false: hitting a cricket ball is a pull. (a) True (b) False
  19. 19.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) litre (L) (d) newton (N)
  20. 20.True or false: drawing up a well bucket is a pull. (a) True (b) False
  21. 21.💪 Two children push a box to the right, one with 75 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  22. 22.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) muscular force (c) gravity (d) magnetic force
  23. 23.Which of these is caused by magnetic force? (a) a compass needle turns (b) lifting a school bag (c) a rolling ball slows (d) shoes grip the floor
  24. 24.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  25. 25.True or false: pulling a cart is a push. (a) True (b) False
  26. 26.Which of these is caused by muscular force? (a) an apple falls down (b) lifting a school bag (c) a thrown ball comes down (d) rubbing hands warms them
  27. 27.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  28. 28.True or false: pressing a doorbell is a push. (a) False (b) True
  29. 29.Which of these is caused by gravity? (a) a magnet picks up pins (b) a thrown ball comes down (c) lifting a school bag (d) squeezing a lemon
  30. 30.💪 In a tug of war, one team pulls left with 45 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
  31. 31.💪 A box weighs 120 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  32. 32.💪 A cart is pulled to the right with 90 N and to the left with 105 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  33. 33.💪 Which force is at work: a river flows downhill? (a) gravity (b) muscular force (c) magnetic force (d) friction
  34. 34.💪 A cart is pulled to the right with 100 N and to the left with 100 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  35. 35.True or false: drawing up a well bucket is a push. (a) False (b) True
  36. 36.💪 Which force is at work: an apple falls down? (a) magnetic force (b) muscular force (c) friction (d) gravity
  37. 37.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  38. 38.💪 A bag has a mass of 48 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 left with 50 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
  40. 40.💪 Two children push a box to the right, one with 45 N and the other with 75 N. What is the net (total) force on the box, in newtons?

Answer key

  1. a pull
  2. gravity
  3. 10
  4. squeezing a lemon
  5. a pull
  6. balanced
  7. a push
  8. to the right
  9. to the left
  10. shoes grip the floor
  11. a pull
  12. 10
  13. 370
  14. 360
  15. 230
  16. to the left
  17. a pull
  18. False
  19. newton (N)
  20. True
  21. 125
  22. magnetic force
  23. a compass needle turns
  24. a push
  25. False
  26. lifting a school bag
  27. a pull
  28. True
  29. a thrown ball comes down
  30. 5
  31. 12
  32. to the left
  33. gravity
  34. no net force
  35. False
  36. gravity
  37. 5
  38. 480
  39. 10
  40. 120

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