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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 886 · 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 opening a drawer a push or a pull? (a) a push (b) a pull
  2. 2.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  3. 3.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 55 N. What is the size of the net force, in newtons?
  4. 4.💪 A box weighs 270 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  5. 5.💪 A box weighs 220 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  6. 6.💪 A cart is pulled to the right with 25 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
  7. 7.True or false: closing a drawer is a pull. (a) False (b) True
  8. 8.💪 In a tug of war, one team pulls left with 85 N and the other pulls right with 55 N. What is the size of the net force, in newtons?
  9. 9.💪 A box weighs 180 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  10. 10.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  11. 11.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  12. 12.💪 A bag has a mass of 45 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  13. 13.💪 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) no net force (b) to the right (c) to the left
  14. 14.True or false: pulling up your socks is a pull. (a) False (b) True
  15. 15.💪 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) to the left (b) to the right (c) no net force
  16. 16.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  17. 17.Which of these is caused by muscular force? (a) a thrown ball comes down (b) a magnet picks up pins (c) lifting a school bag (d) an apple falls down
  18. 18.True or false: a tug of war is a push. (a) True (b) False
  19. 19.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) gravity (c) muscular force (d) friction
  20. 20.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 35 N. What is the size of the net force, in newtons?
  21. 21.💪 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?
  22. 22.💪 Two children push a box to the right, one with 35 N and the other with 55 N. What is the net (total) force on the box, in newtons?
  23. 23.True or false: kicking a football is a push. (a) False (b) True
  24. 24.True or false: drawing up a well bucket is a push. (a) True (b) False
  25. 25.💪 A bag has a mass of 8 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  26. 26.True or false: pushing a swing is a push. (a) False (b) True
  27. 27.Which of these is caused by muscular force? (a) a magnet picks up pins (b) squeezing a lemon (c) rain falls to the ground (d) a river flows downhill
  28. 28.💪 A force is a … (a) type of sound (b) kind of colour (c) unit of time (d) push or a pull
  29. 29.💪 A bag has a mass of 42 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  30. 30.💪 A box weighs 310 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  31. 31.💪 Which force is at work: a thrown ball comes down? (a) friction (b) muscular force (c) magnetic force (d) gravity
  32. 32.💪 Two children push a box to the right, one with 10 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  33. 33.True or false: pulling a cart is a push. (a) False (b) True
  34. 34.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) muscular force (c) gravity (d) friction
  35. 35.True or false: pushing a trolley is a push. (a) False (b) True
  36. 36.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) unbalanced (c) gravity (d) doubled
  37. 37.True or false: pushing a swing is a pull. (a) True (b) False
  38. 38.True or false: pressing a doorbell is a push. (a) True (b) False
  39. 39.💪 Two children push a box to the right, one with 15 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  40. 40.Which of these is caused by magnetic force? (a) pedalling a cycle (b) a compass needle turns (c) squeezing a lemon (d) shoes grip the floor

Answer key

  1. a pull
  2. a pull
  3. 15
  4. 27
  5. 22
  6. to the left
  7. False
  8. 30
  9. 18
  10. a pull
  11. a push
  12. 450
  13. no net force
  14. True
  15. to the right
  16. a pull
  17. lifting a school bag
  18. False
  19. gravity
  20. 40
  21. 120
  22. 90
  23. True
  24. False
  25. 80
  26. True
  27. squeezing a lemon
  28. push or a pull
  29. 420
  30. 31
  31. gravity
  32. 100
  33. False
  34. muscular force
  35. True
  36. balanced
  37. False
  38. True
  39. 35
  40. a compass needle turns

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