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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 9 · 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.💪 A force is a … (a) kind of colour (b) unit of time (c) push or a pull (d) type of sound
  2. 2.💪 A box weighs 470 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  3. 3.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  4. 4.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) gravity (c) magnetic force (d) friction
  5. 5.True or false: hitting a cricket ball is a push. (a) True (b) False
  6. 6.True or false: kicking a football is a pull. (a) True (b) False
  7. 7.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) friction (c) muscular force (d) gravity
  8. 8.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  9. 9.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  10. 10.True or false: opening a drawer is a pull. (a) False (b) True
  11. 11.True or false: pulling a cart is a pull. (a) False (b) True
  12. 12.💪 A bag has a mass of 52 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 25 N and to the left with 20 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  14. 14.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) a magnet picks up pins (c) an apple falls down (d) pedalling a cycle
  15. 15.💪 A cart is pulled to the right with 30 N and to the left with 40 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  16. 16.💪 A cart is pulled to the right with 45 N and to the left with 45 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  17. 17.Which of these is caused by gravity? (a) rain falls to the ground (b) shoes grip the floor (c) a rolling ball slows (d) pedalling a cycle
  18. 18.💪 In a tug of war, one team pulls left with 25 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  19. 19.True or false: closing a drawer is a pull. (a) False (b) True
  20. 20.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  21. 21.💪 Two children push a box to the right, one with 70 N and the other with 55 N. What is the net (total) force on the box, in newtons?
  22. 22.Which of these is caused by muscular force? (a) a magnet picks up pins (b) a rolling ball slows (c) lifting a school bag (d) brakes stop a bicycle
  23. 23.True or false: closing a drawer is a push. (a) True (b) False
  24. 24.💪 A cart is pulled to the right with 30 N and to the left with 35 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  25. 25.💪 In which unit do we measure force? (a) metre (m) (b) newton (N) (c) litre (L) (d) second (s)
  26. 26.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  27. 27.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) balanced (c) doubled (d) unbalanced
  28. 28.True or false: kicking a football is a push. (a) False (b) True
  29. 29.Which of these is caused by friction? (a) a magnet picks up pins (b) an apple falls down (c) pedalling a cycle (d) shoes grip the floor
  30. 30.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 65 N. What is the size of the net force, in newtons?
  31. 31.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) gravity (c) friction (d) magnetic force
  32. 32.💪 A cart is pulled to the right with 75 N and to the left with 65 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  33. 33.True or false: hitting a cricket ball is a pull. (a) True (b) False
  34. 34.True or false: pressing a doorbell is a push. (a) False (b) True
  35. 35.Which of these is caused by friction? (a) a rolling ball slows (b) rain falls to the ground (c) an apple falls down (d) a compass needle turns
  36. 36.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  37. 37.💪 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 left (c) to the right
  38. 38.Which of these is caused by magnetic force? (a) an apple falls down (b) shoes grip the floor (c) a magnet picks up pins (d) squeezing a lemon
  39. 39.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) magnetic force (c) friction (d) muscular force
  40. 40.💪 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) no net force (b) to the left (c) to the right

Answer key

  1. push or a pull
  2. 47
  3. a push
  4. friction
  5. True
  6. False
  7. friction
  8. a pull
  9. a pull
  10. True
  11. True
  12. 520
  13. to the right
  14. pedalling a cycle
  15. to the left
  16. no net force
  17. rain falls to the ground
  18. 15
  19. False
  20. a pull
  21. 125
  22. lifting a school bag
  23. True
  24. to the left
  25. newton (N)
  26. a push
  27. balanced
  28. True
  29. shoes grip the floor
  30. 35
  31. gravity
  32. to the right
  33. False
  34. True
  35. a rolling ball slows
  36. a push
  37. no net force
  38. a magnet picks up pins
  39. friction
  40. to the left

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