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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 734 · 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.💪 Two children push a box to the right, one with 55 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  2. 2.💪 Two children push a box to the right, one with 45 N and the other with 65 N. What is the net (total) force on the box, in newtons?
  3. 3.Which of these is caused by magnetic force? (a) lifting a school bag (b) a compass needle turns (c) pedalling a cycle (d) an apple falls down
  4. 4.💪 A force is a … (a) kind of colour (b) unit of time (c) type of sound (d) push or a pull
  5. 5.Which of these is caused by friction? (a) brakes stop a bicycle (b) an apple falls down (c) a compass needle turns (d) lifting a school bag
  6. 6.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) newton (N) (d) litre (L)
  7. 7.True or false: closing a drawer is a pull. (a) True (b) False
  8. 8.💪 In a tug of war, one team pulls left with 40 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
  9. 9.💪 A cart is pulled to the right with 20 N and to the left with 10 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  10. 10.💪 In a tug of war, one team pulls left with 55 N and the other pulls right with 45 N. What is the size of the net force, in newtons?
  11. 11.Which of these is caused by friction? (a) a compass needle turns (b) squeezing a lemon (c) a rolling ball slows (d) pedalling a cycle
  12. 12.True or false: pressing a doorbell is a pull. (a) False (b) True
  13. 13.💪 A bag has a mass of 43 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  14. 14.💪 Which force pulls everything towards the Earth? (a) gravity (b) wind (c) magnetism (d) friction
  15. 15.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  16. 16.💪 Which force is at work: squeezing a lemon? (a) gravity (b) magnetic force (c) muscular force (d) friction
  17. 17.True or false: plucking a mango is a push. (a) False (b) True
  18. 18.💪 Two children push a box to the right, one with 40 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  19. 19.True or false: closing a drawer is a push. (a) True (b) False
  20. 20.Which of these is caused by magnetic force? (a) rubbing hands warms them (b) brakes stop a bicycle (c) an apple falls down (d) a fridge magnet sticks
  21. 21.💪 A box weighs 410 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  22. 22.💪 A cart is pulled to the right with 100 N and to the left with 115 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  23. 23.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
  24. 24.Which of these is caused by muscular force? (a) rubbing hands warms them (b) lifting a school bag (c) a rolling ball slows (d) rain falls to the ground
  25. 25.Which of these is caused by gravity? (a) an apple falls down (b) squeezing a lemon (c) a compass needle turns (d) a fridge magnet sticks
  26. 26.💪 A box weighs 170 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  27. 27.💪 A cart is pulled to the right with 65 N and to the left with 60 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  28. 28.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  29. 29.💪 A bag has a mass of 22 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  30. 30.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  31. 31.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  32. 32.💪 A cart is pulled to the right with 55 N and to the left with 50 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  33. 33.True or false: opening a drawer is a pull. (a) False (b) True
  34. 34.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  35. 35.💪 Which force is at work: a rolling ball slows? (a) friction (b) magnetic force (c) gravity (d) muscular force
  36. 36.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) magnetic force (c) friction (d) gravity
  37. 37.True or false: hitting a cricket ball is a push. (a) True (b) False
  38. 38.💪 A cart is pulled to the right with 75 N and to the left with 60 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  39. 39.True or false: pressing a doorbell is a push. (a) False (b) True
  40. 40.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 30 N. What is the size of the net force, in newtons?

Answer key

  1. 95
  2. 110
  3. a compass needle turns
  4. push or a pull
  5. brakes stop a bicycle
  6. newton (N)
  7. False
  8. 10
  9. to the right
  10. 10
  11. a rolling ball slows
  12. False
  13. 430
  14. gravity
  15. a pull
  16. muscular force
  17. False
  18. 55
  19. True
  20. a fridge magnet sticks
  21. 41
  22. to the left
  23. 75
  24. lifting a school bag
  25. an apple falls down
  26. 17
  27. to the right
  28. a pull
  29. 220
  30. a push
  31. a push
  32. to the right
  33. True
  34. a push
  35. friction
  36. magnetic force
  37. True
  38. to the right
  39. True
  40. 65

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