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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 849 · 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 pulls everything towards the Earth? (a) friction (b) gravity (c) wind (d) magnetism
  2. 2.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) gravity (d) unbalanced
  3. 3.💪 A bag has a mass of 14 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  4. 4.💪 A cart is pulled to the right with 25 N and to the left with 10 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  5. 5.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 35 N. What is the size of the net force, in newtons?
  6. 6.💪 A force is a … (a) type of sound (b) push or a pull (c) unit of time (d) kind of colour
  7. 7.💪 A box weighs 420 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  8. 8.True or false: pressing a doorbell is a pull. (a) True (b) False
  9. 9.💪 In which unit do we measure force? (a) newton (N) (b) metre (m) (c) second (s) (d) litre (L)
  10. 10.💪 In a tug of war, one team pulls left with 85 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  11. 11.💪 Two children push a box to the right, one with 80 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  12. 12.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) magnetic force (c) gravity (d) friction
  13. 13.💪 A box weighs 270 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  14. 14.💪 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 left (b) to the right (c) no net force
  15. 15.💪 A bag has a mass of 37 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  16. 16.💪 A bag has a mass of 54 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  17. 17.Which of these is caused by gravity? (a) a rolling ball slows (b) rain falls to the ground (c) a compass needle turns (d) squeezing a lemon
  18. 18.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  19. 19.True or false: plucking a mango is a push. (a) False (b) True
  20. 20.💪 Two children push a box to the right, one with 90 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  21. 21.💪 Two children push a box to the right, one with 55 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  22. 22.Which of these is caused by friction? (a) pedalling a cycle (b) a river flows downhill (c) squeezing a lemon (d) brakes stop a bicycle
  23. 23.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  24. 24.💪 A cart is pulled to the right with 55 N and to the left with 70 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  25. 25.💪 A bag has a mass of 10 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  26. 26.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  27. 27.Which of these is caused by friction? (a) a thrown ball comes down (b) a magnet picks up pins (c) lifting a school bag (d) shoes grip the floor
  28. 28.Which of these is caused by magnetic force? (a) shoes grip the floor (b) rain falls to the ground (c) a river flows downhill (d) a compass needle turns
  29. 29.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) magnetic force (c) friction (d) gravity
  30. 30.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  31. 31.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  32. 32.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  33. 33.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  34. 34.Which of these is caused by muscular force? (a) a thrown ball comes down (b) lifting a school bag (c) brakes stop a bicycle (d) a compass needle turns
  35. 35.💪 Two children push a box to the right, one with 25 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  36. 36.Which of these is caused by magnetic force? (a) rubbing hands warms them (b) a fridge magnet sticks (c) brakes stop a bicycle (d) an apple falls down
  37. 37.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) friction (c) muscular force (d) gravity
  38. 38.💪 A cart is pulled to the right with 60 N and to the left with 60 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  39. 39.💪 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) no net force (b) to the left (c) to the right
  40. 40.Which of these is caused by gravity? (a) a compass needle turns (b) shoes grip the floor (c) pedalling a cycle (d) an apple falls down

Answer key

  1. gravity
  2. balanced
  3. 140
  4. to the right
  5. 15
  6. push or a pull
  7. 42
  8. False
  9. newton (N)
  10. 65
  11. 85
  12. friction
  13. 27
  14. to the right
  15. 370
  16. 540
  17. rain falls to the ground
  18. a pull
  19. False
  20. 115
  21. 75
  22. brakes stop a bicycle
  23. 30
  24. to the left
  25. 100
  26. a push
  27. shoes grip the floor
  28. a compass needle turns
  29. friction
  30. a push
  31. a push
  32. a pull
  33. a push
  34. lifting a school bag
  35. 60
  36. a fridge magnet sticks
  37. muscular force
  38. no net force
  39. to the left
  40. an apple falls down

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