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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 277 · 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 bag has a mass of 14 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  2. 2.💪 A box weighs 130 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  3. 3.Which of these is caused by friction? (a) rain falls to the ground (b) a rolling ball slows (c) a thrown ball comes down (d) a river flows downhill
  4. 4.💪 A box weighs 30 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  5. 5.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  6. 6.💪 In a tug of war, one team pulls right with 40 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
  7. 7.💪 Which force is at work: pedalling a cycle? (a) friction (b) magnetic force (c) muscular force (d) gravity
  8. 8.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  9. 9.💪 Two children push a box to the right, one with 60 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  10. 10.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  11. 11.True or false: pushing a trolley is a push. (a) False (b) True
  12. 12.💪 A bag has a mass of 4 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  13. 13.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  14. 14.Which of these is caused by friction? (a) brakes stop a bicycle (b) a compass needle turns (c) squeezing a lemon (d) an apple falls down
  15. 15.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) gravity (c) friction (d) muscular force
  16. 16.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  17. 17.💪 Two children push a box to the right, one with 35 N and the other with 75 N. What is the net (total) force on the box, in newtons?
  18. 18.Which of these is caused by gravity? (a) pedalling a cycle (b) shoes grip the floor (c) rain falls to the ground (d) a magnet picks up pins
  19. 19.True or false: pushing a swing is a push. (a) False (b) True
  20. 20.💪 A box weighs 510 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  21. 21.💪 A box weighs 560 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  22. 22.Which of these is caused by gravity? (a) an apple falls down (b) shoes grip the floor (c) squeezing a lemon (d) a magnet picks up pins
  23. 23.💪 A cart is pulled to the right with 55 N and to the left with 55 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  24. 24.💪 A box weighs 440 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  25. 25.True or false: opening a drawer is a push. (a) False (b) True
  26. 26.💪 Two children push a box to the right, one with 10 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  27. 27.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  28. 28.💪 A bag has a mass of 6 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  29. 29.💪 A cart is pulled to the right with 40 N and to the left with 50 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  30. 30.Which of these is caused by gravity? (a) a rolling ball slows (b) a magnet picks up pins (c) pedalling a cycle (d) a thrown ball comes down
  31. 31.💪 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) no net force (b) to the left (c) to the right
  32. 32.💪 A cart is pulled to the right with 80 N and to the left with 80 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  33. 33.Which of these is caused by muscular force? (a) shoes grip the floor (b) a magnet picks up pins (c) lifting a school bag (d) a rolling ball slows
  34. 34.💪 In which unit do we measure force? (a) newton (N) (b) second (s) (c) litre (L) (d) metre (m)
  35. 35.💪 Two children push a box to the right, one with 75 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  36. 36.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  37. 37.💪 A bag has a mass of 45 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  38. 38.💪 A bag has a mass of 15 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  39. 39.True or false: pulling up your socks is a push. (a) False (b) True
  40. 40.True or false: pressing a doorbell is a push. (a) False (b) True

Answer key

  1. 140
  2. 13
  3. a rolling ball slows
  4. 3
  5. a push
  6. 15
  7. muscular force
  8. a pull
  9. 70
  10. a pull
  11. True
  12. 40
  13. a push
  14. brakes stop a bicycle
  15. friction
  16. a pull
  17. 110
  18. rain falls to the ground
  19. True
  20. 51
  21. 56
  22. an apple falls down
  23. no net force
  24. 44
  25. False
  26. 40
  27. 25
  28. 60
  29. to the left
  30. a thrown ball comes down
  31. to the right
  32. no net force
  33. lifting a school bag
  34. newton (N)
  35. 155
  36. a pull
  37. 450
  38. 150
  39. False
  40. True

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