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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 751 · 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 box weighs 470 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  2. 2.True or false: a tug of war is a pull. (a) False (b) True
  3. 3.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) gravity (c) friction (d) magnetic force
  4. 4.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) doubled (d) balanced
  5. 5.💪 Two children push a box to the right, one with 35 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  6. 6.Which of these is caused by gravity? (a) a thrown ball comes down (b) lifting a school bag (c) a magnet picks up pins (d) a rolling ball slows
  7. 7.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  8. 8.True or false: plucking a mango is a push. (a) False (b) True
  9. 9.💪 Two children push a box to the right, one with 5 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  10. 10.💪 In which unit do we measure force? (a) litre (L) (b) newton (N) (c) metre (m) (d) second (s)
  11. 11.True or false: closing a drawer is a pull. (a) False (b) True
  12. 12.💪 A box weighs 250 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  13. 13.True or false: pressing a doorbell is a pull. (a) True (b) False
  14. 14.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  15. 15.💪 A bag has a mass of 58 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  16. 16.💪 A box weighs 570 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  17. 17.💪 A bag has a mass of 48 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  18. 18.💪 In a tug of war, one team pulls left with 45 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
  19. 19.💪 A force is a … (a) type of sound (b) unit of time (c) kind of colour (d) push or a pull
  20. 20.Which of these is caused by muscular force? (a) squeezing a lemon (b) an apple falls down (c) a rolling ball slows (d) a river flows downhill
  21. 21.Which of these is caused by magnetic force? (a) squeezing a lemon (b) pedalling a cycle (c) a magnet picks up pins (d) rain falls to the ground
  22. 22.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  23. 23.True or false: plucking a mango is a pull. (a) True (b) False
  24. 24.True or false: kicking a football is a push. (a) True (b) False
  25. 25.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  26. 26.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  27. 27.💪 In a tug of war, one team pulls left with 100 N and the other pulls right with 35 N. What is the size of the net force, in newtons?
  28. 28.Which of these is caused by friction? (a) a magnet picks up pins (b) lifting a school bag (c) an apple falls down (d) brakes stop a bicycle
  29. 29.💪 Two children push a box to the right, one with 45 N and the other with 100 N. What is the net (total) force on the box, in newtons?
  30. 30.💪 Which force is at work: squeezing a lemon? (a) gravity (b) magnetic force (c) muscular force (d) friction
  31. 31.True or false: pulling a cart is a pull. (a) False (b) True
  32. 32.💪 Two children push a box to the right, one with 95 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  33. 33.True or false: drawing up a well bucket is a push. (a) False (b) True
  34. 34.💪 Which force is at work: a magnet picks up pins? (a) friction (b) magnetic force (c) gravity (d) muscular force
  35. 35.💪 A box weighs 410 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  36. 36.Which of these is caused by gravity? (a) a compass needle turns (b) pedalling a cycle (c) rain falls to the ground (d) squeezing a lemon
  37. 37.Which of these is caused by friction? (a) squeezing a lemon (b) a compass needle turns (c) a magnet picks up pins (d) a rolling ball slows
  38. 38.💪 Two children push a box to the right, one with 10 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  39. 39.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  40. 40.💪 A cart is pulled to the right with 95 N and to the left with 80 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right

Answer key

  1. 47
  2. True
  3. friction
  4. balanced
  5. 85
  6. a thrown ball comes down
  7. a pull
  8. False
  9. 35
  10. newton (N)
  11. False
  12. 25
  13. False
  14. a push
  15. 580
  16. 57
  17. 480
  18. 15
  19. push or a pull
  20. squeezing a lemon
  21. a magnet picks up pins
  22. a push
  23. True
  24. True
  25. a pull
  26. 20
  27. 65
  28. brakes stop a bicycle
  29. 145
  30. muscular force
  31. True
  32. 100
  33. False
  34. magnetic force
  35. 41
  36. rain falls to the ground
  37. a rolling ball slows
  38. 60
  39. a pull
  40. to the right

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