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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 583 · 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 10 N and the other with 75 N. What is the net (total) force on the box, in newtons?
  3. 3.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) friction (c) muscular force (d) gravity
  4. 4.💪 Which force is at work: an apple falls down? (a) muscular force (b) friction (c) gravity (d) magnetic force
  5. 5.💪 Which force is at work: a thrown ball comes down? (a) friction (b) magnetic force (c) muscular force (d) gravity
  6. 6.💪 In a tug of war, one team pulls left with 25 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  7. 7.💪 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?
  8. 8.True or false: opening a drawer is a push. (a) True (b) False
  9. 9.💪 A cart is pulled to the right with 35 N and to the left with 45 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  10. 10.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  11. 11.💪 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?
  12. 12.💪 Which force is at work: a magnet picks up pins? (a) gravity (b) magnetic force (c) muscular force (d) friction
  13. 13.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  14. 14.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  15. 15.💪 A box weighs 420 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  16. 16.💪 A force is a … (a) push or a pull (b) unit of time (c) type of sound (d) kind of colour
  17. 17.💪 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
  18. 18.💪 Two children push a box to the right, one with 100 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  19. 19.True or false: a tug of war is a push. (a) False (b) True
  20. 20.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  21. 21.💪 A bag has a mass of 52 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  22. 22.💪 Two children push a box to the right, one with 70 N and the other with 100 N. What is the net (total) force on the box, in newtons?
  23. 23.💪 Two children push a box to the right, one with 100 N and the other with 55 N. What is the net (total) force on the box, in newtons?
  24. 24.True or false: pressing a doorbell is a pull. (a) True (b) False
  25. 25.💪 A box weighs 580 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  26. 26.💪 A box weighs 60 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  27. 27.Which of these is caused by gravity? (a) pedalling a cycle (b) an apple falls down (c) a compass needle turns (d) a fridge magnet sticks
  28. 28.💪 A cart is pulled to the right with 20 N and to the left with 15 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  29. 29.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  30. 30.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) gravity (c) unbalanced (d) balanced
  31. 31.💪 Which force is at work: squeezing a lemon? (a) magnetic force (b) friction (c) muscular force (d) gravity
  32. 32.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  33. 33.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  34. 34.💪 Which force is at work: a rolling ball slows? (a) friction (b) muscular force (c) gravity (d) magnetic force
  35. 35.💪 In which unit do we measure force? (a) newton (N) (b) litre (L) (c) metre (m) (d) second (s)
  36. 36.True or false: pulling up your socks is a pull. (a) True (b) False
  37. 37.💪 Which can a force NOT do? (a) change its colour (b) change its shape (c) stop it moving (d) start it moving
  38. 38.💪 Two children push a box to the right, one with 25 N and the other with 70 N. What is the net (total) force on the box, in newtons?
  39. 39.True or false: drawing up a well bucket is a pull. (a) False (b) True
  40. 40.💪 A box weighs 10 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?

Answer key

  1. 95
  2. 85
  3. gravity
  4. gravity
  5. gravity
  6. 10
  7. 15
  8. False
  9. to the left
  10. 25
  11. 60
  12. magnetic force
  13. a pull
  14. 60
  15. 42
  16. push or a pull
  17. to the right
  18. 125
  19. False
  20. a push
  21. 520
  22. 170
  23. 155
  24. False
  25. 58
  26. 6
  27. an apple falls down
  28. to the right
  29. 10
  30. balanced
  31. muscular force
  32. 15
  33. a push
  34. friction
  35. newton (N)
  36. True
  37. change its colour
  38. 95
  39. True
  40. 1

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