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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 326 · 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 51 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  2. 2.💪 A bag has a mass of 12 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  3. 3.True or false: pushing a swing is a pull. (a) True (b) False
  4. 4.💪 In a tug of war, one team pulls right with 10 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  5. 5.💪 A force is a … (a) unit of time (b) kind of colour (c) type of sound (d) push or a pull
  6. 6.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
  7. 7.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  8. 8.💪 Two children push a box to the right, one with 10 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  9. 9.💪 Two children push a box to the right, one with 90 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  10. 10.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 55 N. What is the size of the net force, in newtons?
  11. 11.💪 In which unit do we measure force? (a) metre (m) (b) litre (L) (c) second (s) (d) newton (N)
  12. 12.Which of these is caused by magnetic force? (a) a compass needle turns (b) lifting a school bag (c) brakes stop a bicycle (d) a rolling ball slows
  13. 13.💪 Which force is at work: lifting a school bag? (a) muscular force (b) magnetic force (c) gravity (d) friction
  14. 14.💪 Which force is at work: squeezing a lemon? (a) magnetic force (b) muscular force (c) gravity (d) friction
  15. 15.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  16. 16.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  17. 17.Which of these is caused by gravity? (a) squeezing a lemon (b) a compass needle turns (c) pedalling a cycle (d) a thrown ball comes down
  18. 18.💪 A cart is pulled to the right with 50 N and to the left with 40 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  19. 19.Which of these is caused by friction? (a) a fridge magnet sticks (b) squeezing a lemon (c) rubbing hands warms them (d) an apple falls down
  20. 20.Which of these is caused by muscular force? (a) squeezing a lemon (b) a compass needle turns (c) an apple falls down (d) brakes stop a bicycle
  21. 21.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  22. 22.💪 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) to the left (b) to the right (c) no net force
  23. 23.💪 A box weighs 220 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  24. 24.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) gravity (c) doubled (d) unbalanced
  25. 25.True or false: pushing a swing is a push. (a) False (b) True
  26. 26.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) friction (c) gravity (d) muscular force
  27. 27.True or false: hitting a cricket ball is a push. (a) False (b) True
  28. 28.💪 Which can a force NOT do? (a) start it moving (b) change its colour (c) stop it moving (d) change its shape
  29. 29.True or false: pulling a cart is a push. (a) True (b) False
  30. 30.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  31. 31.💪 A box weighs 90 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  32. 32.💪 Two children push a box to the right, one with 50 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  33. 33.💪 Two children push a box to the right, one with 65 N and the other with 100 N. What is the net (total) force on the box, in newtons?
  34. 34.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  35. 35.Which of these is caused by magnetic force? (a) shoes grip the floor (b) brakes stop a bicycle (c) a magnet picks up pins (d) rain falls to the ground
  36. 36.💪 A cart is pulled to the right with 25 N and to the left with 15 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  37. 37.True or false: closing a drawer is a pull. (a) True (b) False
  38. 38.True or false: pulling a cart is a pull. (a) False (b) True
  39. 39.True or false: pressing a doorbell is a pull. (a) False (b) True
  40. 40.💪 In a tug of war, one team pulls right with 60 N and the other pulls left with 10 N. What is the size of the net force, in newtons?

Answer key

  1. 510
  2. 120
  3. False
  4. 5
  5. push or a pull
  6. 5
  7. a push
  8. 105
  9. 135
  10. 15
  11. newton (N)
  12. a compass needle turns
  13. muscular force
  14. muscular force
  15. a pull
  16. 10
  17. a thrown ball comes down
  18. to the right
  19. rubbing hands warms them
  20. squeezing a lemon
  21. a push
  22. to the right
  23. 22
  24. balanced
  25. True
  26. gravity
  27. True
  28. change its colour
  29. False
  30. a push
  31. 9
  32. 65
  33. 165
  34. a push
  35. a magnet picks up pins
  36. to the right
  37. False
  38. True
  39. False
  40. 50

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