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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 370 · 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.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  2. 2.💪 A cart is pulled to the right with 95 N and to the left with 110 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  3. 3.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  4. 4.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  5. 5.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  6. 6.💪 Which force pulls everything towards the Earth? (a) magnetism (b) gravity (c) wind (d) friction
  7. 7.💪 Two children push a box to the right, one with 25 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  8. 8.Which of these is caused by gravity? (a) a magnet picks up pins (b) shoes grip the floor (c) an apple falls down (d) brakes stop a bicycle
  9. 9.True or false: pulling up your socks is a pull. (a) False (b) True
  10. 10.💪 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?
  11. 11.True or false: opening a drawer is a push. (a) True (b) False
  12. 12.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) magnetic force (c) friction (d) gravity
  13. 13.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  14. 14.💪 Which force is at work: a river flows downhill? (a) muscular force (b) friction (c) gravity (d) magnetic force
  15. 15.💪 A cart is pulled to the right with 60 N and to the left with 65 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  16. 16.💪 A bag has a mass of 27 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  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.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) doubled (c) balanced (d) unbalanced
  19. 19.💪 A cart is pulled to the right with 70 N and to the left with 75 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  20. 20.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) gravity (c) friction (d) muscular force
  21. 21.💪 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) no net force (b) to the right (c) to the left
  22. 22.💪 In a tug of war, one team pulls left with 45 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  23. 23.Which of these is caused by friction? (a) pedalling a cycle (b) squeezing a lemon (c) an apple falls down (d) rubbing hands warms them
  24. 24.True or false: opening a drawer is a pull. (a) True (b) False
  25. 25.💪 A cart is pulled to the right with 20 N and to the left with 25 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  26. 26.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) magnetic force (c) friction (d) gravity
  27. 27.True or false: pressing a doorbell is a pull. (a) False (b) True
  28. 28.💪 A cart is pulled to the right with 90 N and to the left with 85 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  29. 29.💪 Two children push a box to the right, one with 80 N and the other with 65 N. What is the net (total) force on the box, in newtons?
  30. 30.💪 Which force is at work: squeezing a lemon? (a) friction (b) gravity (c) magnetic force (d) muscular force
  31. 31.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  32. 32.Which of these is caused by muscular force? (a) an apple falls down (b) a magnet picks up pins (c) lifting a school bag (d) a compass needle turns
  33. 33.💪 Two children push a box to the right, one with 60 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  34. 34.💪 A box weighs 270 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  35. 35.💪 In which unit do we measure force? (a) metre (m) (b) newton (N) (c) litre (L) (d) second (s)
  36. 36.💪 Which can a force NOT do? (a) stop it moving (b) change its colour (c) change its shape (d) start it moving
  37. 37.True or false: plucking a mango is a pull. (a) False (b) True
  38. 38.Which of these is caused by gravity? (a) rubbing hands warms them (b) rain falls to the ground (c) a rolling ball slows (d) brakes stop a bicycle
  39. 39.True or false: plucking a mango is a push. (a) True (b) False
  40. 40.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) a fridge magnet sticks (c) a rolling ball slows (d) pedalling a cycle

Answer key

  1. a pull
  2. to the left
  3. a pull
  4. a pull
  5. a push
  6. gravity
  7. 75
  8. an apple falls down
  9. True
  10. 155
  11. False
  12. gravity
  13. 10
  14. gravity
  15. to the left
  16. 270
  17. 480
  18. balanced
  19. to the left
  20. gravity
  21. to the left
  22. 20
  23. rubbing hands warms them
  24. True
  25. to the left
  26. friction
  27. False
  28. to the right
  29. 145
  30. muscular force
  31. a push
  32. lifting a school bag
  33. 105
  34. 27
  35. newton (N)
  36. change its colour
  37. True
  38. rain falls to the ground
  39. False
  40. pedalling a cycle

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