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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 480 · 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.💪 Which force is at work: a rolling ball slows? (a) gravity (b) magnetic force (c) friction (d) muscular force
  2. 2.Which of these is caused by magnetic force? (a) lifting a school bag (b) a fridge magnet sticks (c) squeezing a lemon (d) a river flows downhill
  3. 3.💪 Which force is at work: a compass needle turns? (a) gravity (b) muscular force (c) friction (d) magnetic force
  4. 4.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  5. 5.Which of these is caused by friction? (a) a magnet picks up pins (b) a compass needle turns (c) rubbing hands warms them (d) an apple falls down
  6. 6.Which of these is caused by magnetic force? (a) lifting a school bag (b) brakes stop a bicycle (c) an apple falls down (d) a magnet picks up pins
  7. 7.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) gravity (c) muscular force (d) friction
  8. 8.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  9. 9.True or false: closing a drawer is a pull. (a) False (b) True
  10. 10.💪 In a tug of war, one team pulls left with 50 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  11. 11.True or false: pulling a cart is a push. (a) True (b) False
  12. 12.💪 In a tug of war, one team pulls right with 55 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  13. 13.💪 In a tug of war, one team pulls left with 10 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  14. 14.Which of these is caused by magnetic force? (a) lifting a school bag (b) shoes grip the floor (c) a compass needle turns (d) squeezing a lemon
  15. 15.💪 In a tug of war, one team pulls left with 40 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  16. 16.💪 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?
  17. 17.Which of these is caused by friction? (a) a fridge magnet sticks (b) shoes grip the floor (c) a magnet picks up pins (d) a compass needle turns
  18. 18.💪 Which force pulls everything towards the Earth? (a) magnetism (b) wind (c) friction (d) gravity
  19. 19.💪 A bag has a mass of 28 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  20. 20.Which of these is caused by friction? (a) brakes stop a bicycle (b) squeezing a lemon (c) a fridge magnet sticks (d) rain falls to the ground
  21. 21.💪 Which force is at work: a magnet picks up pins? (a) gravity (b) friction (c) muscular force (d) magnetic force
  22. 22.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  23. 23.💪 Which can a force NOT do? (a) stop it moving (b) change its shape (c) start it moving (d) change its colour
  24. 24.💪 A bag has a mass of 49 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  25. 25.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  26. 26.💪 In a tug of war, one team pulls left with 85 N and the other pulls right with 70 N. What is the size of the net force, in newtons?
  27. 27.💪 In a tug of war, one team pulls left with 85 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
  28. 28.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  29. 29.💪 A bag has a mass of 12 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  30. 30.💪 Two children push a box to the right, one with 55 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  31. 31.True or false: a tug of war is a push. (a) True (b) False
  32. 32.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  33. 33.💪 Two children push a box to the right, one with 90 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  34. 34.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  35. 35.💪 A cart is pulled to the right with 35 N and to the left with 30 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  36. 36.True or false: closing a drawer is a push. (a) True (b) False
  37. 37.💪 In a tug of war, one team pulls right with 55 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
  38. 38.💪 Two children push a box to the right, one with 65 N and the other with 75 N. What is the net (total) force on the box, in newtons?
  39. 39.💪 A force is a … (a) push or a pull (b) kind of colour (c) unit of time (d) type of sound
  40. 40.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) gravity (c) friction (d) muscular force

Answer key

  1. friction
  2. a fridge magnet sticks
  3. magnetic force
  4. a push
  5. rubbing hands warms them
  6. a magnet picks up pins
  7. gravity
  8. a pull
  9. False
  10. 35
  11. False
  12. 40
  13. 5
  14. a compass needle turns
  15. 35
  16. 20
  17. shoes grip the floor
  18. gravity
  19. 280
  20. brakes stop a bicycle
  21. magnetic force
  22. a pull
  23. change its colour
  24. 490
  25. a push
  26. 15
  27. 45
  28. a push
  29. 120
  30. 70
  31. False
  32. a push
  33. 110
  34. a pull
  35. to the right
  36. True
  37. 15
  38. 140
  39. push or a pull
  40. gravity

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