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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 929 · 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: an apple falls down? (a) gravity (b) muscular force (c) friction (d) magnetic force
  2. 2.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  3. 3.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  4. 4.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 55 N. What is the size of the net force, in newtons?
  5. 5.Which of these is caused by gravity? (a) a thrown ball comes down (b) lifting a school bag (c) a compass needle turns (d) a rolling ball slows
  6. 6.💪 A cart is pulled to the right with 80 N and to the left with 95 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  7. 7.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 55 N. What is the size of the net force, in newtons?
  8. 8.Which of these is caused by magnetic force? (a) an apple falls down (b) brakes stop a bicycle (c) shoes grip the floor (d) a magnet picks up pins
  9. 9.True or false: pushing a trolley is a push. (a) False (b) True
  10. 10.💪 Which force is at work: pedalling a cycle? (a) friction (b) gravity (c) magnetic force (d) muscular force
  11. 11.💪 Which force pulls everything towards the Earth? (a) magnetism (b) wind (c) friction (d) gravity
  12. 12.True or false: hitting a cricket ball is a push. (a) True (b) False
  13. 13.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) muscular force (c) magnetic force (d) friction
  14. 14.💪 A cart is pulled to the right with 20 N and to the left with 5 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  15. 15.Which of these is caused by gravity? (a) shoes grip the floor (b) a fridge magnet sticks (c) a magnet picks up pins (d) an apple falls down
  16. 16.💪 Which force is at work: a magnet picks up pins? (a) gravity (b) friction (c) magnetic force (d) muscular force
  17. 17.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  18. 18.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
  19. 19.💪 Two children push a box to the right, one with 50 N and the other with 100 N. What is the net (total) force on the box, in newtons?
  20. 20.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) friction (c) muscular force (d) gravity
  21. 21.💪 Which force is at work: a rolling ball slows? (a) gravity (b) muscular force (c) magnetic force (d) friction
  22. 22.True or false: closing a drawer is a push. (a) True (b) False
  23. 23.Which of these is caused by friction? (a) squeezing a lemon (b) shoes grip the floor (c) lifting a school bag (d) an apple falls down
  24. 24.💪 Two children push a box to the right, one with 60 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  25. 25.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) muscular force (c) gravity (d) friction
  26. 26.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  27. 27.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) muscular force (c) gravity (d) magnetic force
  28. 28.True or false: pulling a cart is a pull. (a) True (b) False
  29. 29.💪 A force is a … (a) type of sound (b) kind of colour (c) push or a pull (d) unit of time
  30. 30.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  31. 31.💪 A bag has a mass of 14 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  32. 32.💪 A bag has a mass of 57 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  33. 33.💪 Two children push a box to the right, one with 20 N and the other with 55 N. What is the net (total) force on the box, in newtons?
  34. 34.💪 In a tug of war, one team pulls left with 40 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  35. 35.True or false: pushing a trolley is a pull. (a) True (b) False
  36. 36.💪 Two children push a box to the right, one with 20 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  37. 37.💪 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) to the right (b) no net force (c) to the left
  38. 38.💪 A cart is pulled to the right with 35 N and to the left with 25 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  39. 39.💪 Which can a force NOT do? (a) change its shape (b) stop it moving (c) change its colour (d) start it moving
  40. 40.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push

Answer key

  1. gravity
  2. a pull
  3. a push
  4. 25
  5. a thrown ball comes down
  6. to the left
  7. 10
  8. a magnet picks up pins
  9. True
  10. muscular force
  11. gravity
  12. True
  13. friction
  14. to the right
  15. an apple falls down
  16. magnetic force
  17. a pull
  18. 50
  19. 150
  20. muscular force
  21. friction
  22. True
  23. shoes grip the floor
  24. 100
  25. gravity
  26. a push
  27. magnetic force
  28. True
  29. push or a pull
  30. a pull
  31. 140
  32. 570
  33. 75
  34. 20
  35. False
  36. 60
  37. to the left
  38. to the right
  39. change its colour
  40. a pull

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