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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 815 · 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.True or false: pulling up your socks is a push. (a) False (b) True
  2. 2.True or false: pulling a cart is a push. (a) False (b) True
  3. 3.True or false: hitting a cricket ball is a push. (a) True (b) False
  4. 4.True or false: plucking a mango is a pull. (a) True (b) False
  5. 5.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  6. 6.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  7. 7.💪 A force is a … (a) type of sound (b) push or a pull (c) unit of time (d) kind of colour
  8. 8.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  9. 9.💪 Which force is at work: a thrown ball comes down? (a) friction (b) magnetic force (c) gravity (d) muscular force
  10. 10.True or false: closing a drawer is a pull. (a) True (b) False
  11. 11.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  12. 12.💪 Which force is at work: a compass needle turns? (a) muscular force (b) friction (c) gravity (d) magnetic force
  13. 13.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  14. 14.💪 A cart is pulled to the right with 25 N and to the left with 10 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  15. 15.💪 A box weighs 150 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  16. 16.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) friction (c) magnetic force (d) gravity
  17. 17.💪 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?
  18. 18.True or false: pulling a cart is a pull. (a) False (b) True
  19. 19.True or false: drawing up a well bucket is a push. (a) True (b) False
  20. 20.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  21. 21.💪 A cart is pulled to the right with 30 N and to the left with 15 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  22. 22.True or false: pressing a doorbell is a pull. (a) True (b) False
  23. 23.💪 Two children push a box to the right, one with 30 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  24. 24.💪 Two children push a box to the right, one with 25 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  25. 25.💪 A bag has a mass of 54 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  26. 26.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) gravity (c) friction (d) magnetic force
  27. 27.💪 Which force is at work: a magnet picks up pins? (a) friction (b) muscular force (c) magnetic force (d) gravity
  28. 28.Which of these is caused by gravity? (a) a thrown ball comes down (b) shoes grip the floor (c) a rolling ball slows (d) a compass needle turns
  29. 29.💪 Two children push a box to the right, one with 65 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  30. 30.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) gravity (c) muscular force (d) friction
  31. 31.True or false: drawing up a well bucket is a pull. (a) True (b) False
  32. 32.💪 Two children push a box to the right, one with 75 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  33. 33.💪 Two children push a box to the right, one with 75 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  34. 34.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  35. 35.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  36. 36.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) gravity (c) friction (d) magnetic force
  37. 37.💪 A bag has a mass of 52 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  38. 38.💪 A cart is pulled to the right with 60 N and to the left with 55 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  39. 39.💪 Which can a force NOT do? (a) change its colour (b) change its shape (c) start it moving (d) stop it moving
  40. 40.Which of these is caused by gravity? (a) a fridge magnet sticks (b) a compass needle turns (c) a rolling ball slows (d) an apple falls down

Answer key

  1. False
  2. False
  3. True
  4. True
  5. a pull
  6. 15
  7. push or a pull
  8. a push
  9. gravity
  10. False
  11. 40
  12. magnetic force
  13. a pull
  14. to the right
  15. 15
  16. gravity
  17. 20
  18. True
  19. False
  20. 5
  21. to the right
  22. False
  23. 35
  24. 40
  25. 540
  26. friction
  27. magnetic force
  28. a thrown ball comes down
  29. 105
  30. muscular force
  31. True
  32. 170
  33. 100
  34. a pull
  35. a pull
  36. magnetic force
  37. 520
  38. to the right
  39. change its colour
  40. an apple falls down

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