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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 764 · 40 questions
TalentJR

Engineer's tip (Match the property to the job): Ask: what must it do — keep water out, bend, let light through, carry current or stay cool? Metals and graphite conduct electricity; rubber, plastic, dry wood, glass, pottery and cloth insulate. Pick the material whose main property fits the job.

NameDateTime takenScore ___ / 40
  1. 1.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  2. 2.🧱 Which property matters most for the core of a wire? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  3. 3.Which of these needs a waterproof material? (a) a roof sheet (b) a switch contact (c) a car windscreen (d) a car seat belt
  4. 4.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  5. 5.True or false: a boat hull needs a heat insulator. (a) False (b) True
  6. 6.Which of these needs a transparent material? (a) a plug pin (b) a car windscreen (c) an oven glove (d) a cooking pot handle
  7. 7.🧱 Which property matters most for a hair band? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  8. 8.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  9. 9.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.Which of these needs a waterproof material? (a) a yoga mat (b) a water tank (c) an oven glove (d) a car seat belt
  11. 11.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  12. 12.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) copper (d) rubber
  14. 14.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  15. 15.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  16. 16.True or false: a boat hull needs a waterproof material. (a) False (b) True
  17. 17.Which of these needs a heat insulator? (a) a boat hull (b) an umbrella cover (c) a plug pin (d) an oven glove
  18. 18.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  19. 19.True or false: a boat hull needs a transparent material. (a) True (b) False
  20. 20.🔍 Which is the odd one out? (a) graphite (b) rubber (c) cotton cloth (d) clay pottery
  21. 21.Which of these needs a flexible material? (a) an umbrella cover (b) a roof sheet (c) the core of a wire (d) a hair band
  22. 22.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) glass (d) plastic
  23. 23.🧱 Which property matters most for a raincoat? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  24. 24.🔍 Which is the odd one out? (a) rubber (b) plastic (c) aluminium (d) dry wood
  25. 25.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  26. 26.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) iron (b) steel (c) brass (d) glass
  28. 28.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  29. 29.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) glass (d) iron
  30. 30.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🧱 Which property matters most for a plug pin? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  32. 32.Which of these needs a flexible material? (a) a switch contact (b) a car seat belt (c) a magnifier lens (d) the core of a wire
  33. 33.True or false: a car windscreen needs a flexible material. (a) True (b) False
  34. 34.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) copper (d) aluminium
  35. 35.Which of these needs a heat insulator? (a) a tea flask lining (b) a yoga mat (c) a boat hull (d) a plug pin
  36. 36.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  37. 37.True or false: a switch contact needs a waterproof material. (a) True (b) False
  38. 38.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🔍 Which is the odd one out? (a) steel (b) clay pottery (c) plastic (d) rubber
  40. 40.True or false: a hair band needs a flexible material. (a) False (b) True

Answer key

  1. False
  2. electrical conductor
  3. a roof sheet
  4. glass
  5. False
  6. a car windscreen
  7. flexible
  8. waterproof
  9. a conductor
  10. a water tank
  11. copper
  12. an insulator
  13. copper
  14. heat insulator
  15. True
  16. True
  17. an oven glove
  18. True
  19. False
  20. graphite
  21. a hair band
  22. steel
  23. waterproof
  24. aluminium
  25. True
  26. True
  27. glass
  28. True
  29. iron
  30. a conductor
  31. electrical conductor
  32. a car seat belt
  33. False
  34. wood or plastic
  35. a tea flask lining
  36. True
  37. False
  38. an insulator
  39. steel
  40. True

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