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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 674 · 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.🔍 Which is the odd one out? (a) aluminium (b) iron (c) steel (d) rubber
  2. 2.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  3. 3.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.True or false: a car seat belt needs a heat insulator. (a) False (b) True
  6. 6.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.Which of these needs a heat insulator? (a) a raincoat (b) a boat hull (c) a cooking pot handle (d) the core of a wire
  8. 8.🧱 Which property matters most for a switch contact? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  9. 9.🔍 Which is the odd one out? (a) iron (b) glass (c) clay pottery (d) rubber
  10. 10.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) copper (d) iron
  11. 11.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  12. 12.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  13. 13.🧱 Which property matters most for a hair band? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  14. 14.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  15. 15.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.Which of these needs a heat insulator? (a) a car windscreen (b) a roof sheet (c) a plug pin (d) an oven glove
  17. 17.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) wood (d) copper
  18. 18.🧱 Which property matters most for a water tank? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  19. 19.Which of these needs a heat insulator? (a) a yoga mat (b) the core of a wire (c) a raincoat (d) a tea flask lining
  20. 20.Which of these needs a transparent material? (a) a tea flask lining (b) a yoga mat (c) a raincoat (d) a magnifier lens
  21. 21.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  22. 22.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  23. 23.Which of these needs a flexible material? (a) the core of a wire (b) a hair band (c) a car windscreen (d) an oven glove
  24. 24.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  25. 25.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
  26. 26.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) rubber (d) aluminium
  27. 27.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  28. 28.🧱 Which property matters most for a boat hull? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  29. 29.Which of these needs a transparent material? (a) a window pane (b) a tea flask lining (c) a switch contact (d) a boat hull
  30. 30.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) cotton cloth (d) graphite
  31. 31.🧱 Which property matters most for the core of a wire? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  32. 32.Which of these needs a waterproof material? (a) an oven glove (b) a window pane (c) a car seat belt (d) a roof sheet
  33. 33.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  35. 35.🧱 Which property matters most for an oven glove? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  36. 36.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) clay pottery (d) plastic
  37. 37.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) steel (d) glass
  38. 38.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  39. 39.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.Which of these needs a waterproof material? (a) a window pane (b) a cooking pot handle (c) an umbrella cover (d) an oven glove

Answer key

  1. rubber
  2. waterproof
  3. an insulator
  4. a conductor
  5. False
  6. an insulator
  7. a cooking pot handle
  8. electrical conductor
  9. iron
  10. dry wood
  11. transparent
  12. waterproof
  13. flexible
  14. True
  15. an insulator
  16. an oven glove
  17. copper
  18. waterproof
  19. a tea flask lining
  20. a magnifier lens
  21. True
  22. plastic-coated cloth
  23. a hair band
  24. wood or plastic
  25. False
  26. aluminium
  27. waterproof
  28. waterproof
  29. a window pane
  30. graphite
  31. electrical conductor
  32. a roof sheet
  33. a conductor
  34. glass
  35. heat insulator
  36. steel
  37. steel
  38. True
  39. an insulator
  40. an umbrella cover

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