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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 590 · 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) plastic (b) copper (c) steel (d) aluminium
  2. 2.🧱 Which property matters most for a hair band? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  3. 3.Which of these needs an electrical conductor? (a) a spectacle lens (b) a switch contact (c) a car seat belt (d) a magnifier lens
  4. 4.True or false: a yoga mat needs a flexible material. (a) False (b) True
  5. 5.Which of these needs a transparent material? (a) a plug pin (b) a roof sheet (c) a magnifier lens (d) a tea flask lining
  6. 6.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  7. 7.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  8. 8.🔍 Which is the odd one out? (a) steel (b) aluminium (c) iron (d) clay pottery
  9. 9.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  10. 10.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  11. 11.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  13. 13.True or false: a spectacle lens needs a flexible material. (a) False (b) True
  14. 14.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  15. 15.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.True or false: a raincoat needs a flexible material. (a) True (b) False
  17. 17.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  18. 18.🧱 Which property matters most for a skipping rope? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  19. 19.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  21. 21.Which of these needs a transparent material? (a) a car seat belt (b) a skipping rope (c) a car windscreen (d) an oven glove
  22. 22.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  23. 23.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.Which of these needs an electrical conductor? (a) a cooking pot handle (b) the core of a wire (c) a magnifier lens (d) a raincoat
  25. 25.True or false: an umbrella cover needs an electrical conductor. (a) False (b) True
  26. 26.True or false: a tea flask lining needs a flexible material. (a) True (b) False
  27. 27.True or false: a hair band needs a heat insulator. (a) True (b) False
  28. 28.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  30. 30.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) glass (d) aluminium
  31. 31.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  33. 33.True or false: an oven glove needs an electrical conductor. (a) True (b) False
  34. 34.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
  35. 35.Which of these needs a waterproof material? (a) a car seat belt (b) a window pane (c) a roof sheet (d) a skipping rope
  36. 36.🧱 Which property matters most for a plug pin? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  37. 37.True or false: the core of a wire needs a transparent material. (a) True (b) False
  38. 38.True or false: a car seat belt needs an electrical conductor. (a) True (b) False
  39. 39.🧱 Which property matters most for an umbrella cover? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  40. 40.True or false: a car windscreen needs a transparent material. (a) True (b) False

Answer key

  1. plastic
  2. flexible
  3. a switch contact
  4. True
  5. a magnifier lens
  6. electrical conductor
  7. transparent
  8. clay pottery
  9. glass
  10. False
  11. an insulator
  12. wood or plastic
  13. False
  14. steel
  15. an insulator
  16. False
  17. electrical conductor
  18. flexible
  19. an insulator
  20. flexible
  21. a car windscreen
  22. True
  23. a conductor
  24. the core of a wire
  25. False
  26. False
  27. False
  28. an insulator
  29. transparent
  30. aluminium
  31. a conductor
  32. heat insulator
  33. False
  34. plastic-coated cloth
  35. a roof sheet
  36. electrical conductor
  37. False
  38. False
  39. waterproof
  40. True

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