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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 452 · 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.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  3. 3.Which of these needs an electrical conductor? (a) a car seat belt (b) a plug pin (c) a car windscreen (d) a water tank
  4. 4.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.True or false: a skipping rope needs a heat insulator. (a) False (b) True
  6. 6.🔍 Which is the odd one out? (a) dry wood (b) glass (c) cotton cloth (d) iron
  7. 7.Which of these needs a heat insulator? (a) a spectacle lens (b) an umbrella cover (c) an oven glove (d) a car seat belt
  8. 8.Which of these needs a waterproof material? (a) a boat hull (b) a plug pin (c) the core of a wire (d) a tea flask lining
  9. 9.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) plastic (d) glass
  10. 10.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  11. 11.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  13. 13.🔍 Which is the odd one out? (a) steel (b) iron (c) aluminium (d) plastic
  14. 14.🧱 Which property matters most for a car seat belt? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  15. 15.🧱 Which property matters most for a roof sheet? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  16. 16.Which of these needs a transparent material? (a) a plug pin (b) a water tank (c) a window pane (d) a car seat belt
  17. 17.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  18. 18.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  19. 19.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  20. 20.Which of these needs a transparent material? (a) a boat hull (b) a plug pin (c) a water tank (d) a magnifier lens
  21. 21.🧱 Which property matters most for a hair band? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  22. 22.True or false: a water tank needs a waterproof material. (a) False (b) True
  23. 23.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  24. 24.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  25. 25.True or false: a switch contact needs a transparent material. (a) True (b) False
  26. 26.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.True or false: a car windscreen needs a heat insulator. (a) False (b) True
  28. 28.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) copper (d) iron
  29. 29.🧱 Which property matters most for an oven glove? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  30. 30.True or false: a window pane needs a transparent material. (a) True (b) False
  31. 31.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) copper (d) brass
  33. 33.Which of these needs an electrical conductor? (a) a switch contact (b) a magnifier lens (c) a car windscreen (d) a window pane
  34. 34.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) rubber (d) steel
  35. 35.Which of these needs a waterproof material? (a) a car seat belt (b) a roof sheet (c) a window pane (d) a car windscreen
  36. 36.🧱 Which property matters most for a skipping rope? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  37. 37.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  38. 38.True or false: a boat hull needs a transparent material. (a) False (b) True
  39. 39.Which of these needs a transparent material? (a) a hair band (b) a car seat belt (c) a yoga mat (d) a spectacle lens
  40. 40.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) rubber (d) copper

Answer key

  1. an insulator
  2. waterproof
  3. a plug pin
  4. an insulator
  5. False
  6. iron
  7. an oven glove
  8. a boat hull
  9. steel
  10. transparent
  11. an insulator
  12. True
  13. plastic
  14. flexible
  15. waterproof
  16. a window pane
  17. plastic-coated cloth
  18. False
  19. True
  20. a magnifier lens
  21. flexible
  22. True
  23. True
  24. electrical conductor
  25. False
  26. a conductor
  27. False
  28. wood or plastic
  29. heat insulator
  30. True
  31. a conductor
  32. cotton cloth
  33. a switch contact
  34. steel
  35. a roof sheet
  36. flexible
  37. False
  38. False
  39. a spectacle lens
  40. rubber

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