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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 800 · 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) copper (b) brass (c) cotton cloth (d) aluminium
  2. 2.🧱 Which property matters most for a roof sheet? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  3. 3.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
  4. 4.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) copper (d) steel
  5. 5.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) brass (d) plastic
  6. 6.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  7. 7.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  8. 8.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.Which of these needs a waterproof material? (a) a magnifier lens (b) a water tank (c) an oven glove (d) a tea flask lining
  10. 10.🧱 Which property matters most for a tea flask lining? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  11. 11.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  12. 12.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  13. 13.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.Which of these needs an electrical conductor? (a) a magnifier lens (b) a skipping rope (c) a switch contact (d) an umbrella cover
  16. 16.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.Which of these needs a waterproof material? (a) an oven glove (b) a raincoat (c) a car seat belt (d) the core of a wire
  18. 18.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) iron (d) aluminium
  19. 19.Which of these needs a flexible material? (a) a tea flask lining (b) a cooking pot handle (c) a car seat belt (d) a water tank
  20. 20.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  21. 21.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  22. 22.🧱 Which property matters most for a hair band? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  23. 23.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.True or false: a skipping rope needs a transparent material. (a) False (b) True
  25. 25.True or false: a hair band needs a flexible material. (a) False (b) True
  26. 26.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which property matters most for a yoga mat? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  28. 28.True or false: a yoga mat needs a heat insulator. (a) True (b) False
  29. 29.🔍 Which is the odd one out? (a) glass (b) graphite (c) rubber (d) dry wood
  30. 30.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  31. 31.🧱 Which property matters most for a skipping rope? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  32. 32.True or false: a magnifier lens needs a heat insulator. (a) False (b) True
  33. 33.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.Which of these needs a waterproof material? (a) a car windscreen (b) a roof sheet (c) a yoga mat (d) a skipping rope
  35. 35.Which of these needs a flexible material? (a) a switch contact (b) a skipping rope (c) an oven glove (d) a magnifier lens
  36. 36.🧱 Which property matters most for a water tank? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  37. 37.True or false: a skipping rope needs a flexible material. (a) True (b) False
  38. 38.True or false: a switch contact needs a waterproof material. (a) True (b) False
  39. 39.Which of these needs a heat insulator? (a) a window pane (b) a spectacle lens (c) a roof sheet (d) a cooking pot handle
  40. 40.🔍 Which is the odd one out? (a) graphite (b) copper (c) iron (d) dry wood

Answer key

  1. cotton cloth
  2. waterproof
  3. steel
  4. clay pottery
  5. brass
  6. True
  7. False
  8. a conductor
  9. a water tank
  10. heat insulator
  11. heat insulator
  12. plastic-coated cloth
  13. a conductor
  14. a conductor
  15. a switch contact
  16. an insulator
  17. a raincoat
  18. wood or plastic
  19. a car seat belt
  20. waterproof
  21. copper
  22. flexible
  23. an insulator
  24. False
  25. True
  26. an insulator
  27. flexible
  28. False
  29. graphite
  30. True
  31. flexible
  32. False
  33. an insulator
  34. a roof sheet
  35. a skipping rope
  36. waterproof
  37. True
  38. False
  39. a cooking pot handle
  40. dry wood

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