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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 701 · 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 material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  2. 2.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) paper (d) cotton wool
  4. 4.🔍 Which is the odd one out? (a) steel (b) brass (c) iron (d) dry wood
  5. 5.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) graphite (d) rubber
  6. 6.🧱 Which property matters most for a car seat belt? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  7. 7.Which of these needs a heat insulator? (a) a water tank (b) a boat hull (c) a raincoat (d) a cooking pot handle
  8. 8.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) plastic (d) iron
  10. 10.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  12. 12.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which property matters most for a hair band? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  14. 14.True or false: a raincoat needs a transparent material. (a) False (b) True
  15. 15.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) glass (d) aluminium
  16. 16.True or false: a water tank needs a waterproof material. (a) False (b) True
  17. 17.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  19. 19.Which of these needs a waterproof material? (a) a window pane (b) a water tank (c) an oven glove (d) a car seat belt
  20. 20.Which of these needs an electrical conductor? (a) a car seat belt (b) the core of a wire (c) a raincoat (d) a car windscreen
  21. 21.🧱 Which property matters most for a boat hull? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  22. 22.True or false: a yoga mat needs a flexible material. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) steel (d) dry wood
  24. 24.🔍 Which is the odd one out? (a) steel (b) rubber (c) brass (d) iron
  25. 25.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
  26. 26.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  27. 27.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  28. 28.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) rubber (d) dry wood
  30. 30.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) steel (d) graphite
  31. 31.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  32. 32.Which of these needs a waterproof material? (a) a skipping rope (b) an umbrella cover (c) a switch contact (d) a spectacle lens
  33. 33.Which of these needs a transparent material? (a) a magnifier lens (b) a water tank (c) a raincoat (d) a yoga mat
  34. 34.🔍 Which is the odd one out? (a) plastic (b) iron (c) graphite (d) aluminium
  35. 35.True or false: a tea flask lining needs a flexible material. (a) False (b) True
  36. 36.True or false: a car windscreen needs a transparent material. (a) True (b) False
  37. 37.🧱 Which property matters most for a yoga mat? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  38. 38.True or false: a roof sheet needs a flexible material. (a) False (b) True
  39. 39.True or false: a hair band needs a heat insulator. (a) True (b) False
  40. 40.Which of these needs a waterproof material? (a) a window pane (b) an oven glove (c) a raincoat (d) a cooking pot handle

Answer key

  1. copper
  2. an insulator
  3. plastic-coated cloth
  4. dry wood
  5. graphite
  6. flexible
  7. a cooking pot handle
  8. a conductor
  9. iron
  10. a conductor
  11. wood or plastic
  12. a conductor
  13. flexible
  14. False
  15. aluminium
  16. True
  17. an insulator
  18. steel
  19. a water tank
  20. the core of a wire
  21. waterproof
  22. True
  23. steel
  24. rubber
  25. glass
  26. waterproof
  27. electrical conductor
  28. a conductor
  29. copper
  30. clay pottery
  31. True
  32. an umbrella cover
  33. a magnifier lens
  34. plastic
  35. False
  36. True
  37. flexible
  38. False
  39. False
  40. a raincoat

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