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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 588 · 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 bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  2. 2.Which of these needs a waterproof material? (a) an umbrella cover (b) a hair band (c) a car seat belt (d) a tea flask lining
  3. 3.Which of these needs a transparent material? (a) a window pane (b) a raincoat (c) a car seat belt (d) a plug pin
  4. 4.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  5. 5.🧱 Which property matters most for a yoga mat? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  6. 6.🔍 Which is the odd one out? (a) steel (b) graphite (c) aluminium (d) clay pottery
  7. 7.🔍 Which is the odd one out? (a) iron (b) copper (c) graphite (d) plastic
  8. 8.True or false: a water tank needs a waterproof material. (a) False (b) True
  9. 9.🧱 Which property matters most for an oven glove? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  10. 10.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) copper (d) iron
  12. 12.🔍 Which is the odd one out? (a) copper (b) aluminium (c) graphite (d) glass
  13. 13.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  14. 14.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  16. 16.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  17. 17.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.True or false: an oven glove needs a heat insulator. (a) False (b) True
  19. 19.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  20. 20.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  21. 21.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  22. 22.Which of these needs an electrical conductor? (a) a switch contact (b) an umbrella cover (c) a skipping rope (d) an oven glove
  23. 23.True or false: a car seat belt needs a flexible material. (a) True (b) False
  24. 24.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  25. 25.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  26. 26.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  29. 29.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.True or false: a water tank needs a flexible material. (a) True (b) False
  31. 31.🔍 Which is the odd one out? (a) plastic (b) rubber (c) dry wood (d) iron
  32. 32.True or false: a raincoat needs a waterproof material. (a) False (b) True
  33. 33.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.True or false: a car windscreen needs an electrical conductor. (a) True (b) False
  35. 35.True or false: a raincoat needs a heat insulator. (a) False (b) True
  36. 36.🧱 Which property matters most for a water tank? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  37. 37.True or false: a boat hull needs a waterproof material. (a) True (b) False
  38. 38.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  39. 39.🔍 Which is the odd one out? (a) brass (b) dry wood (c) steel (d) copper
  40. 40.Which of these needs a flexible material? (a) a water tank (b) a switch contact (c) a cooking pot handle (d) a hair band

Answer key

  1. steel
  2. an umbrella cover
  3. a window pane
  4. copper
  5. flexible
  6. clay pottery
  7. plastic
  8. True
  9. heat insulator
  10. an insulator
  11. wood or plastic
  12. glass
  13. True
  14. an insulator
  15. True
  16. plastic-coated cloth
  17. an insulator
  18. True
  19. glass
  20. True
  21. transparent
  22. a switch contact
  23. True
  24. waterproof
  25. waterproof
  26. an insulator
  27. a conductor
  28. flexible
  29. a conductor
  30. False
  31. iron
  32. True
  33. a conductor
  34. False
  35. False
  36. waterproof
  37. True
  38. True
  39. dry wood
  40. a hair band

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