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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 481 · 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 property matters most for a window pane? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  2. 2.True or false: a boat hull needs an electrical conductor. (a) True (b) False
  3. 3.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber
  4. 4.Which of these needs a flexible material? (a) a tea flask lining (b) a raincoat (c) a hair band (d) a spectacle lens
  5. 5.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  6. 6.🔍 Which is the odd one out? (a) copper (b) brass (c) glass (d) steel
  7. 7.🔍 Which is the odd one out? (a) copper (b) brass (c) iron (d) plastic
  8. 8.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  9. 9.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) rubber (d) copper
  10. 10.Which of these needs a waterproof material? (a) an oven glove (b) a skipping rope (c) a water tank (d) a switch contact
  11. 11.🧱 Which property matters most for a raincoat? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  12. 12.Which of these needs a transparent material? (a) a car windscreen (b) a cooking pot handle (c) a switch contact (d) an oven glove
  13. 13.True or false: a car seat belt needs a flexible material. (a) False (b) True
  14. 14.True or false: a skipping rope needs a flexible material. (a) True (b) False
  15. 15.Which of these needs a waterproof material? (a) a tea flask lining (b) a magnifier lens (c) a hair band (d) a boat hull
  16. 16.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.True or false: a magnifier lens needs an electrical conductor. (a) False (b) True
  18. 18.🧱 Which property matters most for a plug pin? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  19. 19.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  20. 20.Which of these needs a transparent material? (a) the core of a wire (b) a boat hull (c) a window pane (d) a yoga mat
  21. 21.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) plastic (d) steel
  22. 22.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  25. 25.🧱 Which property matters most for a roof sheet? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  26. 26.🔍 Which is the odd one out? (a) cotton cloth (b) graphite (c) rubber (d) dry wood
  27. 27.True or false: a boat hull needs a flexible material. (a) True (b) False
  28. 28.True or false: a raincoat needs a waterproof material. (a) True (b) False
  29. 29.Which of these needs a waterproof material? (a) a hair band (b) a car windscreen (c) a switch contact (d) a raincoat
  30. 30.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  31. 31.Which of these needs an electrical conductor? (a) a switch contact (b) a hair band (c) a boat hull (d) a yoga mat
  32. 32.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  33. 33.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  34. 34.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.Which of these needs a waterproof material? (a) a yoga mat (b) a car windscreen (c) a skipping rope (d) an umbrella cover
  36. 36.🧱 Which property matters most for a boat hull? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  37. 37.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  38. 38.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) plastic (d) rubber
  39. 39.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  40. 40.True or false: a tea flask lining needs a heat insulator. (a) False (b) True

Answer key

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

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