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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 65 · 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 a raincoat? (a) cotton wool (b) paper (c) plastic-coated cloth (d) cardboard
  2. 2.🧱 Which property matters most for a skipping rope? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  3. 3.🔍 Which is the odd one out? (a) iron (b) graphite (c) glass (d) brass
  4. 4.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.True or false: a hair band needs a waterproof material. (a) True (b) False
  6. 6.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) cotton cloth (d) copper
  7. 7.True or false: a cooking pot handle needs a transparent material. (a) True (b) False
  8. 8.🔍 Which is the odd one out? (a) steel (b) iron (c) plastic (d) copper
  9. 9.True or false: a raincoat needs a waterproof material. (a) False (b) True
  10. 10.Which of these needs a waterproof material? (a) a tea flask lining (b) a spectacle lens (c) a hair band (d) a water tank
  11. 11.Which of these needs a flexible material? (a) a raincoat (b) a roof sheet (c) a yoga mat (d) an oven glove
  12. 12.🧱 Which property matters most for a plug pin? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  13. 13.True or false: a spectacle lens needs an electrical conductor. (a) True (b) False
  14. 14.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🔍 Which is the odd one out? (a) copper (b) graphite (c) brass (d) clay pottery
  16. 16.🧱 Which property matters most for a car windscreen? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  17. 17.Which of these needs a flexible material? (a) a plug pin (b) a cooking pot handle (c) a boat hull (d) a hair band
  18. 18.🔍 Which is the odd one out? (a) iron (b) clay pottery (c) plastic (d) rubber
  19. 19.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  20. 20.Which of these needs a waterproof material? (a) a yoga mat (b) a magnifier lens (c) a boat hull (d) a window pane
  21. 21.Which of these needs a heat insulator? (a) an oven glove (b) a water tank (c) an umbrella cover (d) the core of a wire
  22. 22.Which of these needs a waterproof material? (a) a switch contact (b) a car seat belt (c) a cooking pot handle (d) a raincoat
  23. 23.Which of these needs an electrical conductor? (a) a switch contact (b) an oven glove (c) a raincoat (d) a boat hull
  24. 24.True or false: a boat hull needs a flexible material. (a) True (b) False
  25. 25.Which of these needs a waterproof material? (a) a hair band (b) a car seat belt (c) a tea flask lining (d) a roof sheet
  26. 26.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.Which of these needs an electrical conductor? (a) the core of a wire (b) a car seat belt (c) a raincoat (d) an umbrella cover
  28. 28.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  29. 29.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  30. 30.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  31. 31.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) wood (d) glass
  32. 32.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  33. 33.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) glass (d) rubber
  34. 34.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  35. 35.🧱 Which property matters most for a tea flask lining? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  36. 36.Which of these needs a heat insulator? (a) a cooking pot handle (b) a spectacle lens (c) a skipping rope (d) a water tank
  37. 37.True or false: an umbrella cover needs an electrical conductor. (a) False (b) True
  38. 38.🧱 Which material is best for a window pane? (a) steel (b) glass (c) brick (d) wood
  39. 39.Which of these needs a transparent material? (a) a window pane (b) a plug pin (c) a switch contact (d) an umbrella cover
  40. 40.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator

Answer key

  1. plastic-coated cloth
  2. flexible
  3. glass
  4. a conductor
  5. False
  6. cotton cloth
  7. False
  8. plastic
  9. True
  10. a water tank
  11. a yoga mat
  12. electrical conductor
  13. False
  14. an insulator
  15. clay pottery
  16. transparent
  17. a hair band
  18. iron
  19. True
  20. a boat hull
  21. an oven glove
  22. a raincoat
  23. a switch contact
  24. False
  25. a roof sheet
  26. an insulator
  27. the core of a wire
  28. heat insulator
  29. steel
  30. heat insulator
  31. copper
  32. True
  33. copper
  34. flexible
  35. heat insulator
  36. a cooking pot handle
  37. False
  38. glass
  39. a window pane
  40. waterproof

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