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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 669 · 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 an oven glove? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  2. 2.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.Which of these needs a waterproof material? (a) a skipping rope (b) a roof sheet (c) a yoga mat (d) a spectacle lens
  5. 5.🔍 Which is the odd one out? (a) rubber (b) plastic (c) copper (d) clay pottery
  6. 6.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  7. 7.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🧱 Which property matters most for a window pane? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  9. 9.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  10. 10.Which of these needs an electrical conductor? (a) a water tank (b) a tea flask lining (c) a switch contact (d) a skipping rope
  11. 11.Which of these needs a heat insulator? (a) the core of a wire (b) a switch contact (c) a cooking pot handle (d) an umbrella cover
  12. 12.🔍 Which is the odd one out? (a) graphite (b) plastic (c) steel (d) iron
  13. 13.🔍 Which is the odd one out? (a) iron (b) steel (c) copper (d) cotton cloth
  14. 14.Which of these needs a flexible material? (a) an umbrella cover (b) a water tank (c) a car seat belt (d) a tea flask lining
  15. 15.🔍 Which is the odd one out? (a) glass (b) graphite (c) plastic (d) clay pottery
  16. 16.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  17. 17.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard
  18. 18.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  19. 19.Which of these needs an electrical conductor? (a) a spectacle lens (b) a car seat belt (c) a car windscreen (d) the core of a wire
  20. 20.Which of these needs a transparent material? (a) a water tank (b) an umbrella cover (c) an oven glove (d) a spectacle lens
  21. 21.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  22. 22.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  23. 23.True or false: a car windscreen needs a flexible material. (a) False (b) True
  24. 24.Which of these needs a transparent material? (a) a plug pin (b) a car seat belt (c) a raincoat (d) a window pane
  25. 25.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) cotton cloth (d) aluminium
  26. 26.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.Which of these needs a flexible material? (a) a raincoat (b) a hair band (c) an umbrella cover (d) a plug pin
  28. 28.🧱 Which property matters most for a skipping rope? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  29. 29.True or false: an oven glove needs a heat insulator. (a) True (b) False
  30. 30.True or false: a roof sheet needs a flexible material. (a) False (b) True
  31. 31.True or false: a hair band needs a flexible material. (a) False (b) True
  32. 32.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  33. 33.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  34. 34.True or false: a car windscreen needs a transparent material. (a) True (b) False
  35. 35.True or false: a car seat belt needs a flexible material. (a) True (b) False
  36. 36.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  37. 37.True or false: a window pane needs a transparent material. (a) True (b) False
  38. 38.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  39. 39.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) iron (d) plastic
  40. 40.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) steel (d) iron

Answer key

  1. heat insulator
  2. a conductor
  3. a conductor
  4. a roof sheet
  5. copper
  6. waterproof
  7. a conductor
  8. transparent
  9. steel
  10. a switch contact
  11. a cooking pot handle
  12. plastic
  13. cotton cloth
  14. a car seat belt
  15. graphite
  16. waterproof
  17. plastic-coated cloth
  18. waterproof
  19. the core of a wire
  20. a spectacle lens
  21. True
  22. heat insulator
  23. False
  24. a window pane
  25. aluminium
  26. a conductor
  27. a hair band
  28. flexible
  29. True
  30. False
  31. True
  32. wood or plastic
  33. heat insulator
  34. True
  35. True
  36. True
  37. True
  38. transparent
  39. iron
  40. clay pottery

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