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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 860 · 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) cardboard (c) plastic-coated cloth (d) paper
  2. 2.True or false: a yoga mat needs a heat insulator. (a) True (b) False
  3. 3.True or false: a skipping rope needs a flexible material. (a) False (b) True
  4. 4.True or false: a water tank needs an electrical conductor. (a) True (b) False
  5. 5.Which of these needs a transparent material? (a) a roof sheet (b) a spectacle lens (c) a yoga mat (d) a car seat belt
  6. 6.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  7. 7.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) rubber (d) iron
  9. 9.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) copper (d) iron
  10. 10.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  11. 11.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  13. 13.Which of these needs a flexible material? (a) a car windscreen (b) a hair band (c) the core of a wire (d) a spectacle lens
  14. 14.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  15. 15.🔍 Which is the odd one out? (a) graphite (b) steel (c) rubber (d) copper
  16. 16.Which of these needs a heat insulator? (a) a window pane (b) an oven glove (c) the core of a wire (d) a skipping rope
  17. 17.Which of these needs a flexible material? (a) the core of a wire (b) a skipping rope (c) a cooking pot handle (d) an oven glove
  18. 18.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  20. 20.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  21. 21.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  22. 22.Which of these needs a waterproof material? (a) a tea flask lining (b) a roof sheet (c) a skipping rope (d) a car windscreen
  23. 23.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🔍 Which is the odd one out? (a) iron (b) plastic (c) aluminium (d) steel
  25. 25.Which of these needs a flexible material? (a) a cooking pot handle (b) a window pane (c) a car seat belt (d) a plug pin
  26. 26.Which of these needs a transparent material? (a) a raincoat (b) a hair band (c) the core of a wire (d) a magnifier lens
  27. 27.🔍 Which is the odd one out? (a) aluminium (b) steel (c) graphite (d) glass
  28. 28.🧱 Which property matters most for a boat hull? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  29. 29.🧱 Which property matters most for an oven glove? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  30. 30.True or false: an umbrella cover needs a transparent material. (a) True (b) False
  31. 31.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.Which of these needs a waterproof material? (a) a tea flask lining (b) a switch contact (c) a raincoat (d) a skipping rope
  33. 33.🔍 Which is the odd one out? (a) dry wood (b) iron (c) graphite (d) aluminium
  34. 34.Which of these needs a waterproof material? (a) a hair band (b) a plug pin (c) a car seat belt (d) an umbrella cover
  35. 35.True or false: a plug pin needs a waterproof material. (a) False (b) True
  36. 36.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  37. 37.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  38. 38.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.Which of these needs a transparent material? (a) a window pane (b) a cooking pot handle (c) the core of a wire (d) a raincoat
  40. 40.Which of these needs a heat insulator? (a) a cooking pot handle (b) a switch contact (c) a roof sheet (d) a car windscreen

Answer key

  1. plastic-coated cloth
  2. False
  3. True
  4. False
  5. a spectacle lens
  6. copper
  7. a conductor
  8. iron
  9. wood or plastic
  10. True
  11. a conductor
  12. glass
  13. a hair band
  14. flexible
  15. rubber
  16. an oven glove
  17. a skipping rope
  18. an insulator
  19. flexible
  20. electrical conductor
  21. waterproof
  22. a roof sheet
  23. a conductor
  24. plastic
  25. a car seat belt
  26. a magnifier lens
  27. glass
  28. waterproof
  29. heat insulator
  30. False
  31. an insulator
  32. a raincoat
  33. dry wood
  34. an umbrella cover
  35. False
  36. flexible
  37. waterproof
  38. a conductor
  39. a window pane
  40. a cooking pot handle

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