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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 44 · 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) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  2. 2.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) rubber (d) iron
  3. 3.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.True or false: a skipping rope needs a transparent material. (a) False (b) True
  5. 5.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  6. 6.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  7. 7.Which of these needs a waterproof material? (a) a car seat belt (b) a spectacle lens (c) a raincoat (d) a yoga mat
  8. 8.🔍 Which is the odd one out? (a) copper (b) graphite (c) aluminium (d) dry wood
  9. 9.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.True or false: a roof sheet needs a flexible material. (a) True (b) False
  11. 11.True or false: a raincoat needs a flexible material. (a) True (b) False
  12. 12.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  13. 13.Which of these needs a transparent material? (a) a spectacle lens (b) an umbrella cover (c) a roof sheet (d) a car seat belt
  14. 14.True or false: a hair band needs a flexible material. (a) False (b) True
  15. 15.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  16. 16.🔍 Which is the odd one out? (a) copper (b) brass (c) graphite (d) clay pottery
  17. 17.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Which property matters most for a window pane? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  19. 19.🔍 Which is the odd one out? (a) copper (b) graphite (c) brass (d) rubber
  20. 20.True or false: a water tank needs a waterproof material. (a) False (b) True
  21. 21.🧱 Which property matters most for an oven glove? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  22. 22.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.True or false: a raincoat needs a waterproof material. (a) True (b) False
  24. 24.True or false: a boat hull needs a waterproof material. (a) True (b) False
  25. 25.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.Which of these needs a transparent material? (a) a switch contact (b) a window pane (c) a boat hull (d) a roof sheet
  27. 27.Which of these needs a transparent material? (a) a magnifier lens (b) an oven glove (c) a tea flask lining (d) a boat hull
  28. 28.Which of these needs an electrical conductor? (a) an umbrella cover (b) a raincoat (c) a roof sheet (d) the core of a wire
  29. 29.🔍 Which is the odd one out? (a) steel (b) glass (c) rubber (d) plastic
  30. 30.Which of these needs a waterproof material? (a) a skipping rope (b) a tea flask lining (c) a magnifier lens (d) a roof sheet
  31. 31.Which of these needs a flexible material? (a) an oven glove (b) a car seat belt (c) a raincoat (d) a roof sheet
  32. 32.Which of these needs a waterproof material? (a) the core of a wire (b) a window pane (c) an umbrella cover (d) a spectacle lens
  33. 33.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  34. 34.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.True or false: a skipping rope needs a flexible material. (a) False (b) True
  36. 36.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  37. 37.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.Which of these needs a waterproof material? (a) an oven glove (b) a car seat belt (c) a window pane (d) a water tank
  39. 39.True or false: an umbrella cover needs a transparent material. (a) True (b) False
  40. 40.Which of these needs a waterproof material? (a) an oven glove (b) a boat hull (c) a magnifier lens (d) a window pane

Answer key

  1. plastic-coated cloth
  2. iron
  3. a conductor
  4. False
  5. steel
  6. waterproof
  7. a raincoat
  8. dry wood
  9. an insulator
  10. False
  11. False
  12. transparent
  13. a spectacle lens
  14. True
  15. wood or plastic
  16. clay pottery
  17. an insulator
  18. transparent
  19. rubber
  20. True
  21. heat insulator
  22. an insulator
  23. True
  24. True
  25. an insulator
  26. a window pane
  27. a magnifier lens
  28. the core of a wire
  29. steel
  30. a roof sheet
  31. a car seat belt
  32. an umbrella cover
  33. electrical conductor
  34. an insulator
  35. True
  36. glass
  37. a conductor
  38. a water tank
  39. False
  40. a boat hull

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