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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 268 · 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 of these needs a waterproof material? (a) a car seat belt (b) a plug pin (c) a car windscreen (d) a boat hull
  2. 2.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.Which of these needs a waterproof material? (a) a spectacle lens (b) a skipping rope (c) a water tank (d) a plug pin
  5. 5.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  6. 6.🔍 Which is the odd one out? (a) rubber (b) plastic (c) aluminium (d) dry wood
  7. 7.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  9. 9.🔍 Which is the odd one out? (a) steel (b) rubber (c) dry wood (d) glass
  10. 10.🔍 Which is the odd one out? (a) steel (b) iron (c) plastic (d) brass
  11. 11.Which of these needs a waterproof material? (a) a skipping rope (b) a cooking pot handle (c) a raincoat (d) a magnifier lens
  12. 12.Which of these needs an electrical conductor? (a) a raincoat (b) a window pane (c) a yoga mat (d) the core of a wire
  13. 13.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) rubber (d) brass
  14. 14.🧱 Which property matters most for a window pane? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  15. 15.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.Which of these needs a waterproof material? (a) a skipping rope (b) an umbrella cover (c) a hair band (d) a tea flask lining
  17. 17.True or false: a water tank needs a waterproof material. (a) True (b) False
  18. 18.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🔍 Which is the odd one out? (a) copper (b) brass (c) rubber (d) graphite
  20. 20.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) copper (d) clay pottery
  21. 21.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  22. 22.🧱 Which property matters most for a raincoat? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  23. 23.🧱 Which material is best for a window pane? (a) steel (b) glass (c) brick (d) wood
  24. 24.True or false: a hair band needs a transparent material. (a) False (b) True
  25. 25.Which of these needs a heat insulator? (a) a yoga mat (b) a spectacle lens (c) a cooking pot handle (d) a car windscreen
  26. 26.Which of these needs a transparent material? (a) a roof sheet (b) a hair band (c) a plug pin (d) a window pane
  27. 27.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  29. 29.🔍 Which is the odd one out? (a) rubber (b) graphite (c) clay pottery (d) dry wood
  30. 30.True or false: a skipping rope needs a flexible material. (a) True (b) False
  31. 31.True or false: a car windscreen needs a waterproof material. (a) True (b) False
  32. 32.Which of these needs a heat insulator? (a) a car seat belt (b) an oven glove (c) an umbrella cover (d) a magnifier lens
  33. 33.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  34. 34.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  35. 35.Which of these needs an electrical conductor? (a) a hair band (b) a cooking pot handle (c) a switch contact (d) a raincoat
  36. 36.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  37. 37.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  38. 38.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.Which of these needs an electrical conductor? (a) a yoga mat (b) a plug pin (c) a cooking pot handle (d) a roof sheet

Answer key

  1. a boat hull
  2. an insulator
  3. a conductor
  4. a water tank
  5. copper
  6. aluminium
  7. an insulator
  8. True
  9. steel
  10. plastic
  11. a raincoat
  12. the core of a wire
  13. brass
  14. transparent
  15. a conductor
  16. an umbrella cover
  17. True
  18. a conductor
  19. rubber
  20. copper
  21. waterproof
  22. waterproof
  23. glass
  24. False
  25. a cooking pot handle
  26. a window pane
  27. a conductor
  28. wood or plastic
  29. graphite
  30. True
  31. False
  32. an oven glove
  33. transparent
  34. steel
  35. a switch contact
  36. True
  37. True
  38. a conductor
  39. an insulator
  40. a plug pin

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