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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 199 · 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) an umbrella cover (b) a car seat belt (c) a car windscreen (d) a spectacle lens
  2. 2.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  3. 3.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  4. 4.🔍 Which is the odd one out? (a) brass (b) graphite (c) clay pottery (d) copper
  5. 5.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Which property matters most for a roof sheet? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  8. 8.True or false: a water tank needs a heat insulator. (a) True (b) False
  9. 9.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  10. 10.🧱 Which property matters most for the core of a wire? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  11. 11.Which of these needs an electrical conductor? (a) the core of a wire (b) an umbrella cover (c) a window pane (d) a car seat belt
  12. 12.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  13. 13.Which of these needs a waterproof material? (a) a hair band (b) a skipping rope (c) a roof sheet (d) a window pane
  14. 14.True or false: a car seat belt needs a flexible material. (a) True (b) False
  15. 15.🔍 Which is the odd one out? (a) copper (b) graphite (c) steel (d) glass
  16. 16.Which of these needs an electrical conductor? (a) a boat hull (b) a roof sheet (c) a car windscreen (d) a switch contact
  17. 17.🧱 Which property matters most for a switch contact? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  18. 18.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Which property matters most for a skipping rope? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  20. 20.True or false: a spectacle lens needs an electrical conductor. (a) True (b) False
  21. 21.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  22. 22.🧱 Which property matters most for a water tank? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  23. 23.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.True or false: a car windscreen needs a transparent material. (a) False (b) True
  25. 25.Which of these needs a flexible material? (a) a water tank (b) a raincoat (c) a window pane (d) a car seat belt
  26. 26.🧱 Which property matters most for a boat hull? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  27. 27.Which of these needs a flexible material? (a) a switch contact (b) a tea flask lining (c) a magnifier lens (d) a skipping rope
  28. 28.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  29. 29.Which of these needs a transparent material? (a) a raincoat (b) a window pane (c) a skipping rope (d) a water tank
  30. 30.Which of these needs a heat insulator? (a) a tea flask lining (b) a skipping rope (c) an umbrella cover (d) a plug pin
  31. 31.True or false: the core of a wire needs a flexible material. (a) True (b) False
  32. 32.True or false: a yoga mat needs a flexible material. (a) True (b) False
  33. 33.Which of these needs a transparent material? (a) a raincoat (b) a cooking pot handle (c) a switch contact (d) a magnifier lens
  34. 34.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  35. 35.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) graphite (b) rubber (c) aluminium (d) brass
  37. 37.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) copper (d) aluminium
  38. 38.Which of these needs a heat insulator? (a) an oven glove (b) a boat hull (c) a hair band (d) a raincoat
  39. 39.Which of these needs a transparent material? (a) a switch contact (b) a plug pin (c) a car windscreen (d) a yoga mat
  40. 40.🧱 Which material is best for a window pane? (a) wood (b) glass (c) brick (d) steel

Answer key

  1. an umbrella cover
  2. plastic-coated cloth
  3. waterproof
  4. clay pottery
  5. a conductor
  6. an insulator
  7. waterproof
  8. False
  9. copper
  10. electrical conductor
  11. the core of a wire
  12. waterproof
  13. a roof sheet
  14. True
  15. glass
  16. a switch contact
  17. electrical conductor
  18. an insulator
  19. flexible
  20. False
  21. steel
  22. waterproof
  23. a conductor
  24. True
  25. a car seat belt
  26. waterproof
  27. a skipping rope
  28. False
  29. a window pane
  30. a tea flask lining
  31. False
  32. True
  33. a magnifier lens
  34. True
  35. True
  36. rubber
  37. wood or plastic
  38. an oven glove
  39. a car windscreen
  40. glass

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