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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 601 · 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.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  2. 2.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  4. 4.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  5. 5.True or false: an oven glove needs a flexible material. (a) True (b) False
  6. 6.True or false: a boat hull needs a flexible material. (a) True (b) False
  7. 7.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.True or false: an oven glove needs an electrical conductor. (a) True (b) False
  9. 9.🧱 Which property matters most for a boat hull? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  10. 10.Which of these needs a flexible material? (a) a car seat belt (b) a water tank (c) an umbrella cover (d) an oven glove
  11. 11.🔍 Which is the odd one out? (a) iron (b) aluminium (c) clay pottery (d) copper
  12. 12.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.True or false: a raincoat needs a flexible material. (a) True (b) False
  14. 14.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  15. 15.Which of these needs a waterproof material? (a) a car seat belt (b) a yoga mat (c) an oven glove (d) an umbrella cover
  16. 16.Which of these needs a transparent material? (a) a window pane (b) an umbrella cover (c) a boat hull (d) a cooking pot handle
  17. 17.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.Which of these needs a heat insulator? (a) a tea flask lining (b) a water tank (c) a car seat belt (d) a switch contact
  19. 19.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) plastic (d) rubber
  21. 21.🧱 Which property matters most for the core of a wire? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  22. 22.🔍 Which is the odd one out? (a) steel (b) graphite (c) dry wood (d) brass
  23. 23.Which of these needs a transparent material? (a) a hair band (b) a roof sheet (c) an umbrella cover (d) a spectacle lens
  24. 24.Which of these needs an electrical conductor? (a) a skipping rope (b) a plug pin (c) a water tank (d) a spectacle lens
  25. 25.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
  26. 26.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  27. 27.🧱 Which property matters most for a roof sheet? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  28. 28.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) aluminium (d) iron
  29. 29.Which of these needs an electrical conductor? (a) a hair band (b) a skipping rope (c) the core of a wire (d) a tea flask lining
  30. 30.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  32. 32.True or false: an oven glove needs a heat insulator. (a) False (b) True
  33. 33.🔍 Which is the odd one out? (a) rubber (b) plastic (c) iron (d) clay pottery
  34. 34.Which of these needs a transparent material? (a) an umbrella cover (b) a switch contact (c) a magnifier lens (d) an oven glove
  35. 35.Which of these needs a flexible material? (a) a boat hull (b) a magnifier lens (c) a car windscreen (d) a skipping rope
  36. 36.True or false: a cooking pot handle needs a transparent material. (a) True (b) False
  37. 37.Which of these needs a waterproof material? (a) a car seat belt (b) the core of a wire (c) a raincoat (d) a plug pin
  38. 38.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.Which of these needs a heat insulator? (a) a skipping rope (b) a boat hull (c) an oven glove (d) an umbrella cover
  40. 40.True or false: a boat hull needs a heat insulator. (a) True (b) False

Answer key

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

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