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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 943 · 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 hair band needs a transparent material. (a) True (b) False
  2. 2.🧱 Which material is best for a window pane? (a) brick (b) glass (c) steel (d) wood
  3. 3.Which of these needs a transparent material? (a) an oven glove (b) a raincoat (c) a magnifier lens (d) a water tank
  4. 4.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🔍 Which is the odd one out? (a) glass (b) graphite (c) brass (d) iron
  6. 6.🔍 Which is the odd one out? (a) rubber (b) plastic (c) dry wood (d) graphite
  7. 7.Which of these needs a waterproof material? (a) a car windscreen (b) a tea flask lining (c) an umbrella cover (d) a spectacle lens
  8. 8.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  9. 9.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  10. 10.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  11. 11.Which of these needs an electrical conductor? (a) a car seat belt (b) a switch contact (c) an oven glove (d) a raincoat
  12. 12.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.Which of these needs a waterproof material? (a) a spectacle lens (b) the core of a wire (c) a switch contact (d) a water tank
  15. 15.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  16. 16.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  17. 17.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  18. 18.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) aluminium (d) rubber
  20. 20.Which of these needs a flexible material? (a) a switch contact (b) a raincoat (c) a spectacle lens (d) a car seat belt
  21. 21.🔍 Which is the odd one out? (a) copper (b) brass (c) plastic (d) aluminium
  22. 22.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  23. 23.🧱 Which property matters most for a water tank? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  24. 24.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
  25. 25.True or false: a water tank needs a flexible material. (a) True (b) False
  26. 26.🔍 Which is the odd one out? (a) graphite (b) iron (c) clay pottery (d) copper
  27. 27.True or false: a car windscreen needs an electrical conductor. (a) False (b) True
  28. 28.Which of these needs a flexible material? (a) a raincoat (b) an umbrella cover (c) a skipping rope (d) a boat hull
  29. 29.Which of these needs a heat insulator? (a) a car seat belt (b) a switch contact (c) an oven glove (d) a magnifier lens
  30. 30.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  31. 31.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  32. 32.True or false: a switch contact needs a transparent material. (a) True (b) False
  33. 33.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🔍 Which is the odd one out? (a) copper (b) aluminium (c) steel (d) rubber
  36. 36.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  37. 37.🧱 Which property matters most for a switch contact? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  38. 38.True or false: a roof sheet needs a heat insulator. (a) False (b) True
  39. 39.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

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

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