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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 121 · 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.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  3. 3.True or false: a raincoat needs a heat insulator. (a) True (b) False
  4. 4.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  5. 5.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) rubber (d) dry wood
  7. 7.Which of these needs a waterproof material? (a) an umbrella cover (b) a magnifier lens (c) a car seat belt (d) an oven glove
  8. 8.Which of these needs a transparent material? (a) a car seat belt (b) a roof sheet (c) a spectacle lens (d) the core of a wire
  9. 9.🧱 Which property matters most for the core of a wire? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  10. 10.True or false: a cooking pot handle needs an electrical conductor. (a) True (b) False
  11. 11.True or false: a boat hull needs a transparent material. (a) False (b) True
  12. 12.True or false: a skipping rope needs a flexible material. (a) True (b) False
  13. 13.Which of these needs a transparent material? (a) a hair band (b) a water tank (c) a window pane (d) an oven glove
  14. 14.True or false: a car windscreen needs a flexible material. (a) True (b) False
  15. 15.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  16. 16.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.Which of these needs a flexible material? (a) a magnifier lens (b) a car seat belt (c) a car windscreen (d) a roof sheet
  18. 18.Which of these needs an electrical conductor? (a) a roof sheet (b) a plug pin (c) a tea flask lining (d) a water tank
  19. 19.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.True or false: a car windscreen needs a waterproof material. (a) True (b) False
  21. 21.Which of these needs a transparent material? (a) a hair band (b) a yoga mat (c) a car seat belt (d) a car windscreen
  22. 22.🧱 Which property matters most for a yoga mat? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  23. 23.🧱 Which property matters most for a hair band? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  24. 24.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) paper (d) cotton wool
  25. 25.Which of these needs a transparent material? (a) a magnifier lens (b) a roof sheet (c) a raincoat (d) a water tank
  26. 26.Which of these needs a waterproof material? (a) a yoga mat (b) the core of a wire (c) a tea flask lining (d) a raincoat
  27. 27.True or false: a raincoat needs a transparent material. (a) True (b) False
  28. 28.Which of these needs a heat insulator? (a) a boat hull (b) a skipping rope (c) the core of a wire (d) an oven glove
  29. 29.🧱 Which property matters most for a boat hull? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  30. 30.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) copper (d) aluminium
  31. 31.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  32. 32.Which of these needs a flexible material? (a) a window pane (b) a raincoat (c) the core of a wire (d) a yoga mat
  33. 33.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Which property matters most for a raincoat? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  35. 35.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  36. 36.🔍 Which is the odd one out? (a) graphite (b) copper (c) dry wood (d) brass
  37. 37.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  38. 38.True or false: a magnifier lens needs a heat insulator. (a) True (b) False
  39. 39.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) glass (d) aluminium
  40. 40.🔍 Which is the odd one out? (a) steel (b) rubber (c) graphite (d) aluminium

Answer key

  1. an insulator
  2. copper
  3. False
  4. transparent
  5. a conductor
  6. brass
  7. an umbrella cover
  8. a spectacle lens
  9. electrical conductor
  10. False
  11. False
  12. True
  13. a window pane
  14. False
  15. steel
  16. an insulator
  17. a car seat belt
  18. a plug pin
  19. a conductor
  20. False
  21. a car windscreen
  22. flexible
  23. flexible
  24. plastic-coated cloth
  25. a magnifier lens
  26. a raincoat
  27. False
  28. an oven glove
  29. waterproof
  30. wood or plastic
  31. heat insulator
  32. a yoga mat
  33. an insulator
  34. waterproof
  35. True
  36. dry wood
  37. flexible
  38. False
  39. aluminium
  40. rubber

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