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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 822 · 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 property matters most for a switch contact? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  2. 2.🔍 Which is the odd one out? (a) plastic (b) iron (c) aluminium (d) graphite
  3. 3.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  4. 4.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) glass (d) plastic
  5. 5.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.Which of these needs a waterproof material? (a) a hair band (b) a car windscreen (c) an oven glove (d) a water tank
  7. 7.Which of these needs a flexible material? (a) a window pane (b) a hair band (c) the core of a wire (d) a cooking pot handle
  8. 8.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) glass (d) rubber
  9. 9.🧱 Which property matters most for the core of a wire? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  10. 10.🧱 Which property matters most for a car seat belt? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  11. 11.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) copper (d) plastic
  12. 12.🔍 Which is the odd one out? (a) steel (b) brass (c) aluminium (d) clay pottery
  13. 13.Which of these needs an electrical conductor? (a) a water tank (b) a plug pin (c) a skipping rope (d) a cooking pot handle
  14. 14.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  16. 16.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  17. 17.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  18. 18.Which of these needs a waterproof material? (a) a plug pin (b) a skipping rope (c) a roof sheet (d) a switch contact
  19. 19.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) steel (d) glass
  20. 20.True or false: a raincoat needs a transparent material. (a) True (b) False
  21. 21.True or false: a cooking pot handle needs a waterproof material. (a) False (b) True
  22. 22.🔍 Which is the odd one out? (a) iron (b) graphite (c) aluminium (d) cotton cloth
  23. 23.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  24. 24.Which of these needs a heat insulator? (a) a car seat belt (b) a car windscreen (c) a switch contact (d) a tea flask lining
  25. 25.🧱 Which property matters most for a raincoat? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  26. 26.Which of these needs a heat insulator? (a) a plug pin (b) a magnifier lens (c) an oven glove (d) a roof sheet
  27. 27.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.True or false: a switch contact needs a waterproof material. (a) True (b) False
  29. 29.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) aluminium (d) plastic
  30. 30.Which of these needs a flexible material? (a) a car seat belt (b) an oven glove (c) the core of a wire (d) a window pane
  31. 31.🧱 Which property matters most for a plug pin? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  32. 32.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  34. 34.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.True or false: an umbrella cover needs a transparent material. (a) True (b) False
  36. 36.True or false: a skipping rope needs a flexible material. (a) True (b) False
  37. 37.True or false: an oven glove needs a heat insulator. (a) False (b) True
  38. 38.Which of these needs a waterproof material? (a) a cooking pot handle (b) a window pane (c) a raincoat (d) a switch contact
  39. 39.True or false: a hair band needs a flexible material. (a) False (b) True
  40. 40.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper

Answer key

  1. electrical conductor
  2. plastic
  3. glass
  4. iron
  5. a conductor
  6. a water tank
  7. a hair band
  8. copper
  9. electrical conductor
  10. flexible
  11. copper
  12. clay pottery
  13. a plug pin
  14. an insulator
  15. False
  16. heat insulator
  17. True
  18. a roof sheet
  19. steel
  20. False
  21. False
  22. cotton cloth
  23. True
  24. a tea flask lining
  25. waterproof
  26. an oven glove
  27. an insulator
  28. False
  29. aluminium
  30. a car seat belt
  31. electrical conductor
  32. a conductor
  33. False
  34. an insulator
  35. False
  36. True
  37. True
  38. a raincoat
  39. True
  40. plastic-coated cloth

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