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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 460 · 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 flexible material. (a) True (b) False
  2. 2.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  3. 3.🔍 Which is the odd one out? (a) graphite (b) iron (c) copper (d) glass
  4. 4.Which of these needs a waterproof material? (a) the core of a wire (b) a plug pin (c) a car windscreen (d) a water tank
  5. 5.Which of these needs an electrical conductor? (a) a yoga mat (b) an oven glove (c) a switch contact (d) a skipping rope
  6. 6.True or false: a car seat belt needs a transparent material. (a) True (b) False
  7. 7.🔍 Which is the odd one out? (a) rubber (b) graphite (c) aluminium (d) iron
  8. 8.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Which property matters most for a plug pin? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  10. 10.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  11. 11.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) clay pottery (d) rubber
  12. 12.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.Which of these needs an electrical conductor? (a) a roof sheet (b) a plug pin (c) a cooking pot handle (d) a skipping rope
  14. 14.True or false: a water tank needs a waterproof material. (a) True (b) False
  15. 15.🧱 Which property matters most for a car windscreen? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  16. 16.Which of these needs a flexible material? (a) a roof sheet (b) a water tank (c) a skipping rope (d) an oven glove
  17. 17.Which of these needs a heat insulator? (a) a tea flask lining (b) a window pane (c) a raincoat (d) an umbrella cover
  18. 18.🔍 Which is the odd one out? (a) steel (b) dry wood (c) copper (d) iron
  19. 19.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  20. 20.Which of these needs a heat insulator? (a) a cooking pot handle (b) a car seat belt (c) the core of a wire (d) a plug pin
  21. 21.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) rubber (d) aluminium
  22. 22.True or false: an oven glove needs a transparent material. (a) True (b) False
  23. 23.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) glass (d) rubber
  24. 24.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  25. 25.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  26. 26.Which of these needs a waterproof material? (a) a hair band (b) a plug pin (c) a raincoat (d) a car windscreen
  27. 27.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.Which of these needs a transparent material? (a) a window pane (b) a cooking pot handle (c) a yoga mat (d) a car seat belt
  29. 29.True or false: a raincoat needs a heat insulator. (a) False (b) True
  30. 30.🧱 Which property matters most for a water tank? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  31. 31.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  32. 32.🧱 Which property matters most for the core of a wire? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  33. 33.🔍 Which is the odd one out? (a) copper (b) rubber (c) clay pottery (d) cotton cloth
  34. 34.True or false: a yoga mat needs a flexible material. (a) True (b) False
  35. 35.🧱 Which property matters most for a boat hull? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  36. 36.Which of these needs a waterproof material? (a) a boat hull (b) a tea flask lining (c) a yoga mat (d) a car seat belt
  37. 37.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  39. 39.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) copper (d) plastic

Answer key

  1. False
  2. heat insulator
  3. glass
  4. a water tank
  5. a switch contact
  6. False
  7. rubber
  8. a conductor
  9. electrical conductor
  10. True
  11. graphite
  12. an insulator
  13. a plug pin
  14. True
  15. transparent
  16. a skipping rope
  17. a tea flask lining
  18. dry wood
  19. waterproof
  20. a cooking pot handle
  21. aluminium
  22. False
  23. copper
  24. True
  25. steel
  26. a raincoat
  27. an insulator
  28. a window pane
  29. False
  30. waterproof
  31. plastic-coated cloth
  32. electrical conductor
  33. copper
  34. True
  35. waterproof
  36. a boat hull
  37. a conductor
  38. False
  39. an insulator
  40. plastic

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