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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 645 · 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 plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.Which of these needs a transparent material? (a) a yoga mat (b) the core of a wire (c) a window pane (d) a switch contact
  3. 3.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.Which of these needs a flexible material? (a) a cooking pot handle (b) the core of a wire (c) an oven glove (d) a yoga mat
  5. 5.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
  6. 6.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  7. 7.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  8. 8.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🔍 Which is the odd one out? (a) copper (b) brass (c) glass (d) graphite
  10. 10.🧱 Which property matters most for a magnifier lens? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  11. 11.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) plastic (d) rubber
  13. 13.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) brass (d) iron
  14. 14.🧱 Which property matters most for an oven glove? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  15. 15.🧱 Which property matters most for a yoga mat? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  16. 16.🧱 Which property matters most for a raincoat? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  17. 17.🧱 Which property matters most for a hair band? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  18. 18.🧱 Which property matters most for a car windscreen? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  19. 19.🔍 Which is the odd one out? (a) rubber (b) graphite (c) copper (d) brass
  20. 20.🔍 Which is the odd one out? (a) aluminium (b) brass (c) clay pottery (d) graphite
  21. 21.🧱 Which property matters most for a skipping rope? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  22. 22.🔍 Which is the odd one out? (a) iron (b) rubber (c) clay pottery (d) dry wood
  23. 23.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  24. 24.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Which property matters most for a roof sheet? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  26. 26.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) cotton cloth (d) graphite
  28. 28.Which of these needs a transparent material? (a) a skipping rope (b) a roof sheet (c) an umbrella cover (d) a car windscreen
  29. 29.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  30. 30.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) brass (d) clay pottery
  31. 31.True or false: an oven glove needs a flexible material. (a) True (b) False
  32. 32.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.Which of these needs a waterproof material? (a) a water tank (b) an oven glove (c) a car windscreen (d) a car seat belt
  34. 34.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  35. 35.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  36. 36.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  37. 37.Which of these needs a flexible material? (a) a raincoat (b) an oven glove (c) an umbrella cover (d) a car seat belt
  38. 38.Which of these needs a heat insulator? (a) a raincoat (b) a roof sheet (c) a cooking pot handle (d) a hair band
  39. 39.True or false: a raincoat needs a flexible material. (a) True (b) False
  40. 40.🔍 Which is the odd one out? (a) iron (b) plastic (c) brass (d) steel

Answer key

  1. an insulator
  2. a window pane
  3. a conductor
  4. a yoga mat
  5. plastic-coated cloth
  6. copper
  7. steel
  8. a conductor
  9. glass
  10. transparent
  11. a conductor
  12. aluminium
  13. cotton cloth
  14. heat insulator
  15. flexible
  16. waterproof
  17. flexible
  18. transparent
  19. rubber
  20. clay pottery
  21. flexible
  22. iron
  23. wood or plastic
  24. an insulator
  25. waterproof
  26. an insulator
  27. graphite
  28. a car windscreen
  29. waterproof
  30. brass
  31. False
  32. a conductor
  33. a water tank
  34. heat insulator
  35. electrical conductor
  36. glass
  37. a car seat belt
  38. a cooking pot handle
  39. False
  40. plastic

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