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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 417 · 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 of these needs a transparent material? (a) a cooking pot handle (b) an umbrella cover (c) an oven glove (d) a car windscreen
  2. 2.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  3. 3.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.True or false: a switch contact needs a heat insulator. (a) True (b) False
  6. 6.Which of these needs a heat insulator? (a) a water tank (b) an oven glove (c) a magnifier lens (d) a plug pin
  7. 7.🧱 Which property matters most for a boat hull? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  8. 8.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  9. 9.Which of these needs a heat insulator? (a) a water tank (b) a hair band (c) a tea flask lining (d) a spectacle lens
  10. 10.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.True or false: a water tank needs a waterproof material. (a) True (b) False
  12. 12.🔍 Which is the odd one out? (a) steel (b) aluminium (c) brass (d) plastic
  13. 13.🧱 Which material is best for a window pane? (a) glass (b) steel (c) wood (d) brick
  14. 14.🔍 Which is the odd one out? (a) brass (b) clay pottery (c) rubber (d) cotton cloth
  15. 15.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  16. 16.Which of these needs an electrical conductor? (a) a raincoat (b) a cooking pot handle (c) the core of a wire (d) a skipping rope
  17. 17.🧱 Which property matters most for an umbrella cover? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  18. 18.True or false: an oven glove needs an electrical conductor. (a) False (b) True
  19. 19.True or false: a skipping rope needs an electrical conductor. (a) False (b) True
  20. 20.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  22. 22.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) plastic (d) rubber
  23. 23.True or false: a hair band needs a waterproof material. (a) True (b) False
  24. 24.🧱 Which property matters most for a raincoat? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  25. 25.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  26. 26.True or false: a window pane needs a flexible material. (a) True (b) False
  27. 27.🧱 Which property matters most for a yoga mat? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  28. 28.🧱 Which property matters most for an oven glove? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  29. 29.🔍 Which is the odd one out? (a) aluminium (b) copper (c) clay pottery (d) iron
  30. 30.True or false: a magnifier lens needs a heat insulator. (a) False (b) True
  31. 31.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  32. 32.Which of these needs an electrical conductor? (a) an umbrella cover (b) a switch contact (c) a water tank (d) a skipping rope
  33. 33.True or false: a water tank needs a flexible material. (a) True (b) False
  34. 34.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  35. 35.🧱 Which property matters most for a roof sheet? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  36. 36.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🧱 Which property matters most for a car windscreen? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  38. 38.Which of these needs a waterproof material? (a) an oven glove (b) a yoga mat (c) a raincoat (d) a cooking pot handle
  39. 39.Which of these needs a heat insulator? (a) a car windscreen (b) a spectacle lens (c) a cooking pot handle (d) a hair band
  40. 40.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) wood (d) rubber

Answer key

  1. a car windscreen
  2. True
  3. an insulator
  4. a conductor
  5. False
  6. an oven glove
  7. waterproof
  8. electrical conductor
  9. a tea flask lining
  10. an insulator
  11. True
  12. plastic
  13. glass
  14. brass
  15. plastic-coated cloth
  16. the core of a wire
  17. waterproof
  18. False
  19. False
  20. a conductor
  21. False
  22. steel
  23. False
  24. waterproof
  25. wood or plastic
  26. False
  27. flexible
  28. heat insulator
  29. clay pottery
  30. False
  31. heat insulator
  32. a switch contact
  33. False
  34. flexible
  35. waterproof
  36. a conductor
  37. transparent
  38. a raincoat
  39. a cooking pot handle
  40. copper

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