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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 110 · 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: an oven glove needs an electrical conductor. (a) False (b) True
  2. 2.Which of these needs a transparent material? (a) a roof sheet (b) a car windscreen (c) a raincoat (d) a skipping rope
  3. 3.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) dry wood (d) brass
  5. 5.True or false: an umbrella cover needs a heat insulator. (a) True (b) False
  6. 6.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  8. 8.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  9. 9.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  10. 10.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  11. 11.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  12. 12.🧱 Which property matters most for a plug pin? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  13. 13.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.True or false: an oven glove needs a waterproof material. (a) False (b) True
  15. 15.🔍 Which is the odd one out? (a) brass (b) clay pottery (c) copper (d) steel
  16. 16.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  17. 17.Which of these needs a heat insulator? (a) a spectacle lens (b) a tea flask lining (c) a roof sheet (d) a water tank
  18. 18.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  19. 19.True or false: a skipping rope needs a flexible material. (a) False (b) True
  20. 20.🧱 Which property matters most for a window pane? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  21. 21.Which of these needs a flexible material? (a) a window pane (b) a cooking pot handle (c) a magnifier lens (d) a yoga mat
  22. 22.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  23. 23.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  24. 24.True or false: a hair band needs a heat insulator. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) plastic (b) steel (c) dry wood (d) clay pottery
  26. 26.Which of these needs a waterproof material? (a) an oven glove (b) a raincoat (c) a car seat belt (d) a hair band
  27. 27.🧱 Which property matters most for a skipping rope? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  28. 28.🔍 Which is the odd one out? (a) aluminium (b) steel (c) dry wood (d) graphite
  29. 29.Which of these needs a waterproof material? (a) the core of a wire (b) a boat hull (c) a yoga mat (d) an oven glove
  30. 30.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  31. 31.Which of these needs a transparent material? (a) a water tank (b) a plug pin (c) a magnifier lens (d) a cooking pot handle
  32. 32.🧱 Which property matters most for a hair band? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  33. 33.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  34. 34.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a water tank (c) a switch contact (d) a window pane
  35. 35.Which of these needs a flexible material? (a) a switch contact (b) a spectacle lens (c) a window pane (d) a hair band
  36. 36.Which of these needs a flexible material? (a) a car windscreen (b) a spectacle lens (c) a car seat belt (d) an oven glove
  37. 37.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  38. 38.True or false: a car windscreen needs an electrical conductor. (a) True (b) False
  39. 39.True or false: a roof sheet needs a heat insulator. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) glass (d) copper

Answer key

  1. False
  2. a car windscreen
  3. an insulator
  4. brass
  5. False
  6. an insulator
  7. False
  8. waterproof
  9. True
  10. transparent
  11. steel
  12. electrical conductor
  13. a conductor
  14. False
  15. clay pottery
  16. plastic-coated cloth
  17. a tea flask lining
  18. True
  19. True
  20. transparent
  21. a yoga mat
  22. copper
  23. heat insulator
  24. False
  25. steel
  26. a raincoat
  27. flexible
  28. dry wood
  29. a boat hull
  30. waterproof
  31. a magnifier lens
  32. flexible
  33. heat insulator
  34. a switch contact
  35. a hair band
  36. a car seat belt
  37. wood or plastic
  38. False
  39. False
  40. copper

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