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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 917 · 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 magnifier lens needs a transparent material. (a) True (b) False
  2. 2.True or false: a car seat belt needs a heat insulator. (a) False (b) True
  3. 3.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) steel (d) rubber
  4. 4.True or false: a switch contact needs a heat insulator. (a) False (b) True
  5. 5.Which of these needs a waterproof material? (a) a skipping rope (b) a cooking pot handle (c) a yoga mat (d) a raincoat
  6. 6.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  7. 7.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  8. 8.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  10. 10.True or false: a yoga mat needs a flexible material. (a) True (b) False
  11. 11.True or false: a water tank needs a heat insulator. (a) False (b) True
  12. 12.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) graphite (d) glass
  13. 13.🔍 Which is the odd one out? (a) clay pottery (b) brass (c) glass (d) rubber
  14. 14.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  15. 15.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
  16. 16.Which of these needs a transparent material? (a) the core of a wire (b) a magnifier lens (c) a car seat belt (d) a water tank
  17. 17.Which of these needs a flexible material? (a) a spectacle lens (b) an umbrella cover (c) a roof sheet (d) a skipping rope
  18. 18.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) wood or plastic (d) aluminium
  19. 19.🧱 Which property matters most for an umbrella cover? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  20. 20.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.True or false: a car windscreen needs a waterproof material. (a) True (b) False
  22. 22.🧱 Which property matters most for a switch contact? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  23. 23.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  25. 25.🧱 Which property matters most for a boat hull? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  26. 26.🔍 Which is the odd one out? (a) rubber (b) brass (c) copper (d) aluminium
  27. 27.🔍 Which is the odd one out? (a) copper (b) iron (c) brass (d) dry wood
  28. 28.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  29. 29.True or false: a spectacle lens needs a heat insulator. (a) True (b) False
  30. 30.🧱 Which property matters most for a window pane? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  31. 31.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  32. 32.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  33. 33.Which of these needs a heat insulator? (a) an oven glove (b) a spectacle lens (c) a hair band (d) an umbrella cover
  34. 34.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  35. 35.Which of these needs a flexible material? (a) the core of a wire (b) a switch contact (c) a hair band (d) a magnifier lens
  36. 36.🧱 Which property matters most for a car windscreen? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  37. 37.Which of these needs a transparent material? (a) an umbrella cover (b) a skipping rope (c) a cooking pot handle (d) a car windscreen
  38. 38.🔍 Which is the odd one out? (a) iron (b) glass (c) cotton cloth (d) clay pottery
  39. 39.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🔍 Which is the odd one out? (a) graphite (b) steel (c) copper (d) plastic

Answer key

  1. True
  2. False
  3. steel
  4. False
  5. a raincoat
  6. False
  7. heat insulator
  8. an insulator
  9. heat insulator
  10. True
  11. False
  12. graphite
  13. brass
  14. plastic-coated cloth
  15. steel
  16. a magnifier lens
  17. a skipping rope
  18. wood or plastic
  19. waterproof
  20. a conductor
  21. False
  22. electrical conductor
  23. an insulator
  24. False
  25. waterproof
  26. rubber
  27. dry wood
  28. True
  29. False
  30. transparent
  31. flexible
  32. copper
  33. an oven glove
  34. False
  35. a hair band
  36. transparent
  37. a car windscreen
  38. iron
  39. a conductor
  40. plastic

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