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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 413 · 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 is the odd one out? (a) plastic (b) clay pottery (c) aluminium (d) glass
  2. 2.🧱 Which property matters most for a switch contact? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  3. 3.True or false: a car seat belt needs a waterproof material. (a) False (b) True
  4. 4.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  5. 5.🧱 Which property matters most for a skipping rope? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  6. 6.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.Which of these needs a transparent material? (a) a hair band (b) the core of a wire (c) a boat hull (d) a magnifier lens
  8. 8.True or false: a cooking pot handle needs a waterproof material. (a) True (b) False
  9. 9.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  10. 10.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) rubber (d) iron
  11. 11.Which of these needs a transparent material? (a) a boat hull (b) the core of a wire (c) a spectacle lens (d) a switch contact
  12. 12.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which material is best for a window pane? (a) brick (b) glass (c) wood (d) steel
  14. 14.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) steel (d) copper
  15. 15.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🔍 Which is the odd one out? (a) rubber (b) copper (c) dry wood (d) glass
  17. 17.🔍 Which is the odd one out? (a) iron (b) aluminium (c) graphite (d) glass
  18. 18.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  19. 19.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a plug pin (c) a yoga mat (d) a tea flask lining
  20. 20.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  22. 22.🔍 Which is the odd one out? (a) rubber (b) brass (c) iron (d) copper
  23. 23.Which of these needs a waterproof material? (a) a water tank (b) a switch contact (c) an oven glove (d) a yoga mat
  24. 24.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) graphite (b) steel (c) plastic (d) iron
  26. 26.Which of these needs an electrical conductor? (a) a switch contact (b) a yoga mat (c) a car windscreen (d) a spectacle lens
  27. 27.Which of these needs a flexible material? (a) a tea flask lining (b) a roof sheet (c) an umbrella cover (d) a skipping rope
  28. 28.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  29. 29.True or false: a roof sheet needs a transparent material. (a) False (b) True
  30. 30.Which of these needs a flexible material? (a) a hair band (b) an oven glove (c) a tea flask lining (d) a car windscreen
  31. 31.🧱 Which property matters most for a water tank? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  32. 32.True or false: the core of a wire needs a transparent material. (a) False (b) True
  33. 33.True or false: a boat hull needs a waterproof material. (a) True (b) False
  34. 34.🧱 Which property matters most for a boat hull? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  35. 35.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  36. 36.True or false: a water tank needs a transparent material. (a) True (b) False
  37. 37.True or false: a raincoat needs a heat insulator. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) iron (d) aluminium
  39. 39.🧱 Which property matters most for an oven glove? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  40. 40.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber

Answer key

  1. aluminium
  2. electrical conductor
  3. False
  4. False
  5. flexible
  6. a conductor
  7. a magnifier lens
  8. False
  9. False
  10. iron
  11. a spectacle lens
  12. a conductor
  13. glass
  14. clay pottery
  15. a conductor
  16. copper
  17. glass
  18. plastic-coated cloth
  19. a plug pin
  20. an insulator
  21. wood or plastic
  22. rubber
  23. a water tank
  24. True
  25. plastic
  26. a switch contact
  27. a skipping rope
  28. transparent
  29. False
  30. a hair band
  31. waterproof
  32. False
  33. True
  34. waterproof
  35. True
  36. False
  37. False
  38. dry wood
  39. heat insulator
  40. steel

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