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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 878 · 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) aluminium (c) brass (d) copper
  2. 2.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) copper (d) wood or plastic
  3. 3.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  5. 5.🔍 Which is the odd one out? (a) steel (b) clay pottery (c) aluminium (d) iron
  6. 6.Which of these needs a flexible material? (a) a car windscreen (b) a hair band (c) a water tank (d) a raincoat
  7. 7.Which of these needs a transparent material? (a) a plug pin (b) a boat hull (c) an umbrella cover (d) a spectacle lens
  8. 8.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
  9. 9.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  11. 11.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  12. 12.Which of these needs a waterproof material? (a) a hair band (b) a car seat belt (c) an umbrella cover (d) a skipping rope
  13. 13.🧱 Which property matters most for a plug pin? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  14. 14.True or false: a raincoat needs a heat insulator. (a) True (b) False
  15. 15.True or false: a hair band needs a flexible material. (a) True (b) False
  16. 16.🔍 Which is the odd one out? (a) copper (b) dry wood (c) iron (d) graphite
  17. 17.True or false: a hair band needs a waterproof material. (a) False (b) True
  18. 18.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Which material is best for a window pane? (a) brick (b) steel (c) glass (d) wood
  20. 20.Which of these needs a transparent material? (a) a hair band (b) a tea flask lining (c) a skipping rope (d) a magnifier lens
  21. 21.True or false: a boat hull needs a waterproof material. (a) True (b) False
  22. 22.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) cotton cloth (d) iron
  23. 23.Which of these needs a flexible material? (a) a yoga mat (b) a tea flask lining (c) a magnifier lens (d) a switch contact
  24. 24.True or false: a water tank needs a waterproof material. (a) True (b) False
  25. 25.Which of these needs a flexible material? (a) a boat hull (b) a magnifier lens (c) a cooking pot handle (d) a car seat belt
  26. 26.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  27. 27.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.True or false: a car windscreen needs a waterproof material. (a) False (b) True
  29. 29.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  30. 30.Which of these needs a waterproof material? (a) a plug pin (b) a window pane (c) a water tank (d) a switch contact
  31. 31.🔍 Which is the odd one out? (a) steel (b) graphite (c) cotton cloth (d) brass
  32. 32.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  33. 33.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  34. 34.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) rubber (d) plastic
  35. 35.Which of these needs a heat insulator? (a) the core of a wire (b) a boat hull (c) a cooking pot handle (d) a water tank
  36. 36.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🔍 Which is the odd one out? (a) graphite (b) iron (c) rubber (d) copper
  38. 38.Which of these needs an electrical conductor? (a) the core of a wire (b) a boat hull (c) a cooking pot handle (d) a roof sheet
  39. 39.🧱 Which property matters most for an oven glove? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  40. 40.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. plastic
  2. wood or plastic
  3. a conductor
  4. copper
  5. clay pottery
  6. a hair band
  7. a spectacle lens
  8. plastic-coated cloth
  9. a conductor
  10. steel
  11. True
  12. an umbrella cover
  13. electrical conductor
  14. False
  15. True
  16. dry wood
  17. False
  18. an insulator
  19. glass
  20. a magnifier lens
  21. True
  22. iron
  23. a yoga mat
  24. True
  25. a car seat belt
  26. transparent
  27. a conductor
  28. False
  29. waterproof
  30. a water tank
  31. cotton cloth
  32. flexible
  33. heat insulator
  34. copper
  35. a cooking pot handle
  36. a conductor
  37. rubber
  38. the core of a wire
  39. heat insulator
  40. a conductor

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