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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 683 · 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 property matters most for a boat hull? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  2. 2.🔍 Which is the odd one out? (a) copper (b) glass (c) graphite (d) steel
  3. 3.Which of these needs a heat insulator? (a) a switch contact (b) a hair band (c) a skipping rope (d) an oven glove
  4. 4.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  6. 6.Which of these needs a heat insulator? (a) an umbrella cover (b) a roof sheet (c) a cooking pot handle (d) a water tank
  7. 7.🧱 Which property matters most for a roof sheet? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  8. 8.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Which property matters most for a car seat belt? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  10. 10.Which of these needs a flexible material? (a) an umbrella cover (b) a plug pin (c) a skipping rope (d) the core of a wire
  11. 11.True or false: an umbrella cover needs a heat insulator. (a) False (b) True
  12. 12.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  14. 14.Which of these needs a flexible material? (a) a water tank (b) a car seat belt (c) a window pane (d) a tea flask lining
  15. 15.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  16. 16.True or false: a raincoat needs a heat insulator. (a) True (b) False
  17. 17.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  18. 18.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) cotton cloth (d) iron
  19. 19.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  20. 20.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) glass (d) plastic
  21. 21.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.Which of these needs a flexible material? (a) the core of a wire (b) a yoga mat (c) a switch contact (d) an oven glove
  23. 23.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  24. 24.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) aluminium (d) cotton cloth
  25. 25.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) brass (d) plastic
  26. 26.Which of these needs a flexible material? (a) a spectacle lens (b) a hair band (c) a magnifier lens (d) a raincoat
  27. 27.Which of these needs a heat insulator? (a) a hair band (b) a tea flask lining (c) a car seat belt (d) a plug pin
  28. 28.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  29. 29.True or false: an oven glove needs a heat insulator. (a) True (b) False
  30. 30.🧱 Which property matters most for a yoga mat? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  31. 31.True or false: a cooking pot handle needs a transparent material. (a) True (b) False
  32. 32.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  33. 33.🧱 Which property matters most for a plug pin? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  34. 34.🔍 Which is the odd one out? (a) brass (b) steel (c) cotton cloth (d) copper
  35. 35.🧱 Which property matters most for a raincoat? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  36. 36.Which of these needs a transparent material? (a) a raincoat (b) a switch contact (c) an oven glove (d) a car windscreen
  37. 37.True or false: a skipping rope needs a flexible material. (a) True (b) False
  38. 38.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) cotton wool (d) paper
  39. 39.🔍 Which is the odd one out? (a) brass (b) aluminium (c) clay pottery (d) graphite
  40. 40.True or false: a tea flask lining needs a transparent material. (a) False (b) True

Answer key

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

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