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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 147 · 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) dry wood (b) graphite (c) glass (d) plastic
  2. 2.🧱 Which material is best for a window pane? (a) brick (b) glass (c) steel (d) wood
  3. 3.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  4. 4.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.Which of these needs a heat insulator? (a) a tea flask lining (b) a window pane (c) a plug pin (d) a boat hull
  6. 6.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) plastic-coated cloth (d) cotton wool
  8. 8.Which of these needs a waterproof material? (a) a water tank (b) a cooking pot handle (c) a hair band (d) an oven glove
  9. 9.🔍 Which is the odd one out? (a) iron (b) glass (c) steel (d) copper
  10. 10.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) dry wood (d) aluminium
  11. 11.Which of these needs an electrical conductor? (a) a water tank (b) a roof sheet (c) the core of a wire (d) a car seat belt
  12. 12.🧱 Which property matters most for a hair band? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  13. 13.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  14. 14.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  15. 15.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  17. 17.Which of these needs a flexible material? (a) a hair band (b) an umbrella cover (c) the core of a wire (d) a plug pin
  18. 18.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) steel (d) clay pottery
  19. 19.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  20. 20.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) plastic (d) iron
  21. 21.True or false: a boat hull needs a transparent material. (a) True (b) False
  22. 22.🧱 Which property matters most for a boat hull? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  23. 23.Which of these needs a heat insulator? (a) an oven glove (b) a boat hull (c) a car seat belt (d) a skipping rope
  24. 24.🔍 Which is the odd one out? (a) steel (b) graphite (c) clay pottery (d) copper
  25. 25.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) copper (d) plastic
  26. 26.Which of these needs a flexible material? (a) a yoga mat (b) a plug pin (c) an umbrella cover (d) a switch contact
  27. 27.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.Which of these needs a flexible material? (a) a car seat belt (b) a roof sheet (c) the core of a wire (d) a magnifier lens
  30. 30.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  31. 31.🧱 Which property matters most for a roof sheet? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  32. 32.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🔍 Which is the odd one out? (a) plastic (b) graphite (c) steel (d) aluminium
  34. 34.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  35. 35.True or false: a car seat belt needs a flexible material. (a) True (b) False
  36. 36.🧱 Which property matters most for a tea flask lining? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  37. 37.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  38. 38.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  39. 39.Which of these needs a transparent material? (a) an umbrella cover (b) a skipping rope (c) a car windscreen (d) a plug pin
  40. 40.🧱 Which property matters most for a window pane? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator

Answer key

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

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