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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 746 · 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.

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

Answer key

  1. an insulator
  2. a raincoat
  3. clay pottery
  4. electrical conductor
  5. True
  6. the core of a wire
  7. True
  8. glass
  9. a cooking pot handle
  10. copper
  11. an insulator
  12. a magnifier lens
  13. aluminium
  14. False
  15. waterproof
  16. a skipping rope
  17. a conductor
  18. waterproof
  19. a conductor
  20. True
  21. flexible
  22. rubber
  23. False
  24. transparent
  25. an insulator
  26. False
  27. plastic-coated cloth
  28. glass
  29. a conductor
  30. an insulator
  31. True
  32. a car seat belt
  33. electrical conductor
  34. wood or plastic
  35. plastic
  36. a conductor
  37. flexible
  38. waterproof
  39. False
  40. a plug pin

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