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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 371 · 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.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  2. 2.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.True or false: a plug pin needs a transparent material. (a) False (b) True
  4. 4.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.True or false: a raincoat needs a waterproof material. (a) True (b) False
  6. 6.🔍 Which is the odd one out? (a) steel (b) dry wood (c) rubber (d) clay pottery
  7. 7.🔍 Which is the odd one out? (a) steel (b) copper (c) aluminium (d) rubber
  8. 8.Which of these needs a heat insulator? (a) a water tank (b) an umbrella cover (c) a tea flask lining (d) a yoga mat
  9. 9.True or false: a car windscreen needs a transparent material. (a) True (b) False
  10. 10.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.True or false: the core of a wire needs a flexible material. (a) False (b) True
  12. 12.Which of these needs a heat insulator? (a) a car windscreen (b) an oven glove (c) a switch contact (d) a roof sheet
  13. 13.🧱 Which property matters most for a boat hull? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  14. 14.🧱 Which property matters most for a switch contact? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  15. 15.Which of these needs a waterproof material? (a) a switch contact (b) a tea flask lining (c) a raincoat (d) a car windscreen
  16. 16.🔍 Which is the odd one out? (a) brass (b) dry wood (c) clay pottery (d) glass
  17. 17.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) dry wood (d) plastic
  18. 18.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  19. 19.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for a hair band? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  21. 21.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  23. 23.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  24. 24.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  25. 25.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.Which of these needs an electrical conductor? (a) an oven glove (b) a cooking pot handle (c) the core of a wire (d) an umbrella cover
  27. 27.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.True or false: a magnifier lens needs a heat insulator. (a) True (b) False
  29. 29.🧱 Which property matters most for a window pane? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  30. 30.🧱 Which property matters most for a raincoat? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  31. 31.Which of these needs an electrical conductor? (a) a water tank (b) a boat hull (c) a skipping rope (d) a plug pin
  32. 32.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  33. 33.Which of these needs a transparent material? (a) an umbrella cover (b) a car seat belt (c) a car windscreen (d) a raincoat
  34. 34.🧱 Which property matters most for a skipping rope? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  35. 35.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  36. 36.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  37. 37.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) aluminium (d) rubber
  38. 38.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.True or false: a water tank needs a waterproof material. (a) True (b) False
  40. 40.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel

Answer key

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

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