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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 780 · 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: a car seat belt needs a waterproof material. (a) False (b) True
  2. 2.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) copper (d) glass
  3. 3.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) steel (d) copper
  4. 4.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  6. 6.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.True or false: a hair band needs a waterproof material. (a) False (b) True
  8. 8.🔍 Which is the odd one out? (a) graphite (b) copper (c) dry wood (d) brass
  9. 9.Which of these needs a transparent material? (a) a yoga mat (b) the core of a wire (c) a magnifier lens (d) an umbrella cover
  10. 10.Which of these needs a heat insulator? (a) a water tank (b) a hair band (c) a yoga mat (d) an oven glove
  11. 11.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🧱 Which property matters most for the core of a wire? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  13. 13.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  14. 14.True or false: a window pane needs a heat insulator. (a) False (b) True
  15. 15.Which of these needs a waterproof material? (a) a yoga mat (b) a magnifier lens (c) a raincoat (d) a spectacle lens
  16. 16.Which of these needs a transparent material? (a) a car seat belt (b) a car windscreen (c) an umbrella cover (d) a raincoat
  17. 17.Which of these needs a heat insulator? (a) a roof sheet (b) the core of a wire (c) a cooking pot handle (d) an umbrella cover
  18. 18.🔍 Which is the odd one out? (a) iron (b) glass (c) steel (d) aluminium
  19. 19.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.Which of these needs a waterproof material? (a) a roof sheet (b) a spectacle lens (c) a window pane (d) an oven glove
  21. 21.True or false: an oven glove needs a flexible material. (a) False (b) True
  22. 22.🧱 Which property matters most for a raincoat? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  23. 23.🧱 Which property matters most for a water tank? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  24. 24.🔍 Which is the odd one out? (a) aluminium (b) copper (c) brass (d) cotton cloth
  25. 25.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  26. 26.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  27. 27.Which of these needs a flexible material? (a) a yoga mat (b) an umbrella cover (c) a spectacle lens (d) a roof sheet
  28. 28.True or false: a yoga mat needs a flexible material. (a) True (b) False
  29. 29.Which of these needs a waterproof material? (a) a car seat belt (b) a yoga mat (c) a skipping rope (d) an umbrella cover
  30. 30.🧱 Which property matters most for a hair band? (a) transparent (b) waterproof (c) flexible (d) heat 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 car windscreen (b) a magnifier lens (c) a roof sheet (d) a hair band
  33. 33.Which of these needs a flexible material? (a) a raincoat (b) the core of a wire (c) a skipping rope (d) a switch contact
  34. 34.🧱 Which property matters most for a roof sheet? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  35. 35.True or false: a plug pin needs a flexible material. (a) True (b) False
  36. 36.True or false: a plug pin needs a heat insulator. (a) True (b) False
  37. 37.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  38. 38.Which of these needs a waterproof material? (a) a spectacle lens (b) an oven glove (c) a boat hull (d) a plug pin
  39. 39.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🔍 Which is the odd one out? (a) copper (b) graphite (c) iron (d) rubber

Answer key

  1. False
  2. copper
  3. plastic
  4. a conductor
  5. plastic-coated cloth
  6. a conductor
  7. False
  8. dry wood
  9. a magnifier lens
  10. an oven glove
  11. an insulator
  12. electrical conductor
  13. steel
  14. False
  15. a raincoat
  16. a car windscreen
  17. a cooking pot handle
  18. glass
  19. an insulator
  20. a roof sheet
  21. False
  22. waterproof
  23. waterproof
  24. cotton cloth
  25. wood or plastic
  26. heat insulator
  27. a yoga mat
  28. True
  29. an umbrella cover
  30. flexible
  31. True
  32. a hair band
  33. a skipping rope
  34. waterproof
  35. False
  36. False
  37. glass
  38. a boat hull
  39. an insulator
  40. rubber

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