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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 361 · 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 material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  2. 2.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  3. 3.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) dry wood (d) glass
  4. 4.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  5. 5.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  6. 6.Which of these needs an electrical conductor? (a) the core of a wire (b) a boat hull (c) a hair band (d) a spectacle lens
  7. 7.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.Which of these needs an electrical conductor? (a) a switch contact (b) a hair band (c) an umbrella cover (d) a tea flask lining
  9. 9.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) copper (d) aluminium
  10. 10.True or false: a magnifier lens needs a heat insulator. (a) True (b) False
  11. 11.🔍 Which is the odd one out? (a) plastic (b) glass (c) graphite (d) cotton cloth
  12. 12.🔍 Which is the odd one out? (a) glass (b) dry wood (c) steel (d) plastic
  13. 13.True or false: a car windscreen needs a transparent material. (a) True (b) False
  14. 14.🧱 Which property matters most for a water tank? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  15. 15.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🔍 Which is the odd one out? (a) steel (b) aluminium (c) copper (d) glass
  17. 17.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.True or false: a water tank needs a heat insulator. (a) True (b) False
  19. 19.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.True or false: a plug pin needs a waterproof material. (a) True (b) False
  21. 21.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) cotton cloth (d) copper
  23. 23.Which of these needs a waterproof material? (a) a car windscreen (b) an oven glove (c) a boat hull (d) a plug pin
  24. 24.Which of these needs a flexible material? (a) a boat hull (b) a switch contact (c) a car seat belt (d) a roof sheet
  25. 25.True or false: a hair band needs a heat insulator. (a) True (b) False
  26. 26.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  27. 27.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  28. 28.Which of these needs a transparent material? (a) a window pane (b) a switch contact (c) a roof sheet (d) a skipping rope
  29. 29.🔍 Which is the odd one out? (a) iron (b) copper (c) steel (d) plastic
  30. 30.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🧱 Which property matters most for a car seat belt? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  32. 32.🧱 Which property matters most for a boat hull? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  33. 33.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  34. 34.Which of these needs a heat insulator? (a) a boat hull (b) a cooking pot handle (c) the core of a wire (d) a roof sheet
  35. 35.🔍 Which is the odd one out? (a) brass (b) aluminium (c) iron (d) rubber
  36. 36.Which of these needs a flexible material? (a) a magnifier lens (b) a boat hull (c) a car windscreen (d) a skipping rope
  37. 37.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  38. 38.🔍 Which is the odd one out? (a) steel (b) brass (c) dry wood (d) aluminium
  39. 39.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  40. 40.True or false: the core of a wire needs a waterproof material. (a) True (b) False

Answer key

  1. steel
  2. plastic-coated cloth
  3. iron
  4. waterproof
  5. glass
  6. the core of a wire
  7. an insulator
  8. a switch contact
  9. wood or plastic
  10. False
  11. graphite
  12. steel
  13. True
  14. waterproof
  15. a conductor
  16. glass
  17. an insulator
  18. False
  19. a conductor
  20. False
  21. a conductor
  22. copper
  23. a boat hull
  24. a car seat belt
  25. False
  26. True
  27. transparent
  28. a window pane
  29. plastic
  30. an insulator
  31. flexible
  32. waterproof
  33. flexible
  34. a cooking pot handle
  35. rubber
  36. a skipping rope
  37. True
  38. dry wood
  39. copper
  40. False

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