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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 802 · 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) False (b) True
  2. 2.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which property matters most for a yoga mat? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  4. 4.Which of these needs a heat insulator? (a) a cooking pot handle (b) a skipping rope (c) a roof sheet (d) an umbrella cover
  5. 5.🔍 Which is the odd one out? (a) iron (b) aluminium (c) clay pottery (d) brass
  6. 6.🔍 Which is the odd one out? (a) copper (b) graphite (c) cotton cloth (d) brass
  7. 7.Which of these needs a flexible material? (a) a window pane (b) a cooking pot handle (c) a raincoat (d) a yoga mat
  8. 8.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  9. 9.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  10. 10.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  11. 11.Which of these needs an electrical conductor? (a) a switch contact (b) a skipping rope (c) a spectacle lens (d) a hair band
  12. 12.True or false: a window pane needs an electrical conductor. (a) False (b) True
  13. 13.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) plastic (d) aluminium
  14. 14.🧱 Which property matters most for a spectacle lens? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  15. 15.Which of these needs a waterproof material? (a) a car windscreen (b) a car seat belt (c) an umbrella cover (d) a tea flask lining
  16. 16.Which of these needs a transparent material? (a) a car seat belt (b) a hair band (c) a spectacle lens (d) a water tank
  17. 17.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) rubber (d) iron
  18. 18.🔍 Which is the odd one out? (a) rubber (b) plastic (c) clay pottery (d) copper
  19. 19.True or false: a water tank needs a waterproof material. (a) False (b) True
  20. 20.🔍 Which is the odd one out? (a) brass (b) glass (c) aluminium (d) graphite
  21. 21.Which of these needs a waterproof material? (a) a skipping rope (b) a car seat belt (c) a spectacle lens (d) a water tank
  22. 22.Which of these needs an electrical conductor? (a) a car seat belt (b) a roof sheet (c) a plug pin (d) an umbrella cover
  23. 23.🧱 Which property matters most for a skipping rope? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  24. 24.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  25. 25.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) brass (d) iron
  26. 26.True or false: a skipping rope needs a heat insulator. (a) False (b) True
  27. 27.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🔍 Which is the odd one out? (a) brass (b) plastic (c) clay pottery (d) rubber
  29. 29.🧱 Which property matters most for an oven glove? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  30. 30.🧱 Which property matters most for a raincoat? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  31. 31.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  32. 32.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  33. 33.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  34. 34.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  35. 35.Which of these needs a waterproof material? (a) a raincoat (b) the core of a wire (c) a car windscreen (d) a switch contact
  36. 36.Which of these needs a flexible material? (a) a tea flask lining (b) a hair band (c) a raincoat (d) a boat hull
  37. 37.Which of these needs a transparent material? (a) a hair band (b) the core of a wire (c) a raincoat (d) a magnifier lens
  38. 38.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🧱 Which property matters most for a roof sheet? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  40. 40.Which of these needs a flexible material? (a) a roof sheet (b) a car seat belt (c) a boat hull (d) a cooking pot handle

Answer key

  1. True
  2. a conductor
  3. flexible
  4. a cooking pot handle
  5. clay pottery
  6. cotton cloth
  7. a yoga mat
  8. steel
  9. plastic-coated cloth
  10. True
  11. a switch contact
  12. False
  13. aluminium
  14. transparent
  15. an umbrella cover
  16. a spectacle lens
  17. iron
  18. copper
  19. True
  20. glass
  21. a water tank
  22. a plug pin
  23. flexible
  24. glass
  25. dry wood
  26. False
  27. a conductor
  28. brass
  29. heat insulator
  30. waterproof
  31. False
  32. waterproof
  33. True
  34. copper
  35. a raincoat
  36. a hair band
  37. a magnifier lens
  38. a conductor
  39. waterproof
  40. a car seat belt

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