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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 790 · 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 is the odd one out? (a) plastic (b) iron (c) steel (d) copper
  2. 2.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.Which of these needs a waterproof material? (a) a car seat belt (b) a plug pin (c) a roof sheet (d) a yoga mat
  4. 4.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) plastic (d) iron
  5. 5.🧱 Which property matters most for a roof sheet? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  6. 6.🧱 Which property matters most for a spectacle lens? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  7. 7.Which of these needs an electrical conductor? (a) a boat hull (b) an oven glove (c) a plug pin (d) a cooking pot handle
  8. 8.🔍 Which is the odd one out? (a) aluminium (b) brass (c) graphite (d) rubber
  9. 9.🧱 Which property matters most for a window pane? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  10. 10.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  11. 11.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  12. 12.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  13. 13.Which of these needs a flexible material? (a) an umbrella cover (b) a skipping rope (c) a raincoat (d) a water tank
  14. 14.🧱 Which material is best for a window pane? (a) steel (b) glass (c) brick (d) wood
  15. 15.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic
  16. 16.Which of these needs a heat insulator? (a) a skipping rope (b) an umbrella cover (c) a boat hull (d) a cooking pot handle
  17. 17.Which of these needs an electrical conductor? (a) a roof sheet (b) a tea flask lining (c) a water tank (d) a switch contact
  18. 18.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) clay pottery (d) aluminium
  20. 20.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  21. 21.Which of these needs an electrical conductor? (a) a spectacle lens (b) a cooking pot handle (c) the core of a wire (d) a car seat belt
  22. 22.🧱 Which property matters most for a water tank? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  23. 23.Which of these needs a flexible material? (a) the core of a wire (b) a yoga mat (c) an umbrella cover (d) a switch contact
  24. 24.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  26. 26.🧱 Which property matters most for a raincoat? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  27. 27.🧱 Which property matters most for a boat hull? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  28. 28.Which of these needs a waterproof material? (a) a plug pin (b) an umbrella cover (c) a spectacle lens (d) a magnifier lens
  29. 29.Which of these needs a transparent material? (a) a window pane (b) an oven glove (c) a car seat belt (d) a raincoat
  30. 30.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) aluminium (d) copper
  31. 31.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  32. 32.🔍 Which is the odd one out? (a) steel (b) copper (c) iron (d) clay pottery
  33. 33.True or false: a tea flask lining needs a flexible material. (a) False (b) True
  34. 34.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  35. 35.Which of these needs a transparent material? (a) an umbrella cover (b) a water tank (c) a spectacle lens (d) a switch contact
  36. 36.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🧱 Which property matters most for a hair band? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  38. 38.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  39. 39.🧱 Which property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  40. 40.True or false: a spectacle lens needs a flexible material. (a) True (b) False

Answer key

  1. plastic
  2. an insulator
  3. a roof sheet
  4. iron
  5. waterproof
  6. transparent
  7. a plug pin
  8. rubber
  9. transparent
  10. waterproof
  11. plastic-coated cloth
  12. True
  13. a skipping rope
  14. glass
  15. steel
  16. a cooking pot handle
  17. a switch contact
  18. an insulator
  19. aluminium
  20. False
  21. the core of a wire
  22. waterproof
  23. a yoga mat
  24. an insulator
  25. flexible
  26. waterproof
  27. waterproof
  28. an umbrella cover
  29. a window pane
  30. wood or plastic
  31. copper
  32. clay pottery
  33. False
  34. True
  35. a spectacle lens
  36. a conductor
  37. flexible
  38. heat insulator
  39. flexible
  40. False

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