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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 419 · 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 of these needs a waterproof material? (a) a cooking pot handle (b) a roof sheet (c) a skipping rope (d) a car windscreen
  2. 2.Which of these needs an electrical conductor? (a) a switch contact (b) a tea flask lining (c) a spectacle lens (d) a yoga mat
  3. 3.Which of these needs a heat insulator? (a) the core of a wire (b) an umbrella cover (c) a tea flask lining (d) a skipping rope
  4. 4.True or false: a skipping rope needs a flexible material. (a) True (b) False
  5. 5.True or false: a roof sheet needs a transparent material. (a) False (b) True
  6. 6.Which of these needs a heat insulator? (a) a plug pin (b) a raincoat (c) a boat hull (d) a cooking pot handle
  7. 7.🧱 Which material is best for a window pane? (a) brick (b) wood (c) steel (d) glass
  8. 8.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) wood (d) glass
  10. 10.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) copper (d) aluminium
  12. 12.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  13. 13.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) paper (d) cotton wool
  14. 14.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  15. 15.Which of these needs an electrical conductor? (a) a car seat belt (b) a raincoat (c) a car windscreen (d) the core of a wire
  16. 16.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) iron (d) dry wood
  17. 17.Which of these needs a transparent material? (a) a hair band (b) a yoga mat (c) a water tank (d) a spectacle lens
  18. 18.True or false: the core of a wire needs a transparent material. (a) True (b) False
  19. 19.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.True or false: an umbrella cover needs a transparent material. (a) False (b) True
  21. 21.Which of these needs a flexible material? (a) a tea flask lining (b) a yoga mat (c) the core of a wire (d) a plug pin
  22. 22.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  23. 23.True or false: a yoga mat needs a flexible material. (a) False (b) True
  24. 24.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) plastic (b) brass (c) dry wood (d) cotton cloth
  26. 26.🔍 Which is the odd one out? (a) plastic (b) iron (c) steel (d) graphite
  27. 27.True or false: an umbrella cover needs a heat insulator. (a) True (b) False
  28. 28.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.True or false: an oven glove needs a transparent material. (a) True (b) False
  30. 30.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) copper (d) glass
  31. 31.True or false: an oven glove needs a heat insulator. (a) True (b) False
  32. 32.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  33. 33.🧱 Which property matters most for a boat hull? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  34. 34.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  35. 35.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) rubber (d) clay pottery
  36. 36.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  37. 37.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) aluminium (d) graphite
  39. 39.True or false: a tea flask lining needs a waterproof material. (a) False (b) True
  40. 40.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

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

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