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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 785 · 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 transparent material? (a) a yoga mat (b) a tea flask lining (c) a water tank (d) a spectacle lens
  2. 2.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  4. 4.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  6. 6.🧱 Which property matters most for a yoga mat? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  7. 7.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  8. 8.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Which property matters most for a boat hull? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  10. 10.Which of these needs an electrical conductor? (a) a boat hull (b) an oven glove (c) a yoga mat (d) a switch contact
  11. 11.🔍 Which is the odd one out? (a) steel (b) graphite (c) iron (d) clay pottery
  12. 12.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  13. 13.Which of these needs a flexible material? (a) a roof sheet (b) a switch contact (c) a car seat belt (d) a plug pin
  14. 14.Which of these needs a flexible material? (a) a plug pin (b) an umbrella cover (c) a hair band (d) a car windscreen
  15. 15.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🧱 Which property matters most for a roof sheet? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  17. 17.Which of these needs a flexible material? (a) a yoga mat (b) a raincoat (c) a car windscreen (d) a switch contact
  18. 18.Which of these needs a waterproof material? (a) a spectacle lens (b) a roof sheet (c) a hair band (d) a cooking pot handle
  19. 19.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.Which of these needs a transparent material? (a) a roof sheet (b) a magnifier lens (c) a water tank (d) an umbrella cover
  21. 21.🧱 Which property matters most for a water tank? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  22. 22.🔍 Which is the odd one out? (a) steel (b) aluminium (c) iron (d) plastic
  23. 23.Which of these needs a heat insulator? (a) a car windscreen (b) a plug pin (c) a spectacle lens (d) an oven glove
  24. 24.True or false: a skipping rope needs a transparent material. (a) True (b) False
  25. 25.🔍 Which is the odd one out? (a) cotton cloth (b) graphite (c) rubber (d) dry wood
  26. 26.Which of these needs an electrical conductor? (a) a plug pin (b) a water tank (c) a hair band (d) a car windscreen
  27. 27.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  28. 28.Which of these needs an electrical conductor? (a) a water tank (b) a car windscreen (c) a tea flask lining (d) the core of a wire
  29. 29.🔍 Which is the odd one out? (a) dry wood (b) steel (c) clay pottery (d) plastic
  30. 30.Which of these needs a transparent material? (a) a car windscreen (b) a hair band (c) an umbrella cover (d) a yoga mat
  31. 31.True or false: a roof sheet needs a flexible material. (a) True (b) False
  32. 32.True or false: a hair band needs a flexible material. (a) False (b) True
  33. 33.True or false: a raincoat needs a heat insulator. (a) False (b) True
  34. 34.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
  35. 35.🔍 Which is the odd one out? (a) steel (b) iron (c) brass (d) rubber
  36. 36.Which of these needs a waterproof material? (a) a magnifier lens (b) a window pane (c) a raincoat (d) a car windscreen
  37. 37.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  38. 38.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  39. 39.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) dry wood (d) iron
  40. 40.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel

Answer key

  1. a spectacle lens
  2. an insulator
  3. False
  4. an insulator
  5. waterproof
  6. flexible
  7. wood or plastic
  8. an insulator
  9. waterproof
  10. a switch contact
  11. clay pottery
  12. glass
  13. a car seat belt
  14. a hair band
  15. a conductor
  16. waterproof
  17. a yoga mat
  18. a roof sheet
  19. a conductor
  20. a magnifier lens
  21. waterproof
  22. plastic
  23. an oven glove
  24. False
  25. graphite
  26. a plug pin
  27. transparent
  28. the core of a wire
  29. steel
  30. a car windscreen
  31. False
  32. True
  33. False
  34. copper
  35. rubber
  36. a raincoat
  37. True
  38. False
  39. iron
  40. steel

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