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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 813 · 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 an electrical conductor? (a) a skipping rope (b) a plug pin (c) a roof sheet (d) a water tank
  2. 2.Which of these needs a flexible material? (a) an umbrella cover (b) a plug pin (c) a switch contact (d) a hair band
  3. 3.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  4. 4.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  5. 5.True or false: a car seat belt needs a flexible material. (a) True (b) False
  6. 6.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.Which of these needs a flexible material? (a) a skipping rope (b) a boat hull (c) a switch contact (d) a water tank
  8. 8.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  9. 9.Which of these needs a waterproof material? (a) a window pane (b) an oven glove (c) a water tank (d) the core of a wire
  10. 10.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  11. 11.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) copper (d) graphite
  12. 12.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🔍 Which is the odd one out? (a) copper (b) plastic (c) aluminium (d) steel
  14. 14.Which of these needs an electrical conductor? (a) a car seat belt (b) a boat hull (c) the core of a wire (d) a hair band
  15. 15.True or false: a car windscreen needs a transparent material. (a) False (b) True
  16. 16.True or false: a water tank needs a transparent material. (a) True (b) False
  17. 17.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) plastic (d) glass
  18. 18.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  19. 19.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) rubber (d) glass
  20. 20.Which of these needs a heat insulator? (a) the core of a wire (b) a cooking pot handle (c) a roof sheet (d) a window pane
  21. 21.Which of these needs a flexible material? (a) a raincoat (b) a roof sheet (c) a yoga mat (d) a plug pin
  22. 22.🧱 Which property matters most for a water tank? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  23. 23.🔍 Which is the odd one out? (a) steel (b) glass (c) brass (d) graphite
  24. 24.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Which property matters most for a boat hull? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  26. 26.🔍 Which is the odd one out? (a) brass (b) graphite (c) steel (d) clay pottery
  27. 27.Which of these needs an electrical conductor? (a) a magnifier lens (b) a hair band (c) a switch contact (d) a cooking pot handle
  28. 28.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  29. 29.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  30. 30.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  31. 31.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  33. 33.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) aluminium (d) copper
  34. 34.Which of these needs a transparent material? (a) a car windscreen (b) a cooking pot handle (c) the core of a wire (d) a yoga mat
  35. 35.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  36. 36.🔍 Which is the odd one out? (a) steel (b) iron (c) graphite (d) cotton cloth
  37. 37.Which of these needs a waterproof material? (a) a tea flask lining (b) a roof sheet (c) the core of a wire (d) a switch contact
  38. 38.True or false: a raincoat needs a transparent material. (a) False (b) True
  39. 39.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) clay pottery (d) plastic
  40. 40.🧱 Which property matters most for a skipping rope? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator

Answer key

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

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