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Engineering Worksheet: Materials

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

Answer key

  1. False
  2. flexible
  3. electrical conductor
  4. waterproof
  5. heat insulator
  6. glass
  7. True
  8. iron
  9. an insulator
  10. a raincoat
  11. clay pottery
  12. copper
  13. True
  14. a skipping rope
  15. a conductor
  16. dry wood
  17. a conductor
  18. an insulator
  19. True
  20. brass
  21. aluminium
  22. a conductor
  23. steel
  24. False
  25. a yoga mat
  26. a cooking pot handle
  27. graphite
  28. waterproof
  29. rubber
  30. an oven glove
  31. heat insulator
  32. transparent
  33. flexible
  34. True
  35. plastic-coated cloth
  36. an insulator
  37. electrical conductor
  38. False
  39. flexible
  40. a conductor

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