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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 473 · 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 property matters most for a switch contact? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  2. 2.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  5. 5.Which of these needs a flexible material? (a) a plug pin (b) a raincoat (c) a cooking pot handle (d) a car seat belt
  6. 6.🔍 Which is the odd one out? (a) brass (b) rubber (c) glass (d) dry wood
  7. 7.🔍 Which is the odd one out? (a) iron (b) clay pottery (c) dry wood (d) glass
  8. 8.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  9. 9.Which of these needs a waterproof material? (a) a hair band (b) a raincoat (c) a cooking pot handle (d) a car windscreen
  10. 10.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  12. 12.True or false: a yoga mat needs a flexible material. (a) True (b) False
  13. 13.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) plastic (d) copper
  15. 15.True or false: an oven glove needs a flexible material. (a) True (b) False
  16. 16.Which of these needs a flexible material? (a) a boat hull (b) a raincoat (c) a skipping rope (d) a water tank
  17. 17.True or false: a raincoat needs a waterproof material. (a) True (b) False
  18. 18.🔍 Which is the odd one out? (a) rubber (b) glass (c) graphite (d) plastic
  19. 19.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.True or false: a tea flask lining needs a flexible material. (a) True (b) False
  21. 21.True or false: a raincoat needs a flexible material. (a) True (b) False
  22. 22.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) steel (d) glass
  23. 23.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  24. 24.🔍 Which is the odd one out? (a) steel (b) glass (c) iron (d) aluminium
  25. 25.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  26. 26.True or false: a car seat belt needs a flexible material. (a) False (b) True
  27. 27.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🔍 Which is the odd one out? (a) iron (b) brass (c) clay pottery (d) copper
  29. 29.True or false: a plug pin needs a transparent material. (a) True (b) False
  30. 30.🧱 Which property matters most for a window pane? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  31. 31.🧱 Which property matters most for a spectacle lens? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  32. 32.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  33. 33.🧱 Which property matters most for a hair band? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  34. 34.🧱 Which property matters most for a skipping rope? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  35. 35.🔍 Which is the odd one out? (a) steel (b) plastic (c) aluminium (d) brass
  36. 36.True or false: an oven glove needs a transparent material. (a) True (b) False
  37. 37.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) clay pottery (d) cotton cloth
  38. 38.True or false: a car seat belt needs an electrical conductor. (a) True (b) False
  39. 39.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor

Answer key

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

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