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Engineering Worksheet: Materials

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

Answer key

  1. False
  2. True
  3. an insulator
  4. a plug pin
  5. plastic
  6. transparent
  7. waterproof
  8. False
  9. True
  10. True
  11. an oven glove
  12. flexible
  13. a conductor
  14. False
  15. rubber
  16. False
  17. a roof sheet
  18. waterproof
  19. waterproof
  20. copper
  21. flexible
  22. plastic-coated cloth
  23. True
  24. False
  25. graphite
  26. glass
  27. clay pottery
  28. a window pane
  29. False
  30. False
  31. heat insulator
  32. a raincoat
  33. cotton cloth
  34. a conductor
  35. an insulator
  36. a conductor
  37. a skipping rope
  38. False
  39. False
  40. steel

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