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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 360 · 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.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.Which of these needs a heat insulator? (a) a skipping rope (b) a car seat belt (c) a cooking pot handle (d) the core of a wire
  3. 3.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  4. 4.🧱 Which property matters most for a hair band? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  5. 5.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  7. 7.True or false: an oven glove needs a waterproof material. (a) False (b) True
  8. 8.🔍 Which is the odd one out? (a) rubber (b) iron (c) copper (d) brass
  9. 9.True or false: a hair band needs a waterproof material. (a) False (b) True
  10. 10.Which of these needs a flexible material? (a) an oven glove (b) a plug pin (c) an umbrella cover (d) a skipping rope
  11. 11.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) glass (d) iron
  12. 12.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  13. 13.🔍 Which is the odd one out? (a) dry wood (b) glass (c) rubber (d) copper
  14. 14.🧱 Which property matters most for an oven glove? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  15. 15.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  16. 16.True or false: a raincoat needs a waterproof material. (a) False (b) True
  17. 17.🧱 Is brass 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.Which of these needs an electrical conductor? (a) a skipping rope (b) a tea flask lining (c) a water tank (d) the core of a wire
  20. 20.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  21. 21.🔍 Which is the odd one out? (a) plastic (b) graphite (c) clay pottery (d) rubber
  22. 22.True or false: a tea flask lining needs a flexible material. (a) False (b) True
  23. 23.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🧱 Which property matters most for a raincoat? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  25. 25.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  26. 26.True or false: a water tank needs an electrical conductor. (a) True (b) False
  27. 27.Which of these needs a heat insulator? (a) a raincoat (b) a water tank (c) a magnifier lens (d) an oven glove
  28. 28.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  29. 29.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  31. 31.Which of these needs a waterproof material? (a) a hair band (b) a boat hull (c) a yoga mat (d) a spectacle lens
  32. 32.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.Which of these needs a transparent material? (a) a water tank (b) a boat hull (c) a roof sheet (d) a car windscreen
  34. 34.True or false: a skipping rope needs a transparent material. (a) True (b) False
  35. 35.Which of these needs a heat insulator? (a) a tea flask lining (b) a plug pin (c) a yoga mat (d) a boat hull
  36. 36.True or false: the core of a wire needs a waterproof material. (a) True (b) False
  37. 37.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  38. 38.Which of these needs a flexible material? (a) a water tank (b) a tea flask lining (c) a plug pin (d) a hair band
  39. 39.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) steel (d) glass
  40. 40.🧱 Which property matters most for a roof sheet? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor

Answer key

  1. a conductor
  2. a cooking pot handle
  3. glass
  4. flexible
  5. a conductor
  6. True
  7. False
  8. rubber
  9. False
  10. a skipping rope
  11. iron
  12. False
  13. copper
  14. heat insulator
  15. waterproof
  16. True
  17. a conductor
  18. an insulator
  19. the core of a wire
  20. copper
  21. graphite
  22. False
  23. an insulator
  24. waterproof
  25. True
  26. False
  27. an oven glove
  28. transparent
  29. an insulator
  30. plastic-coated cloth
  31. a boat hull
  32. a conductor
  33. a car windscreen
  34. False
  35. a tea flask lining
  36. False
  37. False
  38. a hair band
  39. steel
  40. waterproof

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