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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 664 · 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 a waterproof material? (a) a spectacle lens (b) a car windscreen (c) a water tank (d) a skipping rope
  2. 2.True or false: a roof sheet needs a transparent material. (a) True (b) False
  3. 3.Which of these needs a heat insulator? (a) a cooking pot handle (b) a roof sheet (c) a car seat belt (d) a magnifier lens
  4. 4.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  5. 5.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  6. 6.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  8. 8.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  9. 9.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  10. 10.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Which property matters most for a water tank? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  12. 12.True or false: a switch contact needs a heat insulator. (a) False (b) True
  13. 13.🧱 Which property matters most for a tea flask lining? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  14. 14.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  15. 15.True or false: a window pane needs a transparent material. (a) True (b) False
  16. 16.🔍 Which is the odd one out? (a) iron (b) brass (c) copper (d) rubber
  17. 17.🔍 Which is the odd one out? (a) aluminium (b) glass (c) copper (d) brass
  18. 18.True or false: a switch contact needs a waterproof material. (a) False (b) True
  19. 19.True or false: a water tank needs a waterproof material. (a) True (b) False
  20. 20.🧱 Which property matters most for a skipping rope? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  21. 21.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  22. 22.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  23. 23.True or false: a boat hull needs a flexible material. (a) True (b) False
  24. 24.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) plastic (d) glass
  25. 25.Which of these needs a flexible material? (a) a boat hull (b) an oven glove (c) a window pane (d) a skipping rope
  26. 26.Which of these needs a waterproof material? (a) a hair band (b) a cooking pot handle (c) a window pane (d) an umbrella cover
  27. 27.🧱 Which property matters most for the core of a wire? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  28. 28.🔍 Which is the odd one out? (a) copper (b) brass (c) dry wood (d) graphite
  29. 29.Which of these needs a transparent material? (a) a window pane (b) a boat hull (c) a roof sheet (d) a water tank
  30. 30.🧱 Which property matters most for a hair band? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  31. 31.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  32. 32.Which of these needs a transparent material? (a) a raincoat (b) a spectacle lens (c) a car seat belt (d) a tea flask lining
  33. 33.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  34. 34.Which of these needs a heat insulator? (a) a magnifier lens (b) a water tank (c) a car seat belt (d) a tea flask lining
  35. 35.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) copper (d) aluminium
  36. 36.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  38. 38.True or false: a yoga mat needs an electrical conductor. (a) False (b) True
  39. 39.🔍 Which is the odd one out? (a) clay pottery (b) steel (c) rubber (d) glass
  40. 40.Which of these needs a flexible material? (a) a magnifier lens (b) the core of a wire (c) a roof sheet (d) a yoga mat

Answer key

  1. a water tank
  2. False
  3. a cooking pot handle
  4. True
  5. False
  6. an insulator
  7. plastic-coated cloth
  8. waterproof
  9. waterproof
  10. an insulator
  11. waterproof
  12. False
  13. heat insulator
  14. glass
  15. True
  16. rubber
  17. glass
  18. False
  19. True
  20. flexible
  21. True
  22. electrical conductor
  23. False
  24. steel
  25. a skipping rope
  26. an umbrella cover
  27. electrical conductor
  28. dry wood
  29. a window pane
  30. flexible
  31. True
  32. a spectacle lens
  33. transparent
  34. a tea flask lining
  35. wood or plastic
  36. a conductor
  37. transparent
  38. False
  39. steel
  40. a yoga mat

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