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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 80 · 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 the core of a wire? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  2. 2.🧱 Which property matters most for an umbrella cover? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  3. 3.🧱 Which material is best for a window pane? (a) brick (b) wood (c) glass (d) steel
  4. 4.Which of these needs a transparent material? (a) a car windscreen (b) a yoga mat (c) a switch contact (d) a boat hull
  5. 5.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🧱 Which property matters most for a water tank? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  7. 7.🧱 Which property matters most for a car windscreen? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  8. 8.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) plastic (d) aluminium
  9. 9.🧱 Which property matters most for a roof sheet? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  10. 10.🔍 Which is the odd one out? (a) plastic (b) steel (c) dry wood (d) cotton cloth
  11. 11.🧱 Which property matters most for an oven glove? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  12. 12.Which of these needs a flexible material? (a) a raincoat (b) a water tank (c) a tea flask lining (d) a skipping rope
  13. 13.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  14. 14.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  15. 15.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) copper (d) iron
  16. 16.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  17. 17.🧱 Which property matters most for a spectacle lens? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  18. 18.True or false: a raincoat needs a transparent material. (a) False (b) True
  19. 19.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  20. 20.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) graphite (d) rubber
  21. 21.Which of these needs a waterproof material? (a) a cooking pot handle (b) a spectacle lens (c) a hair band (d) a roof sheet
  22. 22.Which of these needs a flexible material? (a) a yoga mat (b) a car windscreen (c) a cooking pot handle (d) an oven glove
  23. 23.Which of these needs a heat insulator? (a) the core of a wire (b) an oven glove (c) a magnifier lens (d) a plug pin
  24. 24.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.True or false: a cooking pot handle needs a transparent material. (a) True (b) False
  26. 26.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.True or false: a car seat belt needs a flexible material. (a) True (b) False
  28. 28.Which of these needs a waterproof material? (a) a cooking pot handle (b) a yoga mat (c) a switch contact (d) an umbrella cover
  29. 29.🔍 Which is the odd one out? (a) copper (b) graphite (c) aluminium (d) rubber
  30. 30.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) iron (d) dry wood
  31. 31.True or false: a water tank needs a waterproof material. (a) False (b) True
  32. 32.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  33. 33.Which of these needs an electrical conductor? (a) a car seat belt (b) a cooking pot handle (c) a switch contact (d) a raincoat
  34. 34.🧱 Which property matters most for a yoga mat? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  35. 35.Which of these needs a transparent material? (a) a magnifier lens (b) a tea flask lining (c) a roof sheet (d) a yoga mat
  36. 36.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.True or false: a raincoat needs a waterproof material. (a) True (b) False
  38. 38.True or false: a plug pin needs a waterproof material. (a) False (b) True
  39. 39.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.True or false: an umbrella cover needs a flexible material. (a) True (b) False

Answer key

  1. electrical conductor
  2. waterproof
  3. glass
  4. a car windscreen
  5. a conductor
  6. waterproof
  7. transparent
  8. aluminium
  9. waterproof
  10. steel
  11. heat insulator
  12. a skipping rope
  13. True
  14. transparent
  15. cotton cloth
  16. False
  17. transparent
  18. False
  19. True
  20. graphite
  21. a roof sheet
  22. a yoga mat
  23. an oven glove
  24. a conductor
  25. False
  26. an insulator
  27. True
  28. an umbrella cover
  29. rubber
  30. iron
  31. True
  32. plastic-coated cloth
  33. a switch contact
  34. flexible
  35. a magnifier lens
  36. a conductor
  37. True
  38. False
  39. an insulator
  40. False

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