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Engineering Worksheet: Materials

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

Answer key

  1. False
  2. flexible
  3. waterproof
  4. an oven glove
  5. True
  6. a conductor
  7. an insulator
  8. waterproof
  9. a switch contact
  10. a conductor
  11. False
  12. waterproof
  13. graphite
  14. False
  15. heat insulator
  16. True
  17. a boat hull
  18. clay pottery
  19. aluminium
  20. waterproof
  21. plastic-coated cloth
  22. a tea flask lining
  23. True
  24. flexible
  25. transparent
  26. plastic
  27. False
  28. a window pane
  29. a water tank
  30. dry wood
  31. rubber
  32. copper
  33. False
  34. copper
  35. wood or plastic
  36. transparent
  37. False
  38. False
  39. a raincoat
  40. a car windscreen

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