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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 969 · 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 yoga mat needs an electrical conductor. (a) True (b) False
  2. 2.🧱 Which property matters most for a boat hull? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  3. 3.Which of these needs a waterproof material? (a) a yoga mat (b) a boat hull (c) a window pane (d) an oven glove
  4. 4.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  5. 5.True or false: a window pane needs a waterproof material. (a) True (b) False
  6. 6.True or false: a hair band needs a waterproof material. (a) True (b) False
  7. 7.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  9. 9.🔍 Which is the odd one out? (a) copper (b) steel (c) iron (d) clay pottery
  10. 10.🔍 Which is the odd one out? (a) steel (b) aluminium (c) dry wood (d) graphite
  11. 11.Which of these needs a flexible material? (a) a boat hull (b) a car seat belt (c) a cooking pot handle (d) an umbrella cover
  12. 12.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) aluminium (d) clay pottery
  13. 13.🧱 Which property matters most for a roof sheet? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  14. 14.True or false: an oven glove needs a flexible material. (a) False (b) True
  15. 15.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  16. 16.Which of these needs an electrical conductor? (a) a raincoat (b) the core of a wire (c) a car windscreen (d) a roof sheet
  17. 17.True or false: a boat hull needs a waterproof material. (a) False (b) True
  18. 18.Which of these needs a transparent material? (a) an oven glove (b) a magnifier lens (c) a skipping rope (d) a switch contact
  19. 19.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  20. 20.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  21. 21.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🔍 Which is the odd one out? (a) iron (b) brass (c) steel (d) plastic
  23. 23.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  24. 24.True or false: a car windscreen needs a transparent material. (a) False (b) True
  25. 25.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  26. 26.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🔍 Which is the odd one out? (a) brass (b) rubber (c) clay pottery (d) cotton cloth
  28. 28.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  29. 29.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.Which of these needs a flexible material? (a) a raincoat (b) a switch contact (c) a roof sheet (d) a hair band
  31. 31.True or false: a hair band needs a flexible material. (a) True (b) False
  32. 32.True or false: a raincoat needs a waterproof material. (a) True (b) False
  33. 33.🔍 Which is the odd one out? (a) iron (b) aluminium (c) rubber (d) copper
  34. 34.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber
  35. 35.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  37. 37.🧱 Which property matters most for a skipping rope? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  38. 38.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.Which of these needs a flexible material? (a) a car windscreen (b) a skipping rope (c) a roof sheet (d) the core of a wire
  40. 40.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible

Answer key

  1. False
  2. waterproof
  3. a boat hull
  4. copper
  5. False
  6. False
  7. an insulator
  8. waterproof
  9. clay pottery
  10. dry wood
  11. a car seat belt
  12. aluminium
  13. waterproof
  14. False
  15. True
  16. the core of a wire
  17. True
  18. a magnifier lens
  19. glass
  20. wood or plastic
  21. an insulator
  22. plastic
  23. heat insulator
  24. True
  25. plastic-coated cloth
  26. a conductor
  27. brass
  28. transparent
  29. a conductor
  30. a hair band
  31. True
  32. True
  33. rubber
  34. steel
  35. an insulator
  36. True
  37. flexible
  38. a conductor
  39. a skipping rope
  40. heat insulator

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