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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 892 · 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 cooking pot handle (b) a window pane (c) a water tank (d) the core of a wire
  2. 2.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.True or false: a boat hull needs a transparent material. (a) False (b) True
  7. 7.🔍 Which is the odd one out? (a) rubber (b) plastic (c) copper (d) dry wood
  8. 8.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.Which of these needs a flexible material? (a) a raincoat (b) a yoga mat (c) a roof sheet (d) a magnifier lens
  10. 10.🧱 Which property matters most for a yoga mat? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  11. 11.🧱 Which property matters most for a raincoat? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  12. 12.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  13. 13.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.Which of these needs a heat insulator? (a) a spectacle lens (b) a cooking pot handle (c) a roof sheet (d) a car windscreen
  15. 15.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  16. 16.True or false: a water tank needs a waterproof material. (a) False (b) True
  17. 17.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  18. 18.Which of these needs a flexible material? (a) a boat hull (b) a spectacle lens (c) a skipping rope (d) a raincoat
  19. 19.🧱 Which property matters most for a tea flask lining? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  20. 20.True or false: a window pane needs a transparent material. (a) False (b) True
  21. 21.True or false: a hair band needs a transparent material. (a) False (b) True
  22. 22.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  24. 24.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  25. 25.Which of these needs an electrical conductor? (a) a car seat belt (b) a hair band (c) the core of a wire (d) an umbrella cover
  26. 26.🔍 Which is the odd one out? (a) steel (b) copper (c) aluminium (d) rubber
  27. 27.True or false: a magnifier lens needs an electrical conductor. (a) True (b) False
  28. 28.True or false: a plug pin needs a waterproof material. (a) False (b) True
  29. 29.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  30. 30.True or false: a boat hull needs a waterproof material. (a) True (b) False
  31. 31.🔍 Which is the odd one out? (a) steel (b) plastic (c) aluminium (d) iron
  32. 32.Which of these needs a waterproof material? (a) a tea flask lining (b) a skipping rope (c) a roof sheet (d) a magnifier lens
  33. 33.True or false: a boat hull needs a flexible material. (a) True (b) False
  34. 34.🧱 Which property matters most for a car windscreen? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  35. 35.Which of these needs an electrical conductor? (a) an umbrella cover (b) a plug pin (c) a spectacle lens (d) an oven glove
  36. 36.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  37. 37.Which of these needs an electrical conductor? (a) a raincoat (b) a switch contact (c) a car windscreen (d) an oven glove
  38. 38.True or false: a water tank needs a flexible material. (a) True (b) False
  39. 39.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  40. 40.True or false: a magnifier lens needs a flexible material. (a) False (b) True

Answer key

  1. a water tank
  2. a conductor
  3. an insulator
  4. a conductor
  5. a conductor
  6. False
  7. copper
  8. a conductor
  9. a yoga mat
  10. flexible
  11. waterproof
  12. steel
  13. an insulator
  14. a cooking pot handle
  15. flexible
  16. True
  17. wood or plastic
  18. a skipping rope
  19. heat insulator
  20. True
  21. False
  22. an insulator
  23. copper
  24. plastic-coated cloth
  25. the core of a wire
  26. rubber
  27. False
  28. False
  29. heat insulator
  30. True
  31. plastic
  32. a roof sheet
  33. False
  34. transparent
  35. a plug pin
  36. transparent
  37. a switch contact
  38. False
  39. True
  40. False

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