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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 558 · 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 window pane (b) a car seat belt (c) a magnifier lens (d) an umbrella cover
  2. 2.Which of these needs a waterproof material? (a) a magnifier lens (b) a switch contact (c) a water tank (d) a skipping rope
  3. 3.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🔍 Which is the odd one out? (a) glass (b) iron (c) graphite (d) brass
  5. 5.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  6. 6.🧱 Which material is best for a window pane? (a) glass (b) steel (c) wood (d) brick
  7. 7.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.Which of these needs a heat insulator? (a) a water tank (b) an oven glove (c) a car seat belt (d) a switch contact
  9. 9.Which of these needs a flexible material? (a) a tea flask lining (b) a yoga mat (c) a spectacle lens (d) a raincoat
  10. 10.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.Which of these needs a waterproof material? (a) a magnifier lens (b) a hair band (c) a car windscreen (d) a raincoat
  12. 12.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  15. 15.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
  16. 16.True or false: a plug pin needs a transparent material. (a) True (b) False
  17. 17.Which of these needs an electrical conductor? (a) the core of a wire (b) a skipping rope (c) a car windscreen (d) an oven glove
  18. 18.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) iron (d) brass
  19. 19.Which of these needs a waterproof material? (a) a yoga mat (b) a switch contact (c) a roof sheet (d) a magnifier lens
  20. 20.True or false: a yoga mat needs a flexible material. (a) False (b) True
  21. 21.🧱 Which property matters most for a water tank? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  22. 22.🧱 Which property matters most for a car seat belt? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  23. 23.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  24. 24.🔍 Which is the odd one out? (a) graphite (b) plastic (c) cotton cloth (d) dry wood
  25. 25.True or false: a spectacle lens needs an electrical conductor. (a) True (b) False
  26. 26.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  27. 27.True or false: a water tank needs a waterproof material. (a) True (b) False
  28. 28.True or false: a skipping rope needs a flexible material. (a) False (b) True
  29. 29.Which of these needs an electrical conductor? (a) a boat hull (b) a spectacle lens (c) an umbrella cover (d) a switch contact
  30. 30.Which of these needs a heat insulator? (a) a raincoat (b) a roof sheet (c) a tea flask lining (d) a spectacle lens
  31. 31.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  32. 32.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Which property matters most for a magnifier lens? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  34. 34.Which of these needs a flexible material? (a) a magnifier lens (b) a hair band (c) a switch contact (d) a roof sheet
  35. 35.Which of these needs a transparent material? (a) a skipping rope (b) a raincoat (c) an oven glove (d) a window pane
  36. 36.Which of these needs a transparent material? (a) a switch contact (b) an oven glove (c) a roof sheet (d) a spectacle lens
  37. 37.Which of these needs a waterproof material? (a) a car seat belt (b) a window pane (c) a yoga mat (d) a boat hull
  38. 38.🔍 Which is the odd one out? (a) graphite (b) brass (c) cotton cloth (d) aluminium
  39. 39.🔍 Which is the odd one out? (a) glass (b) plastic (c) cotton cloth (d) iron
  40. 40.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. an umbrella cover
  2. a water tank
  3. a conductor
  4. glass
  5. wood or plastic
  6. glass
  7. an insulator
  8. an oven glove
  9. a yoga mat
  10. a conductor
  11. a raincoat
  12. a conductor
  13. an insulator
  14. waterproof
  15. plastic-coated cloth
  16. False
  17. the core of a wire
  18. plastic
  19. a roof sheet
  20. True
  21. waterproof
  22. flexible
  23. False
  24. graphite
  25. False
  26. waterproof
  27. True
  28. True
  29. a switch contact
  30. a tea flask lining
  31. copper
  32. an insulator
  33. transparent
  34. a hair band
  35. a window pane
  36. a spectacle lens
  37. a boat hull
  38. cotton cloth
  39. iron
  40. a conductor

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