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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 772 · 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 magnifier lens needs a waterproof material. (a) False (b) True
  2. 2.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🔍 Which is the odd one out? (a) graphite (b) clay pottery (c) glass (d) dry wood
  4. 4.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  6. 6.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  7. 7.🔍 Which is the odd one out? (a) graphite (b) dry wood (c) brass (d) aluminium
  8. 8.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  9. 9.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) iron (d) cotton cloth
  10. 10.Which of these needs a transparent material? (a) a magnifier lens (b) a plug pin (c) a skipping rope (d) a tea flask lining
  11. 11.🧱 Which property matters most for a car windscreen? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  12. 12.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  13. 13.Which of these needs a flexible material? (a) an oven glove (b) a car windscreen (c) a raincoat (d) a skipping rope
  14. 14.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) cotton wool (d) plastic-coated cloth
  15. 15.🔍 Which is the odd one out? (a) steel (b) copper (c) graphite (d) glass
  16. 16.🧱 Which property matters most for a plug pin? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  17. 17.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  18. 18.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) aluminium (d) iron
  19. 19.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  20. 20.🔍 Which is the odd one out? (a) rubber (b) iron (c) brass (d) aluminium
  21. 21.🧱 Which property matters most for a hair band? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  22. 22.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.True or false: a skipping rope needs a heat insulator. (a) True (b) False
  24. 24.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a switch contact (c) a car windscreen (d) a car seat belt
  25. 25.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  26. 26.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  27. 27.🧱 Which property matters most for a window pane? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  28. 28.Which of these needs a flexible material? (a) an oven glove (b) a car seat belt (c) a water tank (d) a boat hull
  29. 29.Which of these needs a flexible material? (a) a window pane (b) a raincoat (c) a yoga mat (d) a roof sheet
  30. 30.Which of these needs a flexible material? (a) a boat hull (b) a car windscreen (c) a hair band (d) a roof sheet
  31. 31.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.Which of these needs a waterproof material? (a) a water tank (b) a switch contact (c) a skipping rope (d) a tea flask lining
  33. 33.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  34. 34.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  35. 35.🧱 Which property matters most for an oven glove? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  36. 36.🧱 Which material is best for a window pane? (a) steel (b) glass (c) brick (d) wood
  37. 37.🧱 Which property matters most for a magnifier lens? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  38. 38.🔍 Which is the odd one out? (a) brass (b) steel (c) cotton cloth (d) iron
  39. 39.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  40. 40.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) copper (d) plastic

Answer key

  1. False
  2. an insulator
  3. graphite
  4. a conductor
  5. waterproof
  6. copper
  7. dry wood
  8. electrical conductor
  9. iron
  10. a magnifier lens
  11. transparent
  12. True
  13. a skipping rope
  14. plastic-coated cloth
  15. glass
  16. electrical conductor
  17. waterproof
  18. wood or plastic
  19. heat insulator
  20. rubber
  21. flexible
  22. a conductor
  23. False
  24. a switch contact
  25. True
  26. steel
  27. transparent
  28. a car seat belt
  29. a yoga mat
  30. a hair band
  31. an insulator
  32. a water tank
  33. flexible
  34. transparent
  35. heat insulator
  36. glass
  37. transparent
  38. cotton cloth
  39. False
  40. plastic

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