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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 445 · 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.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Which property matters most for a hair band? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  3. 3.🔍 Which is the odd one out? (a) iron (b) glass (c) rubber (d) cotton cloth
  4. 4.🔍 Which is the odd one out? (a) copper (b) brass (c) plastic (d) iron
  5. 5.Which of these needs a waterproof material? (a) a car windscreen (b) an oven glove (c) a car seat belt (d) a raincoat
  6. 6.True or false: a skipping rope needs a transparent material. (a) True (b) False
  7. 7.True or false: an umbrella cover needs a flexible material. (a) False (b) True
  8. 8.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  9. 9.True or false: a skipping rope needs a flexible material. (a) False (b) True
  10. 10.🧱 Which property matters most for a skipping rope? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  11. 11.🔍 Which is the odd one out? (a) glass (b) aluminium (c) plastic (d) dry wood
  12. 12.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  13. 13.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  15. 15.🔍 Which is the odd one out? (a) iron (b) aluminium (c) rubber (d) copper
  16. 16.🧱 Which property matters most for a car seat belt? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  17. 17.🔍 Which is the odd one out? (a) glass (b) rubber (c) copper (d) dry wood
  18. 18.Which of these needs a flexible material? (a) a hair band (b) a plug pin (c) an oven glove (d) a car windscreen
  19. 19.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  20. 20.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  21. 21.Which of these needs a flexible material? (a) a magnifier lens (b) an umbrella cover (c) a skipping rope (d) a raincoat
  22. 22.Which of these needs a heat insulator? (a) the core of a wire (b) a plug pin (c) a tea flask lining (d) an umbrella cover
  23. 23.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) plastic (d) glass
  24. 24.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  25. 25.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
  27. 27.🧱 Which property matters most for a switch contact? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  28. 28.Which of these needs an electrical conductor? (a) a water tank (b) a magnifier lens (c) a roof sheet (d) a switch contact
  29. 29.True or false: a raincoat needs a waterproof material. (a) True (b) False
  30. 30.🔍 Which is the odd one out? (a) dry wood (b) brass (c) iron (d) aluminium
  31. 31.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  32. 32.🧱 Which property matters most for an umbrella cover? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  33. 33.🔍 Which is the odd one out? (a) steel (b) graphite (c) glass (d) aluminium
  34. 34.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  36. 36.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.True or false: a hair band needs a flexible material. (a) False (b) True
  38. 38.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  39. 39.True or false: an oven glove needs a flexible material. (a) True (b) False
  40. 40.Which of these needs a waterproof material? (a) a water tank (b) a car windscreen (c) a yoga mat (d) a car seat belt

Answer key

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

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