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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 273 · 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 material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) aluminium (d) iron
  2. 2.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  3. 3.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.Which of these needs a waterproof material? (a) a plug pin (b) a hair band (c) a raincoat (d) a car windscreen
  6. 6.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  7. 7.🔍 Which is the odd one out? (a) plastic (b) rubber (c) dry wood (d) iron
  8. 8.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  9. 9.🧱 Which property matters most for a boat hull? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  10. 10.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  11. 11.Which of these needs a flexible material? (a) a hair band (b) a magnifier lens (c) the core of a wire (d) a window pane
  12. 12.Which of these needs a flexible material? (a) a water tank (b) a window pane (c) a skipping rope (d) an umbrella cover
  13. 13.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  14. 14.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.True or false: a spectacle lens needs a waterproof material. (a) True (b) False
  16. 16.Which of these needs an electrical conductor? (a) an umbrella cover (b) a tea flask lining (c) a skipping rope (d) the core of a wire
  17. 17.True or false: a skipping rope needs a heat insulator. (a) True (b) False
  18. 18.🔍 Which is the odd one out? (a) copper (b) glass (c) graphite (d) aluminium
  19. 19.Which of these needs a flexible material? (a) a switch contact (b) an oven glove (c) a roof sheet (d) a yoga mat
  20. 20.Which of these needs a flexible material? (a) a window pane (b) an umbrella cover (c) a car seat belt (d) a plug pin
  21. 21.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  22. 22.Which of these needs a waterproof material? (a) the core of a wire (b) an umbrella cover (c) a switch contact (d) a window pane
  23. 23.🔍 Which is the odd one out? (a) iron (b) copper (c) brass (d) dry wood
  24. 24.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  25. 25.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.True or false: a raincoat needs a transparent material. (a) True (b) False
  27. 27.🧱 Which property matters most for a roof sheet? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  28. 28.🔍 Which is the odd one out? (a) steel (b) graphite (c) aluminium (d) cotton cloth
  29. 29.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  30. 30.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) dry wood (d) glass
  31. 31.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🔍 Which is the odd one out? (a) plastic (b) rubber (c) cotton cloth (d) aluminium
  33. 33.🔍 Which is the odd one out? (a) clay pottery (b) graphite (c) cotton cloth (d) dry wood
  34. 34.True or false: a boat hull needs a heat insulator. (a) True (b) False
  35. 35.Which of these needs a waterproof material? (a) a yoga mat (b) an oven glove (c) a boat hull (d) a plug pin
  36. 36.True or false: a boat hull needs a waterproof material. (a) False (b) True
  37. 37.Which of these needs a heat insulator? (a) a hair band (b) a boat hull (c) a window pane (d) a tea flask lining
  38. 38.🧱 Which property matters most for a hair band? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  39. 39.🧱 Which property matters most for a water tank? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  40. 40.True or false: a yoga mat needs a flexible material. (a) True (b) False

Answer key

  1. wood or plastic
  2. flexible
  3. a conductor
  4. an insulator
  5. a raincoat
  6. waterproof
  7. iron
  8. steel
  9. waterproof
  10. waterproof
  11. a hair band
  12. a skipping rope
  13. glass
  14. a conductor
  15. False
  16. the core of a wire
  17. False
  18. glass
  19. a yoga mat
  20. a car seat belt
  21. plastic-coated cloth
  22. an umbrella cover
  23. dry wood
  24. False
  25. a conductor
  26. False
  27. waterproof
  28. cotton cloth
  29. copper
  30. copper
  31. a conductor
  32. aluminium
  33. graphite
  34. False
  35. a boat hull
  36. True
  37. a tea flask lining
  38. flexible
  39. waterproof
  40. True

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