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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 887 · 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 property matters most for a magnifier lens? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  2. 2.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  3. 3.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
  4. 4.True or false: a skipping rope needs a heat insulator. (a) True (b) False
  5. 5.Which of these needs a flexible material? (a) a car seat belt (b) a spectacle lens (c) a window pane (d) a tea flask lining
  6. 6.True or false: an oven glove needs a heat insulator. (a) True (b) False
  7. 7.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) cotton cloth (d) aluminium
  8. 8.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.Which of these needs a transparent material? (a) a spectacle lens (b) a raincoat (c) a skipping rope (d) a tea flask lining
  10. 10.🧱 Which property matters most for a tea flask lining? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  11. 11.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Which property matters most for a roof sheet? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  13. 13.Which of these needs a heat insulator? (a) a boat hull (b) a spectacle lens (c) an umbrella cover (d) an oven glove
  14. 14.True or false: a water tank needs a transparent material. (a) True (b) False
  15. 15.True or false: a skipping rope needs an electrical conductor. (a) False (b) True
  16. 16.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  17. 17.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  18. 18.🔍 Which is the odd one out? (a) iron (b) rubber (c) plastic (d) clay pottery
  19. 19.🔍 Which is the odd one out? (a) brass (b) plastic (c) aluminium (d) iron
  20. 20.Which of these needs a flexible material? (a) a spectacle lens (b) a hair band (c) a window pane (d) a water tank
  21. 21.Which of these needs an electrical conductor? (a) a switch contact (b) a boat hull (c) a yoga mat (d) a car windscreen
  22. 22.Which of these needs a transparent material? (a) a hair band (b) an umbrella cover (c) a car windscreen (d) a raincoat
  23. 23.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  24. 24.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) plastic (d) graphite
  25. 25.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) brass (d) graphite
  26. 26.True or false: a water tank needs a waterproof material. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) clay pottery (b) brass (c) dry wood (d) cotton cloth
  28. 28.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  29. 29.🧱 Which property matters most for a water tank? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  30. 30.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) copper (d) aluminium
  31. 31.🧱 Which property matters most for a raincoat? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  32. 32.True or false: an oven glove needs a waterproof material. (a) True (b) False
  33. 33.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) glass (d) plastic
  35. 35.🧱 Which property matters most for a plug pin? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  36. 36.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) copper (d) aluminium
  37. 37.🔍 Which is the odd one out? (a) brass (b) copper (c) iron (d) glass
  38. 38.True or false: a hair band needs a flexible material. (a) True (b) False
  39. 39.🔍 Which is the odd one out? (a) brass (b) iron (c) graphite (d) dry wood
  40. 40.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

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

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