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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 42 · 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) iron (b) wood or plastic (c) aluminium (d) copper
  2. 2.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  4. 4.Which of these needs a heat insulator? (a) a boat hull (b) a car seat belt (c) a car windscreen (d) a tea flask lining
  5. 5.Which of these needs a flexible material? (a) a magnifier lens (b) a hair band (c) a spectacle lens (d) a boat hull
  6. 6.True or false: a cooking pot handle needs a transparent material. (a) False (b) True
  7. 7.True or false: a car seat belt needs a flexible material. (a) False (b) True
  8. 8.Which of these needs a flexible material? (a) a water tank (b) a magnifier lens (c) an umbrella cover (d) a car seat belt
  9. 9.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  11. 11.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  12. 12.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  13. 13.🧱 Which property matters most for a plug pin? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  14. 14.🔍 Which is the odd one out? (a) brass (b) steel (c) graphite (d) dry wood
  15. 15.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.True or false: a water tank needs an electrical conductor. (a) True (b) False
  17. 17.🔍 Which is the odd one out? (a) rubber (b) graphite (c) iron (d) aluminium
  18. 18.True or false: a hair band needs a heat insulator. (a) True (b) False
  19. 19.Which of these needs a flexible material? (a) an oven glove (b) a cooking pot handle (c) a switch contact (d) a skipping rope
  20. 20.🧱 Which property matters most for a window pane? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  21. 21.Which of these needs an electrical conductor? (a) a plug pin (b) a window pane (c) an umbrella cover (d) a spectacle lens
  22. 22.Which of these needs a waterproof material? (a) a plug pin (b) a boat hull (c) a car seat belt (d) a skipping rope
  23. 23.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  24. 24.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🔍 Which is the odd one out? (a) iron (b) graphite (c) brass (d) plastic
  26. 26.🧱 Which property matters most for a hair band? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  27. 27.🧱 Which property matters most for a raincoat? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  28. 28.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) glass (d) graphite
  29. 29.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  30. 30.Which of these needs an electrical conductor? (a) an umbrella cover (b) a spectacle lens (c) the core of a wire (d) a boat hull
  31. 31.True or false: a water tank needs a heat insulator. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) plastic (d) steel
  33. 33.Which of these needs a heat insulator? (a) the core of a wire (b) a magnifier lens (c) a cooking pot handle (d) a skipping rope
  34. 34.Which of these needs a waterproof material? (a) a car windscreen (b) a plug pin (c) a water tank (d) a hair band
  35. 35.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) plastic (d) aluminium
  36. 36.🔍 Which is the odd one out? (a) steel (b) graphite (c) aluminium (d) cotton cloth
  37. 37.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  38. 38.True or false: an oven glove needs a transparent material. (a) True (b) False
  39. 39.True or false: a roof sheet needs a flexible material. (a) True (b) False
  40. 40.True or false: a water tank needs a waterproof material. (a) False (b) True

Answer key

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

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