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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 242 · 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 is the odd one out? (a) iron (b) aluminium (c) plastic (d) graphite
  2. 2.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) iron (d) rubber
  4. 4.🔍 Which is the odd one out? (a) glass (b) graphite (c) plastic (d) rubber
  5. 5.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) iron (d) aluminium
  6. 6.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.True or false: a water tank needs a waterproof material. (a) False (b) True
  8. 8.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  9. 9.🔍 Which is the odd one out? (a) glass (b) dry wood (c) brass (d) clay pottery
  10. 10.Which of these needs an electrical conductor? (a) a raincoat (b) a yoga mat (c) the core of a wire (d) a tea flask lining
  11. 11.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  13. 13.Which of these needs a heat insulator? (a) a plug pin (b) an oven glove (c) a car seat belt (d) the core of a wire
  14. 14.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.True or false: an oven glove needs a transparent material. (a) True (b) False
  17. 17.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  18. 18.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.Which of these needs a flexible material? (a) a cooking pot handle (b) a boat hull (c) a skipping rope (d) a tea flask lining
  20. 20.Which of these needs a transparent material? (a) a switch contact (b) a spectacle lens (c) a tea flask lining (d) a raincoat
  21. 21.🧱 Which material is best for a window pane? (a) brick (b) steel (c) glass (d) wood
  22. 22.Which of these needs a waterproof material? (a) an oven glove (b) a tea flask lining (c) a yoga mat (d) a water tank
  23. 23.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) paper (d) cardboard
  24. 24.True or false: a car seat belt needs a flexible material. (a) True (b) False
  25. 25.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.Which of these needs a heat insulator? (a) a tea flask lining (b) a water tank (c) a yoga mat (d) a boat hull
  27. 27.🧱 Which property matters most for an oven glove? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  28. 28.Which of these needs a transparent material? (a) a car seat belt (b) a raincoat (c) a window pane (d) a boat hull
  29. 29.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  30. 30.Which of these needs a flexible material? (a) a car seat belt (b) a raincoat (c) a water tank (d) the core of a wire
  31. 31.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  32. 32.Which of these needs a heat insulator? (a) a cooking pot handle (b) a water tank (c) a switch contact (d) a magnifier lens
  33. 33.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🔍 Which is the odd one out? (a) iron (b) graphite (c) clay pottery (d) brass
  35. 35.Which of these needs a waterproof material? (a) a roof sheet (b) a magnifier lens (c) a plug pin (d) a window pane
  36. 36.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  37. 37.Which of these needs an electrical conductor? (a) a switch contact (b) a hair band (c) a boat hull (d) an umbrella cover
  38. 38.🔍 Which is the odd one out? (a) graphite (b) copper (c) cotton cloth (d) aluminium
  39. 39.🧱 Which property matters most for a roof sheet? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  40. 40.True or false: a magnifier lens needs a waterproof material. (a) True (b) False

Answer key

  1. plastic
  2. a conductor
  3. iron
  4. graphite
  5. wood or plastic
  6. a conductor
  7. True
  8. flexible
  9. brass
  10. the core of a wire
  11. an insulator
  12. copper
  13. an oven glove
  14. a conductor
  15. an insulator
  16. False
  17. transparent
  18. an insulator
  19. a skipping rope
  20. a spectacle lens
  21. glass
  22. a water tank
  23. plastic-coated cloth
  24. True
  25. a conductor
  26. a tea flask lining
  27. heat insulator
  28. a window pane
  29. waterproof
  30. a car seat belt
  31. steel
  32. a cooking pot handle
  33. an insulator
  34. clay pottery
  35. a roof sheet
  36. electrical conductor
  37. a switch contact
  38. cotton cloth
  39. waterproof
  40. False

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