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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 113 · 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 aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  3. 3.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.True or false: a yoga mat needs a heat insulator. (a) False (b) True
  5. 5.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  6. 6.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.Which of these needs a heat insulator? (a) a raincoat (b) an oven glove (c) a skipping rope (d) a boat hull
  8. 8.True or false: an oven glove needs a flexible material. (a) True (b) False
  9. 9.Which of these needs a transparent material? (a) a plug pin (b) a car windscreen (c) the core of a wire (d) a hair band
  10. 10.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  11. 11.Which of these needs a heat insulator? (a) a boat hull (b) a skipping rope (c) the core of a wire (d) a cooking pot handle
  12. 12.🔍 Which is the odd one out? (a) glass (b) plastic (c) graphite (d) dry wood
  13. 13.Which of these needs an electrical conductor? (a) a water tank (b) a switch contact (c) a yoga mat (d) a tea flask lining
  14. 14.🔍 Which is the odd one out? (a) steel (b) iron (c) plastic (d) graphite
  15. 15.Which of these needs a waterproof material? (a) a cooking pot handle (b) an umbrella cover (c) a skipping rope (d) a car seat belt
  16. 16.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) steel (d) glass
  17. 17.🧱 Which property matters most for a roof sheet? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  18. 18.Which of these needs a transparent material? (a) a switch contact (b) a boat hull (c) a spectacle lens (d) an umbrella cover
  19. 19.True or false: a yoga mat needs a transparent material. (a) True (b) False
  20. 20.🧱 Which material is best for a window pane? (a) steel (b) glass (c) brick (d) wood
  21. 21.🧱 Which property matters most for the core of a wire? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  22. 22.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  23. 23.True or false: a spectacle lens needs a waterproof material. (a) True (b) False
  24. 24.Which of these needs a flexible material? (a) a water tank (b) a yoga mat (c) an oven glove (d) a plug pin
  25. 25.🧱 Which property matters most for a window pane? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  26. 26.Which of these needs a flexible material? (a) a car windscreen (b) an umbrella cover (c) a car seat belt (d) a boat hull
  27. 27.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  28. 28.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  29. 29.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  30. 30.True or false: an oven glove needs a heat insulator. (a) False (b) True
  31. 31.Which of these needs a transparent material? (a) a skipping rope (b) a hair band (c) a tea flask lining (d) a window pane
  32. 32.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  33. 33.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) glass (d) clay pottery
  34. 34.Which of these needs a flexible material? (a) a water tank (b) a roof sheet (c) a boat hull (d) a skipping rope
  35. 35.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🔍 Which is the odd one out? (a) iron (b) rubber (c) graphite (d) aluminium
  37. 37.🧱 Which property matters most for a car windscreen? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  38. 38.True or false: a raincoat needs a waterproof material. (a) True (b) False
  39. 39.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) brass (d) rubber
  40. 40.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) plastic-coated cloth (d) cotton wool

Answer key

  1. a conductor
  2. True
  3. an insulator
  4. False
  5. True
  6. an insulator
  7. an oven glove
  8. False
  9. a car windscreen
  10. waterproof
  11. a cooking pot handle
  12. graphite
  13. a switch contact
  14. plastic
  15. an umbrella cover
  16. steel
  17. waterproof
  18. a spectacle lens
  19. False
  20. glass
  21. electrical conductor
  22. wood or plastic
  23. False
  24. a yoga mat
  25. transparent
  26. a car seat belt
  27. True
  28. heat insulator
  29. electrical conductor
  30. True
  31. a window pane
  32. waterproof
  33. aluminium
  34. a skipping rope
  35. an insulator
  36. rubber
  37. transparent
  38. True
  39. brass
  40. plastic-coated cloth

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