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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 339 · 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.True or false: a hair band needs a waterproof material. (a) False (b) True
  2. 2.Which of these needs a heat insulator? (a) an oven glove (b) a car windscreen (c) a magnifier lens (d) an umbrella cover
  3. 3.🧱 Which property matters most for a plug pin? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  4. 4.Which of these needs a flexible material? (a) a switch contact (b) a spectacle lens (c) a skipping rope (d) a water tank
  5. 5.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.Which of these needs a transparent material? (a) a tea flask lining (b) a car windscreen (c) an umbrella cover (d) a boat hull
  7. 7.🧱 Which property matters most for a switch contact? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  8. 8.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  9. 9.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  10. 10.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) rubber (d) glass
  12. 12.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  14. 14.Which of these needs a flexible material? (a) a car seat belt (b) a raincoat (c) a water tank (d) a roof sheet
  15. 15.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  17. 17.True or false: a water tank needs a waterproof material. (a) True (b) False
  18. 18.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) iron (d) brass
  19. 19.🧱 Which property matters most for a hair band? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  20. 20.🔍 Which is the odd one out? (a) iron (b) dry wood (c) copper (d) aluminium
  21. 21.Which of these needs an electrical conductor? (a) a water tank (b) a cooking pot handle (c) a hair band (d) a switch contact
  22. 22.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  23. 23.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.Which of these needs a heat insulator? (a) an umbrella cover (b) a roof sheet (c) a cooking pot handle (d) a skipping rope
  25. 25.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  26. 26.Which of these needs a waterproof material? (a) an oven glove (b) a yoga mat (c) a roof sheet (d) a car seat belt
  27. 27.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  28. 28.🧱 Which property matters most for an umbrella cover? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  29. 29.🔍 Which is the odd one out? (a) iron (b) plastic (c) aluminium (d) steel
  30. 30.Which of these needs an electrical conductor? (a) the core of a wire (b) a window pane (c) a car windscreen (d) a hair band
  31. 31.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  32. 32.🧱 Which property matters most for a skipping rope? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  33. 33.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  34. 34.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  35. 35.True or false: a switch contact needs a transparent material. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) glass (b) iron (c) clay pottery (d) cotton cloth
  37. 37.🔍 Which is the odd one out? (a) steel (b) iron (c) clay pottery (d) graphite
  38. 38.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) copper (d) aluminium
  39. 39.True or false: a window pane needs a transparent material. (a) False (b) True
  40. 40.Which of these needs a waterproof material? (a) a plug pin (b) an oven glove (c) a raincoat (d) a car windscreen

Answer key

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

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