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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 172 · 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 raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  2. 2.🔍 Which is the odd one out? (a) graphite (b) rubber (c) steel (d) aluminium
  3. 3.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) cotton cloth (d) copper
  5. 5.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  6. 6.🧱 Which property matters most for a raincoat? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  7. 7.🔍 Which is the odd one out? (a) iron (b) aluminium (c) clay pottery (d) graphite
  8. 8.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) rubber (d) glass
  9. 9.🧱 Which property matters most for a skipping rope? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  10. 10.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  11. 11.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.Which of these needs a transparent material? (a) a plug pin (b) a window pane (c) a water tank (d) a tea flask lining
  13. 13.Which of these needs a heat insulator? (a) an oven glove (b) a boat hull (c) a water tank (d) a magnifier lens
  14. 14.True or false: a roof sheet needs a flexible material. (a) False (b) True
  15. 15.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  16. 16.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.Which of these needs a waterproof material? (a) a car seat belt (b) a cooking pot handle (c) a boat hull (d) a window pane
  19. 19.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  20. 20.Which of these needs a heat insulator? (a) a yoga mat (b) an umbrella cover (c) a raincoat (d) a tea flask lining
  21. 21.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) cotton cloth (d) steel
  22. 22.Which of these needs a flexible material? (a) a magnifier lens (b) a plug pin (c) an oven glove (d) a car seat belt
  23. 23.Which of these needs a waterproof material? (a) a car windscreen (b) a cooking pot handle (c) the core of a wire (d) a raincoat
  24. 24.🧱 Which property matters most for a hair band? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  25. 25.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  26. 26.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  27. 27.Which of these needs a transparent material? (a) a car windscreen (b) a hair band (c) an oven glove (d) a roof sheet
  28. 28.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) brass (d) glass
  29. 29.🔍 Which is the odd one out? (a) aluminium (b) steel (c) iron (d) glass
  30. 30.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.Which of these needs a flexible material? (a) a hair band (b) an umbrella cover (c) a switch contact (d) an oven glove
  32. 32.True or false: the core of a wire needs a flexible material. (a) True (b) False
  33. 33.🔍 Which is the odd one out? (a) glass (b) aluminium (c) plastic (d) cotton cloth
  34. 34.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) steel (d) graphite
  37. 37.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  38. 38.True or false: a boat hull needs a heat insulator. (a) True (b) False
  39. 39.True or false: a car seat belt needs an electrical conductor. (a) False (b) True
  40. 40.Which of these needs a heat insulator? (a) a car seat belt (b) a raincoat (c) a cooking pot handle (d) a hair band

Answer key

  1. plastic-coated cloth
  2. rubber
  3. a conductor
  4. copper
  5. transparent
  6. waterproof
  7. clay pottery
  8. steel
  9. flexible
  10. flexible
  11. a conductor
  12. a window pane
  13. an oven glove
  14. False
  15. glass
  16. an insulator
  17. a conductor
  18. a boat hull
  19. copper
  20. a tea flask lining
  21. steel
  22. a car seat belt
  23. a raincoat
  24. flexible
  25. heat insulator
  26. False
  27. a car windscreen
  28. brass
  29. glass
  30. an insulator
  31. a hair band
  32. False
  33. aluminium
  34. an insulator
  35. a conductor
  36. cotton cloth
  37. True
  38. False
  39. False
  40. a cooking pot handle

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