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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 881 · 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.

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

Answer key

  1. a window pane
  2. an insulator
  3. an insulator
  4. False
  5. True
  6. False
  7. False
  8. flexible
  9. waterproof
  10. a conductor
  11. iron
  12. wood or plastic
  13. waterproof
  14. brass
  15. heat insulator
  16. plastic-coated cloth
  17. waterproof
  18. steel
  19. a conductor
  20. flexible
  21. a tea flask lining
  22. a plug pin
  23. rubber
  24. glass
  25. a skipping rope
  26. False
  27. True
  28. False
  29. flexible
  30. dry wood
  31. False
  32. a yoga mat
  33. True
  34. True
  35. heat insulator
  36. a conductor
  37. copper
  38. a conductor
  39. True
  40. a boat hull

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