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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 983 · 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 property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  2. 2.🧱 Which property matters most for a car seat belt? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  3. 3.Which of these needs a heat insulator? (a) a magnifier lens (b) a plug pin (c) an oven glove (d) a roof sheet
  4. 4.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  5. 5.Which of these needs a transparent material? (a) a roof sheet (b) an oven glove (c) a cooking pot handle (d) a spectacle lens
  6. 6.Which of these needs a flexible material? (a) a raincoat (b) a car seat belt (c) a spectacle lens (d) an oven glove
  7. 7.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which property matters most for a roof sheet? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  9. 9.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  11. 11.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  12. 12.Which of these needs a waterproof material? (a) a boat hull (b) a magnifier lens (c) a window pane (d) a plug pin
  13. 13.🧱 Which material is best for a window pane? (a) glass (b) wood (c) steel (d) brick
  14. 14.Which of these needs a waterproof material? (a) the core of a wire (b) a raincoat (c) a switch contact (d) a plug pin
  15. 15.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.True or false: the core of a wire needs a transparent material. (a) True (b) False
  17. 17.True or false: a car seat belt needs a flexible material. (a) True (b) False
  18. 18.🧱 Which property matters most for a water tank? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  19. 19.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) plastic-coated cloth (d) cardboard
  20. 20.🔍 Which is the odd one out? (a) clay pottery (b) graphite (c) copper (d) aluminium
  21. 21.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.True or false: a boat hull needs a waterproof material. (a) True (b) False
  23. 23.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🔍 Which is the odd one out? (a) aluminium (b) brass (c) graphite (d) dry wood
  25. 25.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  26. 26.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  27. 27.🔍 Which is the odd one out? (a) iron (b) graphite (c) rubber (d) brass
  28. 28.Which of these needs a flexible material? (a) a water tank (b) a raincoat (c) a yoga mat (d) a plug pin
  29. 29.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) cotton cloth (d) iron
  30. 30.True or false: a skipping rope needs a transparent material. (a) False (b) True
  31. 31.🧱 Which property matters most for a spectacle lens? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  32. 32.🧱 Which property matters most for a raincoat? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  33. 33.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  35. 35.True or false: a plug pin needs a waterproof material. (a) True (b) False
  36. 36.True or false: a water tank needs a heat insulator. (a) True (b) False
  37. 37.Which of these needs an electrical conductor? (a) a skipping rope (b) a plug pin (c) an umbrella cover (d) a hair band
  38. 38.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  39. 39.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) graphite (d) glass
  40. 40.True or false: the core of a wire needs an electrical conductor. (a) False (b) True

Answer key

  1. flexible
  2. flexible
  3. an oven glove
  4. waterproof
  5. a spectacle lens
  6. a car seat belt
  7. an insulator
  8. waterproof
  9. a conductor
  10. False
  11. steel
  12. a boat hull
  13. glass
  14. a raincoat
  15. an insulator
  16. False
  17. True
  18. waterproof
  19. plastic-coated cloth
  20. clay pottery
  21. an insulator
  22. True
  23. a conductor
  24. dry wood
  25. True
  26. electrical conductor
  27. rubber
  28. a yoga mat
  29. iron
  30. False
  31. transparent
  32. waterproof
  33. an insulator
  34. True
  35. False
  36. False
  37. a plug pin
  38. False
  39. graphite
  40. True

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