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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 776 · 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: an oven glove needs a transparent material. (a) True (b) False
  2. 2.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.Which of these needs a waterproof material? (a) a car windscreen (b) the core of a wire (c) a car seat belt (d) a boat hull
  4. 4.🔍 Which is the odd one out? (a) brass (b) copper (c) steel (d) dry wood
  5. 5.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) glass (d) rubber
  6. 6.Which of these needs an electrical conductor? (a) an oven glove (b) a roof sheet (c) a hair band (d) the core of a wire
  7. 7.🧱 Which property matters most for a yoga mat? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  8. 8.Which of these needs a transparent material? (a) a raincoat (b) a magnifier lens (c) an oven glove (d) a cooking pot handle
  9. 9.🧱 Which property matters most for a boat hull? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  10. 10.Which of these needs an electrical conductor? (a) a raincoat (b) a switch contact (c) a tea flask lining (d) a spectacle lens
  11. 11.True or false: a raincoat needs a heat insulator. (a) False (b) True
  12. 12.🧱 Which property matters most for the core of a wire? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  13. 13.Which of these needs a heat insulator? (a) a magnifier lens (b) a yoga mat (c) a cooking pot handle (d) a switch contact
  14. 14.True or false: a water tank needs a waterproof material. (a) True (b) False
  15. 15.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  16. 16.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  18. 18.🧱 Which property matters most for a switch contact? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  19. 19.Which of these needs a flexible material? (a) a boat hull (b) a tea flask lining (c) a car seat belt (d) an oven glove
  20. 20.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.Which of these needs a heat insulator? (a) a boat hull (b) a skipping rope (c) an oven glove (d) a roof sheet
  22. 22.Which of these needs a waterproof material? (a) an oven glove (b) a skipping rope (c) a water tank (d) a cooking pot handle
  23. 23.True or false: a switch contact needs a flexible material. (a) False (b) True
  24. 24.True or false: a car seat belt needs an electrical conductor. (a) True (b) False
  25. 25.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) cotton cloth (d) rubber
  28. 28.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  29. 29.🧱 Which property matters most for a hair band? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  30. 30.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.True or false: an oven glove needs a heat insulator. (a) True (b) False
  32. 32.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  33. 33.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) rubber (d) dry wood
  34. 34.🧱 Which property matters most for a water tank? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  35. 35.🔍 Which is the odd one out? (a) plastic (b) steel (c) glass (d) clay pottery
  36. 36.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.True or false: a plug pin needs a waterproof material. (a) True (b) False
  38. 38.Which of these needs a transparent material? (a) a spectacle lens (b) a switch contact (c) a water tank (d) a roof sheet
  39. 39.🔍 Which is the odd one out? (a) iron (b) plastic (c) copper (d) steel
  40. 40.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) aluminium (d) glass

Answer key

  1. False
  2. a conductor
  3. a boat hull
  4. dry wood
  5. steel
  6. the core of a wire
  7. flexible
  8. a magnifier lens
  9. waterproof
  10. a switch contact
  11. False
  12. electrical conductor
  13. a cooking pot handle
  14. True
  15. plastic-coated cloth
  16. a conductor
  17. waterproof
  18. electrical conductor
  19. a car seat belt
  20. an insulator
  21. an oven glove
  22. a water tank
  23. False
  24. False
  25. an insulator
  26. True
  27. copper
  28. glass
  29. flexible
  30. an insulator
  31. True
  32. False
  33. graphite
  34. waterproof
  35. steel
  36. a conductor
  37. False
  38. a spectacle lens
  39. plastic
  40. aluminium

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