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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 140 · 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 umbrella cover needs a flexible material. (a) False (b) True
  2. 2.🧱 Which property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  3. 3.🔍 Which is the odd one out? (a) rubber (b) graphite (c) aluminium (d) iron
  4. 4.True or false: a raincoat needs a flexible material. (a) True (b) False
  5. 5.True or false: a car seat belt needs a flexible material. (a) True (b) False
  6. 6.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  7. 7.Which of these needs a waterproof material? (a) a yoga mat (b) a plug pin (c) an umbrella cover (d) a window pane
  8. 8.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  9. 9.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  10. 10.True or false: a water tank needs a heat insulator. (a) True (b) False
  11. 11.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  12. 12.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.Which of these needs an electrical conductor? (a) a roof sheet (b) a window pane (c) a switch contact (d) a yoga mat
  14. 14.Which of these needs a heat insulator? (a) a raincoat (b) a roof sheet (c) a cooking pot handle (d) a water tank
  15. 15.Which of these needs a flexible material? (a) the core of a wire (b) a window pane (c) a boat hull (d) a skipping rope
  16. 16.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  17. 17.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  18. 18.True or false: a skipping rope needs a flexible material. (a) True (b) False
  19. 19.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) aluminium (d) glass
  20. 20.True or false: a window pane needs a heat insulator. (a) True (b) False
  21. 21.🧱 Which property matters most for a switch contact? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  22. 22.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.Which of these needs a transparent material? (a) an oven glove (b) a tea flask lining (c) a magnifier lens (d) a skipping rope
  25. 25.True or false: a raincoat needs a waterproof material. (a) False (b) True
  26. 26.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  28. 28.Which of these needs a transparent material? (a) an umbrella cover (b) a switch contact (c) a car windscreen (d) a roof sheet
  29. 29.🔍 Which is the odd one out? (a) steel (b) glass (c) brass (d) aluminium
  30. 30.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  31. 31.🔍 Which is the odd one out? (a) copper (b) aluminium (c) dry wood (d) graphite
  32. 32.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  33. 33.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  35. 35.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  36. 36.Which of these needs a transparent material? (a) a tea flask lining (b) a hair band (c) a window pane (d) a roof sheet
  37. 37.Which of these needs a waterproof material? (a) an oven glove (b) a spectacle lens (c) a window pane (d) a roof sheet
  38. 38.🧱 Which property matters most for a spectacle lens? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  39. 39.Which of these needs a waterproof material? (a) a cooking pot handle (b) a raincoat (c) a hair band (d) a magnifier lens
  40. 40.🔍 Which is the odd one out? (a) brass (b) plastic (c) graphite (d) copper

Answer key

  1. False
  2. flexible
  3. rubber
  4. False
  5. True
  6. waterproof
  7. an umbrella cover
  8. False
  9. steel
  10. False
  11. wood or plastic
  12. a conductor
  13. a switch contact
  14. a cooking pot handle
  15. a skipping rope
  16. heat insulator
  17. glass
  18. True
  19. aluminium
  20. False
  21. electrical conductor
  22. an insulator
  23. an insulator
  24. a magnifier lens
  25. True
  26. a conductor
  27. True
  28. a car windscreen
  29. glass
  30. electrical conductor
  31. dry wood
  32. heat insulator
  33. a conductor
  34. plastic-coated cloth
  35. flexible
  36. a window pane
  37. a roof sheet
  38. transparent
  39. a raincoat
  40. plastic

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