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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 961 · 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 of these needs a heat insulator? (a) an oven glove (b) an umbrella cover (c) a plug pin (d) a yoga mat
  2. 2.🧱 Which material is best for a window pane? (a) steel (b) wood (c) glass (d) brick
  3. 3.🧱 Which property matters most for a yoga mat? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  4. 4.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Which property matters most for a window pane? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  6. 6.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) steel (d) clay pottery
  7. 7.🧱 Which property matters most for an oven glove? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  8. 8.Which of these needs a waterproof material? (a) a car seat belt (b) a water tank (c) an oven glove (d) a magnifier lens
  9. 9.Which of these needs an electrical conductor? (a) a car seat belt (b) the core of a wire (c) a hair band (d) a magnifier lens
  10. 10.🧱 Which property matters most for a water tank? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  11. 11.True or false: a switch contact needs a flexible material. (a) False (b) True
  12. 12.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  14. 14.🔍 Which is the odd one out? (a) plastic (b) rubber (c) graphite (d) cotton cloth
  15. 15.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.Which of these needs a heat insulator? (a) a window pane (b) a car windscreen (c) a switch contact (d) a cooking pot handle
  18. 18.🔍 Which is the odd one out? (a) graphite (b) steel (c) iron (d) dry wood
  19. 19.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  21. 21.Which of these needs a heat insulator? (a) a skipping rope (b) a tea flask lining (c) a magnifier lens (d) a roof sheet
  22. 22.Which of these needs a transparent material? (a) a spectacle lens (b) a roof sheet (c) a boat hull (d) the core of a wire
  23. 23.🧱 Which property matters most for a skipping rope? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  24. 24.Which of these needs a flexible material? (a) a tea flask lining (b) a boat hull (c) an umbrella cover (d) a skipping rope
  25. 25.🧱 Which property matters most for a hair band? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  26. 26.🧱 Which property matters most for a plug pin? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  27. 27.🔍 Which is the odd one out? (a) aluminium (b) glass (c) cotton cloth (d) dry wood
  28. 28.Which of these needs a flexible material? (a) a raincoat (b) a boat hull (c) a hair band (d) an oven glove
  29. 29.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  30. 30.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  31. 31.🧱 Which property matters most for an umbrella cover? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  32. 32.True or false: a boat hull needs a waterproof material. (a) False (b) True
  33. 33.🔍 Which is the odd one out? (a) plastic (b) glass (c) iron (d) dry wood
  34. 34.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  35. 35.True or false: a car seat belt needs a flexible material. (a) True (b) False
  36. 36.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  37. 37.🧱 Which property matters most for a car windscreen? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  38. 38.Which of these needs a flexible material? (a) the core of a wire (b) a yoga mat (c) a raincoat (d) a window pane
  39. 39.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.True or false: an umbrella cover needs a waterproof material. (a) True (b) False

Answer key

  1. an oven glove
  2. glass
  3. flexible
  4. a conductor
  5. transparent
  6. steel
  7. heat insulator
  8. a water tank
  9. the core of a wire
  10. waterproof
  11. False
  12. an insulator
  13. plastic-coated cloth
  14. graphite
  15. an insulator
  16. a conductor
  17. a cooking pot handle
  18. dry wood
  19. an insulator
  20. copper
  21. a tea flask lining
  22. a spectacle lens
  23. flexible
  24. a skipping rope
  25. flexible
  26. electrical conductor
  27. aluminium
  28. a hair band
  29. True
  30. waterproof
  31. waterproof
  32. True
  33. iron
  34. True
  35. True
  36. waterproof
  37. transparent
  38. a yoga mat
  39. a conductor
  40. True

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