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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 173 · 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: a switch contact needs a heat insulator. (a) True (b) False
  2. 2.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  3. 3.🔍 Which is the odd one out? (a) iron (b) aluminium (c) steel (d) cotton cloth
  4. 4.True or false: a water tank needs an electrical conductor. (a) False (b) True
  5. 5.🧱 Which property matters most for a raincoat? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  6. 6.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.Which of these needs a waterproof material? (a) a yoga mat (b) a car seat belt (c) a raincoat (d) a skipping rope
  8. 8.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  9. 9.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  11. 11.🔍 Which is the odd one out? (a) rubber (b) glass (c) iron (d) dry wood
  12. 12.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) copper (d) clay pottery
  13. 13.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) glass (d) copper
  14. 14.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  15. 15.Which of these needs a heat insulator? (a) a water tank (b) an oven glove (c) an umbrella cover (d) a hair band
  16. 16.Which of these needs a waterproof material? (a) a boat hull (b) the core of a wire (c) a window pane (d) a plug pin
  17. 17.Which of these needs a transparent material? (a) a boat hull (b) a skipping rope (c) a window pane (d) a car seat belt
  18. 18.🧱 Which property matters most for a window pane? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  19. 19.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  20. 20.Which of these needs a flexible material? (a) a water tank (b) a yoga mat (c) a window pane (d) an umbrella cover
  21. 21.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  22. 22.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  23. 23.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  24. 24.Which of these needs a flexible material? (a) a water tank (b) a skipping rope (c) a car windscreen (d) a tea flask lining
  25. 25.Which of these needs a waterproof material? (a) an umbrella cover (b) a magnifier lens (c) a hair band (d) the core of a wire
  26. 26.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  27. 27.True or false: a hair band needs a flexible material. (a) True (b) False
  28. 28.🧱 Which property matters most for an oven glove? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  29. 29.Which of these needs an electrical conductor? (a) a raincoat (b) a car windscreen (c) a boat hull (d) the core of a wire
  30. 30.Which of these needs a flexible material? (a) a tea flask lining (b) an umbrella cover (c) a magnifier lens (d) a hair band
  31. 31.True or false: an umbrella cover needs a flexible material. (a) False (b) True
  32. 32.🧱 Which property matters most for a boat hull? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  33. 33.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.Which of these needs a transparent material? (a) an umbrella cover (b) a car windscreen (c) a tea flask lining (d) a raincoat
  35. 35.True or false: a car seat belt needs a heat insulator. (a) False (b) True
  36. 36.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) clay pottery (d) graphite
  38. 38.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  39. 39.True or false: a car seat belt needs a waterproof material. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) aluminium (b) copper (c) plastic (d) graphite

Answer key

  1. False
  2. plastic-coated cloth
  3. cotton cloth
  4. False
  5. waterproof
  6. a conductor
  7. a raincoat
  8. transparent
  9. an insulator
  10. waterproof
  11. iron
  12. clay pottery
  13. copper
  14. transparent
  15. an oven glove
  16. a boat hull
  17. a window pane
  18. transparent
  19. steel
  20. a yoga mat
  21. copper
  22. glass
  23. waterproof
  24. a skipping rope
  25. an umbrella cover
  26. electrical conductor
  27. True
  28. heat insulator
  29. the core of a wire
  30. a hair band
  31. False
  32. waterproof
  33. a conductor
  34. a car windscreen
  35. False
  36. an insulator
  37. graphite
  38. True
  39. False
  40. plastic

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