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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 151 · 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 flexible material? (a) an umbrella cover (b) a raincoat (c) a water tank (d) a car seat belt
  2. 2.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  3. 3.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) cotton wool (d) plastic-coated cloth
  4. 4.True or false: a window pane needs a transparent material. (a) True (b) False
  5. 5.🔍 Which is the odd one out? (a) steel (b) copper (c) aluminium (d) glass
  6. 6.🧱 Which property matters most for the core of a wire? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  7. 7.Which of these needs a transparent material? (a) a spectacle lens (b) a plug pin (c) an umbrella cover (d) a boat hull
  8. 8.🧱 Which property matters most for a yoga mat? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  9. 9.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  10. 10.Which of these needs a waterproof material? (a) a magnifier lens (b) a car windscreen (c) a tea flask lining (d) an umbrella cover
  11. 11.Which of these needs a flexible material? (a) an umbrella cover (b) a hair band (c) a car windscreen (d) a plug pin
  12. 12.Which of these needs a transparent material? (a) an oven glove (b) a magnifier lens (c) a cooking pot handle (d) a boat hull
  13. 13.Which of these needs a waterproof material? (a) a skipping rope (b) a plug pin (c) the core of a wire (d) a raincoat
  14. 14.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🔍 Which is the odd one out? (a) brass (b) steel (c) dry wood (d) aluminium
  16. 16.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) cotton cloth (d) graphite
  17. 17.True or false: an umbrella cover needs an electrical conductor. (a) False (b) True
  18. 18.True or false: the core of a wire needs a transparent material. (a) True (b) False
  19. 19.🧱 Which property matters most for a water tank? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  20. 20.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) graphite (d) iron
  21. 21.True or false: a raincoat needs a waterproof material. (a) True (b) False
  22. 22.🔍 Which is the odd one out? (a) rubber (b) graphite (c) brass (d) copper
  23. 23.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  24. 24.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Which material is best for a window pane? (a) glass (b) wood (c) brick (d) steel
  27. 27.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) rubber (d) glass
  28. 28.Which of these needs an electrical conductor? (a) a raincoat (b) a window pane (c) a boat hull (d) the core of a wire
  29. 29.🔍 Which is the odd one out? (a) iron (b) steel (c) aluminium (d) plastic
  30. 30.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.True or false: a spectacle lens needs a flexible material. (a) False (b) True
  33. 33.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) copper (d) brass
  34. 34.True or false: a water tank needs a waterproof material. (a) False (b) True
  35. 35.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  36. 36.🧱 Which property matters most for a car windscreen? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  37. 37.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  38. 38.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🧱 Which property matters most for a raincoat? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  40. 40.Which of these needs a heat insulator? (a) a magnifier lens (b) a car windscreen (c) a car seat belt (d) an oven glove

Answer key

  1. a car seat belt
  2. waterproof
  3. plastic-coated cloth
  4. True
  5. glass
  6. electrical conductor
  7. a spectacle lens
  8. flexible
  9. False
  10. an umbrella cover
  11. a hair band
  12. a magnifier lens
  13. a raincoat
  14. an insulator
  15. dry wood
  16. graphite
  17. False
  18. False
  19. waterproof
  20. clay pottery
  21. True
  22. rubber
  23. waterproof
  24. a conductor
  25. an insulator
  26. glass
  27. steel
  28. the core of a wire
  29. plastic
  30. a conductor
  31. an insulator
  32. False
  33. cotton cloth
  34. True
  35. heat insulator
  36. transparent
  37. electrical conductor
  38. a conductor
  39. waterproof
  40. an oven glove

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