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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 296 · 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 boat hull needs a waterproof material. (a) True (b) False
  2. 2.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  3. 3.🔍 Which is the odd one out? (a) copper (b) clay pottery (c) cotton cloth (d) dry wood
  4. 4.🧱 Which property matters most for a hair band? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  5. 5.🧱 Which property matters most for a skipping rope? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  6. 6.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  7. 7.🔍 Which is the odd one out? (a) glass (b) rubber (c) cotton cloth (d) steel
  8. 8.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  9. 9.🔍 Which is the odd one out? (a) brass (b) steel (c) clay pottery (d) aluminium
  10. 10.True or false: a car seat belt needs a flexible material. (a) False (b) True
  11. 11.Which of these needs a transparent material? (a) a cooking pot handle (b) a window pane (c) a raincoat (d) a skipping rope
  12. 12.Which of these needs a flexible material? (a) a magnifier lens (b) a car seat belt (c) a water tank (d) an oven glove
  13. 13.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) rubber (d) glass
  14. 14.Which of these needs a waterproof material? (a) an umbrella cover (b) a car windscreen (c) a magnifier lens (d) a skipping rope
  15. 15.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.Which of these needs a flexible material? (a) a water tank (b) an umbrella cover (c) a yoga mat (d) the core of a wire
  17. 17.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.Which of these needs an electrical conductor? (a) the core of a wire (b) a roof sheet (c) an umbrella cover (d) a hair band
  19. 19.True or false: an oven glove needs a waterproof material. (a) True (b) False
  20. 20.Which of these needs a waterproof material? (a) a car windscreen (b) an oven glove (c) a plug pin (d) a boat hull
  21. 21.Which of these needs a heat insulator? (a) a hair band (b) a plug pin (c) an oven glove (d) a raincoat
  22. 22.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) aluminium (d) dry wood
  23. 23.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.True or false: a yoga mat needs a flexible material. (a) True (b) False
  25. 25.🧱 Which property matters most for an oven glove? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  26. 26.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) plastic (d) graphite
  27. 27.Which of these needs a waterproof material? (a) a cooking pot handle (b) the core of a wire (c) a car seat belt (d) a water tank
  28. 28.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  29. 29.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  30. 30.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.Which of these needs a heat insulator? (a) a cooking pot handle (b) a spectacle lens (c) a switch contact (d) a car seat belt
  32. 32.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) iron (d) brass
  33. 33.🧱 Which property matters most for a window pane? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  34. 34.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  35. 35.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  37. 37.🔍 Which is the odd one out? (a) graphite (b) glass (c) steel (d) copper
  38. 38.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.True or false: a tea flask lining needs an electrical conductor. (a) True (b) False
  40. 40.True or false: a raincoat needs a waterproof material. (a) True (b) False

Answer key

  1. True
  2. True
  3. copper
  4. flexible
  5. flexible
  6. wood or plastic
  7. steel
  8. plastic-coated cloth
  9. clay pottery
  10. True
  11. a window pane
  12. a car seat belt
  13. copper
  14. an umbrella cover
  15. a conductor
  16. a yoga mat
  17. a conductor
  18. the core of a wire
  19. False
  20. a boat hull
  21. an oven glove
  22. aluminium
  23. an insulator
  24. True
  25. heat insulator
  26. graphite
  27. a water tank
  28. True
  29. True
  30. a conductor
  31. a cooking pot handle
  32. plastic
  33. transparent
  34. True
  35. an insulator
  36. flexible
  37. glass
  38. an insulator
  39. False
  40. True

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