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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 913 · 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) False (b) True
  2. 2.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) iron (d) copper
  4. 4.🔍 Which is the odd one out? (a) dry wood (b) iron (c) glass (d) plastic
  5. 5.🔍 Which is the odd one out? (a) aluminium (b) brass (c) clay pottery (d) iron
  6. 6.True or false: a hair band needs an electrical conductor. (a) True (b) False
  7. 7.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.Which of these needs a flexible material? (a) an oven glove (b) a spectacle lens (c) a car seat belt (d) a car windscreen
  9. 9.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  10. 10.Which of these needs a flexible material? (a) a tea flask lining (b) a raincoat (c) a water tank (d) a yoga mat
  11. 11.True or false: a hair band needs a flexible material. (a) False (b) True
  12. 12.🧱 Which property matters most for a hair band? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  13. 13.Which of these needs a waterproof material? (a) an umbrella cover (b) a cooking pot handle (c) a magnifier lens (d) a car windscreen
  14. 14.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  15. 15.🔍 Which is the odd one out? (a) steel (b) plastic (c) copper (d) iron
  16. 16.🔍 Which is the odd one out? (a) copper (b) glass (c) plastic (d) rubber
  17. 17.Which of these needs an electrical conductor? (a) a car seat belt (b) a boat hull (c) an umbrella cover (d) a switch contact
  18. 18.True or false: a spectacle lens needs a heat insulator. (a) True (b) False
  19. 19.Which of these needs a transparent material? (a) an oven glove (b) an umbrella cover (c) a spectacle lens (d) a yoga mat
  20. 20.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  21. 21.True or false: a water tank needs a heat insulator. (a) True (b) False
  22. 22.Which of these needs a transparent material? (a) a window pane (b) a yoga mat (c) a roof sheet (d) the core of a wire
  23. 23.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  24. 24.True or false: a yoga mat needs a flexible material. (a) False (b) True
  25. 25.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  26. 26.🧱 Which property matters most for an umbrella cover? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  27. 27.True or false: an oven glove needs a heat insulator. (a) True (b) False
  28. 28.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) brass (d) iron
  30. 30.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  31. 31.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  32. 32.Which of these needs a heat insulator? (a) a hair band (b) a yoga mat (c) an oven glove (d) a switch contact
  33. 33.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Which property matters most for a window pane? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  35. 35.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  37. 37.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  38. 38.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  39. 39.Which of these needs an electrical conductor? (a) an umbrella cover (b) an oven glove (c) a plug pin (d) a car windscreen
  40. 40.🧱 Which property matters most for a yoga mat? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator

Answer key

  1. False
  2. a conductor
  3. wood or plastic
  4. iron
  5. clay pottery
  6. False
  7. an insulator
  8. a car seat belt
  9. True
  10. a yoga mat
  11. True
  12. flexible
  13. an umbrella cover
  14. waterproof
  15. plastic
  16. copper
  17. a switch contact
  18. False
  19. a spectacle lens
  20. False
  21. False
  22. a window pane
  23. flexible
  24. True
  25. plastic-coated cloth
  26. waterproof
  27. True
  28. an insulator
  29. rubber
  30. True
  31. True
  32. an oven glove
  33. a conductor
  34. transparent
  35. a conductor
  36. waterproof
  37. steel
  38. copper
  39. a plug pin
  40. flexible

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