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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 422 · 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 is the odd one out? (a) rubber (b) clay pottery (c) plastic (d) brass
  2. 2.True or false: a plug pin needs a waterproof material. (a) False (b) True
  3. 3.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  4. 4.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  5. 5.Which of these needs an electrical conductor? (a) a tea flask lining (b) a yoga mat (c) a water tank (d) a plug pin
  6. 6.Which of these needs a waterproof material? (a) an umbrella cover (b) the core of a wire (c) a switch contact (d) an oven glove
  7. 7.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🔍 Which is the odd one out? (a) steel (b) aluminium (c) glass (d) iron
  9. 9.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) clay pottery (d) aluminium
  10. 10.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  11. 11.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  12. 12.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.Which of these needs a heat insulator? (a) a magnifier lens (b) a water tank (c) a cooking pot handle (d) a car seat belt
  15. 15.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  16. 16.🔍 Which is the odd one out? (a) aluminium (b) brass (c) plastic (d) copper
  17. 17.🧱 Which property matters most for an oven glove? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  18. 18.Which of these needs a transparent material? (a) a magnifier lens (b) a roof sheet (c) a boat hull (d) a yoga mat
  19. 19.Which of these needs a waterproof material? (a) a skipping rope (b) a plug pin (c) a boat hull (d) a hair band
  20. 20.Which of these needs a heat insulator? (a) a roof sheet (b) an oven glove (c) a car seat belt (d) a boat hull
  21. 21.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  22. 22.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  23. 23.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.Which of these needs an electrical conductor? (a) a boat hull (b) an oven glove (c) the core of a wire (d) a roof sheet
  25. 25.True or false: a boat hull needs a waterproof material. (a) True (b) False
  26. 26.True or false: a water tank needs a flexible material. (a) True (b) False
  27. 27.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.True or false: a magnifier lens needs an electrical conductor. (a) True (b) False
  29. 29.🧱 Which property matters most for a boat hull? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  30. 30.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) graphite (d) dry wood
  31. 31.🧱 Which property matters most for a window pane? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  32. 32.True or false: a window pane needs a transparent material. (a) True (b) False
  33. 33.Which of these needs a transparent material? (a) an umbrella cover (b) a roof sheet (c) a window pane (d) a skipping rope
  34. 34.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) plastic (d) glass
  35. 35.True or false: a boat hull needs a flexible material. (a) True (b) False
  36. 36.Which of these needs a heat insulator? (a) a roof sheet (b) a tea flask lining (c) a boat hull (d) a car seat belt
  37. 37.True or false: a boat hull needs a transparent material. (a) True (b) False
  38. 38.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🔍 Which is the odd one out? (a) copper (b) dry wood (c) clay pottery (d) cotton cloth

Answer key

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

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