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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 707 · 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 material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  2. 2.True or false: a cooking pot handle needs an electrical conductor. (a) True (b) False
  3. 3.True or false: a switch contact needs a waterproof material. (a) False (b) True
  4. 4.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) graphite (d) rubber
  5. 5.Which of these needs a waterproof material? (a) a yoga mat (b) a hair band (c) a tea flask lining (d) an umbrella cover
  6. 6.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  7. 7.🔍 Which is the odd one out? (a) iron (b) aluminium (c) graphite (d) dry wood
  8. 8.True or false: a hair band needs a waterproof material. (a) False (b) True
  9. 9.Which of these needs a heat insulator? (a) a roof sheet (b) a boat hull (c) an oven glove (d) a yoga mat
  10. 10.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  11. 11.🧱 Which property matters most for a roof sheet? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  12. 12.True or false: a boat hull needs a waterproof material. (a) True (b) False
  13. 13.🧱 Which property matters most for a car seat belt? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  14. 14.🧱 Which property matters most for a plug pin? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  15. 15.Which of these needs a flexible material? (a) a water tank (b) an oven glove (c) a skipping rope (d) a tea flask lining
  16. 16.True or false: a hair band needs a flexible material. (a) False (b) True
  17. 17.🔍 Which is the odd one out? (a) brass (b) rubber (c) cotton cloth (d) plastic
  18. 18.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  19. 19.Which of these needs a transparent material? (a) a plug pin (b) a skipping rope (c) a window pane (d) a tea flask lining
  20. 20.🔍 Which is the odd one out? (a) iron (b) graphite (c) steel (d) plastic
  21. 21.Which of these needs a transparent material? (a) a yoga mat (b) a car windscreen (c) a tea flask lining (d) a car seat belt
  22. 22.Which of these needs a flexible material? (a) an umbrella cover (b) a raincoat (c) a magnifier lens (d) a car seat belt
  23. 23.🔍 Which is the odd one out? (a) iron (b) glass (c) steel (d) graphite
  24. 24.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🔍 Which is the odd one out? (a) iron (b) steel (c) rubber (d) aluminium
  26. 26.🧱 Which property matters most for a window pane? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  27. 27.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) steel (d) rubber
  28. 28.Which of these needs an electrical conductor? (a) a water tank (b) the core of a wire (c) a hair band (d) an umbrella cover
  29. 29.True or false: a roof sheet needs a heat insulator. (a) False (b) True
  30. 30.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  31. 31.Which of these needs a waterproof material? (a) a switch contact (b) a raincoat (c) a car seat belt (d) a yoga mat
  32. 32.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  33. 33.Which of these needs an electrical conductor? (a) a plug pin (b) an umbrella cover (c) a hair band (d) a boat hull
  34. 34.True or false: a water tank needs a waterproof material. (a) True (b) False
  35. 35.🧱 Which property matters most for a raincoat? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  36. 36.True or false: a skipping rope needs a flexible material. (a) True (b) False
  37. 37.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.🧱 Which property matters most for a switch contact? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  39. 39.🔍 Which is the odd one out? (a) iron (b) glass (c) plastic (d) cotton cloth
  40. 40.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. copper
  2. False
  3. False
  4. graphite
  5. an umbrella cover
  6. heat insulator
  7. dry wood
  8. False
  9. an oven glove
  10. steel
  11. waterproof
  12. True
  13. flexible
  14. electrical conductor
  15. a skipping rope
  16. True
  17. brass
  18. True
  19. a window pane
  20. plastic
  21. a car windscreen
  22. a car seat belt
  23. glass
  24. a conductor
  25. rubber
  26. transparent
  27. steel
  28. the core of a wire
  29. False
  30. wood or plastic
  31. a raincoat
  32. flexible
  33. a plug pin
  34. True
  35. waterproof
  36. True
  37. a conductor
  38. electrical conductor
  39. iron
  40. a conductor

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