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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 384 · 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 an electrical conductor? (a) a window pane (b) a skipping rope (c) a switch contact (d) a raincoat
  2. 2.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🔍 Which is the odd one out? (a) aluminium (b) steel (c) cotton cloth (d) graphite
  4. 4.🧱 Which property matters most for a switch contact? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  5. 5.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  6. 6.True or false: a yoga mat needs a waterproof material. (a) False (b) True
  7. 7.🔍 Which is the odd one out? (a) iron (b) steel (c) clay pottery (d) copper
  8. 8.True or false: a skipping rope needs a transparent material. (a) False (b) True
  9. 9.🧱 Which property matters most for a water tank? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  10. 10.Which of these needs a waterproof material? (a) a spectacle lens (b) a car windscreen (c) a roof sheet (d) a car seat belt
  11. 11.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) iron (d) glass
  12. 12.Which of these needs a flexible material? (a) a switch contact (b) a car seat belt (c) a cooking pot handle (d) a car windscreen
  13. 13.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  14. 14.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  15. 15.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  16. 16.Which of these needs a waterproof material? (a) a car seat belt (b) a boat hull (c) a magnifier lens (d) a plug pin
  17. 17.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  19. 19.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.True or false: a raincoat needs a flexible material. (a) False (b) True
  21. 21.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) clay pottery (d) graphite
  22. 22.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
  23. 23.Which of these needs a heat insulator? (a) a plug pin (b) a hair band (c) a car windscreen (d) a tea flask lining
  24. 24.Which of these needs a transparent material? (a) a raincoat (b) a car seat belt (c) a plug pin (d) a magnifier lens
  25. 25.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) dry wood (d) steel
  27. 27.🔍 Which is the odd one out? (a) iron (b) dry wood (c) cotton cloth (d) glass
  28. 28.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) glass (d) plastic
  29. 29.🧱 Which property matters most for a tea flask lining? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  30. 30.🧱 Which property matters most for a car seat belt? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  31. 31.Which of these needs a transparent material? (a) the core of a wire (b) a boat hull (c) a window pane (d) a plug pin
  32. 32.Which of these needs a flexible material? (a) a yoga mat (b) a spectacle lens (c) a tea flask lining (d) a magnifier lens
  33. 33.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  34. 34.Which of these needs a waterproof material? (a) a water tank (b) a skipping rope (c) a hair band (d) a car windscreen
  35. 35.Which of these needs a heat insulator? (a) a hair band (b) a skipping rope (c) a cooking pot handle (d) a window pane
  36. 36.Which of these needs a waterproof material? (a) an umbrella cover (b) a tea flask lining (c) a skipping rope (d) a switch contact
  37. 37.True or false: a boat hull needs a waterproof material. (a) True (b) False
  38. 38.🧱 Which property matters most for a window pane? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  39. 39.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) plastic (d) glass
  40. 40.True or false: a car seat belt needs a waterproof material. (a) False (b) True

Answer key

  1. a switch contact
  2. an insulator
  3. cotton cloth
  4. electrical conductor
  5. wood or plastic
  6. False
  7. clay pottery
  8. False
  9. waterproof
  10. a roof sheet
  11. glass
  12. a car seat belt
  13. copper
  14. True
  15. flexible
  16. a boat hull
  17. a conductor
  18. glass
  19. a conductor
  20. False
  21. graphite
  22. plastic-coated cloth
  23. a tea flask lining
  24. a magnifier lens
  25. an insulator
  26. steel
  27. iron
  28. steel
  29. heat insulator
  30. flexible
  31. a window pane
  32. a yoga mat
  33. waterproof
  34. a water tank
  35. a cooking pot handle
  36. an umbrella cover
  37. True
  38. transparent
  39. copper
  40. False

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