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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 395 · 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 a waterproof material? (a) a yoga mat (b) a hair band (c) a cooking pot handle (d) a water tank
  2. 2.True or false: a car windscreen needs a transparent material. (a) False (b) True
  3. 3.True or false: a boat hull needs a waterproof material. (a) False (b) True
  4. 4.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Which property matters most for a roof sheet? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  6. 6.True or false: a water tank needs an electrical conductor. (a) False (b) True
  7. 7.🔍 Which is the odd one out? (a) iron (b) copper (c) aluminium (d) clay pottery
  8. 8.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
  9. 9.🧱 Which property matters most for a car seat belt? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  10. 10.Which of these needs a heat insulator? (a) a car windscreen (b) a boat hull (c) a plug pin (d) a tea flask lining
  11. 11.🔍 Which is the odd one out? (a) glass (b) plastic (c) iron (d) dry wood
  12. 12.Which of these needs a heat insulator? (a) an umbrella cover (b) a raincoat (c) a cooking pot handle (d) a water tank
  13. 13.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  14. 14.🧱 Which property matters most for a water tank? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  15. 15.🔍 Which is the odd one out? (a) aluminium (b) iron (c) plastic (d) steel
  16. 16.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which property matters most for a car windscreen? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  18. 18.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  19. 19.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for a yoga mat? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  21. 21.True or false: a skipping rope needs a transparent material. (a) True (b) False
  22. 22.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  23. 23.🔍 Which is the odd one out? (a) iron (b) aluminium (c) brass (d) glass
  24. 24.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.True or false: a water tank needs a heat insulator. (a) False (b) True
  27. 27.Which of these needs a transparent material? (a) a cooking pot handle (b) an umbrella cover (c) a window pane (d) a yoga mat
  28. 28.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  29. 29.True or false: a spectacle lens needs an electrical conductor. (a) True (b) False
  30. 30.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
  31. 31.Which of these needs a waterproof material? (a) a hair band (b) a tea flask lining (c) a roof sheet (d) a plug pin
  32. 32.Which of these needs a flexible material? (a) a yoga mat (b) a switch contact (c) a spectacle lens (d) a plug pin
  33. 33.🔍 Which is the odd one out? (a) copper (b) graphite (c) brass (d) dry wood
  34. 34.🧱 Which property matters most for a spectacle lens? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  35. 35.🔍 Which is the odd one out? (a) steel (b) copper (c) aluminium (d) cotton cloth
  36. 36.Which of these needs a heat insulator? (a) a window pane (b) a car seat belt (c) an oven glove (d) a boat hull
  37. 37.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  39. 39.Which of these needs an electrical conductor? (a) an umbrella cover (b) a roof sheet (c) a switch contact (d) a skipping rope
  40. 40.Which of these needs a flexible material? (a) a car windscreen (b) a plug pin (c) an oven glove (d) a skipping rope

Answer key

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

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