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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 829 · 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 boat hull needs a waterproof material. (a) True (b) False
  2. 2.Which of these needs a waterproof material? (a) a yoga mat (b) an oven glove (c) a cooking pot handle (d) an umbrella cover
  3. 3.🧱 Which property matters most for a water tank? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  4. 4.Which of these needs a waterproof material? (a) a window pane (b) a car seat belt (c) a car windscreen (d) a roof sheet
  5. 5.🔍 Which is the odd one out? (a) graphite (b) glass (c) clay pottery (d) dry wood
  6. 6.Which of these needs a waterproof material? (a) a switch contact (b) a plug pin (c) a boat hull (d) a hair band
  7. 7.🧱 Which property matters most for a raincoat? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  8. 8.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  9. 9.🔍 Which is the odd one out? (a) clay pottery (b) brass (c) glass (d) dry wood
  10. 10.Which of these needs an electrical conductor? (a) the core of a wire (b) a car seat belt (c) a skipping rope (d) a boat hull
  11. 11.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  12. 12.Which of these needs a flexible material? (a) a raincoat (b) a magnifier lens (c) a car seat belt (d) a switch contact
  13. 13.🔍 Which is the odd one out? (a) glass (b) dry wood (c) plastic (d) aluminium
  14. 14.True or false: a raincoat needs a flexible material. (a) False (b) True
  15. 15.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  17. 17.🔍 Which is the odd one out? (a) copper (b) aluminium (c) rubber (d) steel
  18. 18.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  20. 20.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  22. 22.True or false: a spectacle lens needs a waterproof material. (a) True (b) False
  23. 23.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  24. 24.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  25. 25.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  26. 26.🔍 Which is the odd one out? (a) copper (b) dry wood (c) graphite (d) iron
  27. 27.True or false: a plug pin needs a heat insulator. (a) True (b) False
  28. 28.🧱 Which property matters most for a car seat belt? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  29. 29.🧱 Which property matters most for a switch contact? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  30. 30.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  31. 31.🔍 Which is the odd one out? (a) plastic (b) aluminium (c) copper (d) steel
  32. 32.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🔍 Which is the odd one out? (a) rubber (b) iron (c) glass (d) clay pottery
  34. 34.🧱 Which property matters most for the core of a wire? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  35. 35.🔍 Which is the odd one out? (a) glass (b) plastic (c) rubber (d) steel
  36. 36.True or false: the core of a wire needs a flexible material. (a) True (b) False
  37. 37.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.Which of these needs a transparent material? (a) a car windscreen (b) an oven glove (c) the core of a wire (d) a boat hull
  39. 39.🔍 Which is the odd one out? (a) iron (b) brass (c) copper (d) clay pottery
  40. 40.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth

Answer key

  1. True
  2. an umbrella cover
  3. waterproof
  4. a roof sheet
  5. graphite
  6. a boat hull
  7. waterproof
  8. glass
  9. brass
  10. the core of a wire
  11. True
  12. a car seat belt
  13. aluminium
  14. False
  15. a conductor
  16. True
  17. rubber
  18. an insulator
  19. copper
  20. a conductor
  21. flexible
  22. False
  23. waterproof
  24. heat insulator
  25. False
  26. dry wood
  27. False
  28. flexible
  29. electrical conductor
  30. steel
  31. plastic
  32. an insulator
  33. iron
  34. electrical conductor
  35. steel
  36. False
  37. an insulator
  38. a car windscreen
  39. clay pottery
  40. plastic-coated cloth

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