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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 53 · 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 property matters most for a car seat belt? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  2. 2.True or false: a spectacle lens needs an electrical conductor. (a) True (b) False
  3. 3.🧱 Which property matters most for an oven glove? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  4. 4.🔍 Which is the odd one out? (a) copper (b) plastic (c) iron (d) graphite
  5. 5.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  6. 6.Which of these needs a waterproof material? (a) a tea flask lining (b) a boat hull (c) the core of a wire (d) a plug pin
  7. 7.Which of these needs a flexible material? (a) a water tank (b) a car windscreen (c) a yoga mat (d) a plug pin
  8. 8.True or false: a car windscreen needs a transparent material. (a) False (b) True
  9. 9.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  10. 10.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.True or false: an umbrella cover needs an electrical conductor. (a) False (b) True
  12. 12.Which of these needs a waterproof material? (a) the core of a wire (b) a switch contact (c) a hair band (d) an umbrella cover
  13. 13.🧱 Which material is best for a window pane? (a) wood (b) glass (c) brick (d) steel
  14. 14.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) glass (d) rubber
  15. 15.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) copper (d) cotton cloth
  16. 16.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) aluminium (d) plastic
  17. 17.🧱 Which property matters most for a hair band? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  18. 18.Which of these needs a heat insulator? (a) a skipping rope (b) a tea flask lining (c) the core of a wire (d) a raincoat
  19. 19.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  20. 20.🔍 Which is the odd one out? (a) brass (b) graphite (c) rubber (d) steel
  21. 21.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  22. 22.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.Which of these needs a waterproof material? (a) a plug pin (b) a window pane (c) a water tank (d) a car windscreen
  24. 24.Which of these needs a heat insulator? (a) an oven glove (b) a plug pin (c) a water tank (d) a boat hull
  25. 25.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.Which of these needs a flexible material? (a) an umbrella cover (b) a car seat belt (c) a magnifier lens (d) a roof sheet
  29. 29.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  30. 30.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.True or false: a hair band needs an electrical conductor. (a) False (b) True
  32. 32.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) rubber (d) graphite
  33. 33.Which of these needs an electrical conductor? (a) a car windscreen (b) a roof sheet (c) a switch contact (d) a skipping rope
  34. 34.🧱 Which property matters most for a window pane? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  35. 35.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  36. 36.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  37. 37.True or false: a raincoat needs a heat insulator. (a) False (b) True
  38. 38.🔍 Which is the odd one out? (a) steel (b) cotton cloth (c) copper (d) brass
  39. 39.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) glass (d) steel
  40. 40.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) transparent (d) heat insulator

Answer key

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

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