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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 791 · 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 skipping rope needs a transparent material. (a) True (b) False
  2. 2.True or false: a window pane needs an electrical conductor. (a) True (b) False
  3. 3.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.Which of these needs an electrical conductor? (a) a raincoat (b) the core of a wire (c) a car windscreen (d) an umbrella cover
  5. 5.🧱 Which property matters most for a water tank? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  6. 6.🧱 Which property matters most for a skipping rope? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  7. 7.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  8. 8.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  9. 9.Which of these needs a transparent material? (a) a raincoat (b) a car windscreen (c) a roof sheet (d) a hair band
  10. 10.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  11. 11.🔍 Which is the odd one out? (a) brass (b) graphite (c) plastic (d) iron
  12. 12.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.True or false: a skipping rope needs a flexible material. (a) True (b) False
  14. 14.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  15. 15.🔍 Which is the odd one out? (a) aluminium (b) glass (c) iron (d) brass
  16. 16.🧱 Which property matters most for a hair band? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  17. 17.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  18. 18.True or false: a raincoat needs a heat insulator. (a) True (b) False
  19. 19.Which of these needs a transparent material? (a) a magnifier lens (b) a yoga mat (c) an oven glove (d) a tea flask lining
  20. 20.Which of these needs a transparent material? (a) a skipping rope (b) a spectacle lens (c) an umbrella cover (d) a hair band
  21. 21.Which of these needs a waterproof material? (a) a plug pin (b) a hair band (c) a yoga mat (d) a roof sheet
  22. 22.Which of these needs an electrical conductor? (a) a car seat belt (b) a plug pin (c) a yoga mat (d) a raincoat
  23. 23.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  24. 24.🔍 Which is the odd one out? (a) graphite (b) plastic (c) rubber (d) cotton cloth
  25. 25.True or false: a raincoat needs a waterproof material. (a) True (b) False
  26. 26.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  28. 28.🧱 Which property matters most for a car seat belt? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  29. 29.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) rubber (d) plastic
  32. 32.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) brass (d) plastic
  33. 33.🔍 Which is the odd one out? (a) copper (b) brass (c) steel (d) dry wood
  34. 34.Which of these needs a flexible material? (a) a raincoat (b) a boat hull (c) a window pane (d) a hair band
  35. 35.Which of these needs a heat insulator? (a) an oven glove (b) a hair band (c) a spectacle lens (d) a car seat belt
  36. 36.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  37. 37.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) rubber (d) copper
  38. 38.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a magnifier lens (c) a skipping rope (d) a switch contact
  39. 39.🔍 Which is the odd one out? (a) steel (b) copper (c) iron (d) cotton cloth
  40. 40.True or false: a car seat belt needs a flexible material. (a) True (b) False

Answer key

  1. False
  2. False
  3. a conductor
  4. the core of a wire
  5. waterproof
  6. flexible
  7. waterproof
  8. copper
  9. a car windscreen
  10. True
  11. plastic
  12. a conductor
  13. True
  14. True
  15. glass
  16. flexible
  17. transparent
  18. False
  19. a magnifier lens
  20. a spectacle lens
  21. a roof sheet
  22. a plug pin
  23. False
  24. graphite
  25. True
  26. a conductor
  27. heat insulator
  28. flexible
  29. an insulator
  30. an insulator
  31. steel
  32. brass
  33. dry wood
  34. a hair band
  35. an oven glove
  36. plastic-coated cloth
  37. copper
  38. a switch contact
  39. cotton cloth
  40. True

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