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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 73 · 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 window pane needs a flexible material. (a) True (b) False
  2. 2.🧱 Which property matters most for a spectacle lens? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  3. 3.Which of these needs a transparent material? (a) a water tank (b) a window pane (c) a raincoat (d) a roof sheet
  4. 4.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) plastic-coated cloth (d) cardboard
  5. 5.🔍 Which is the odd one out? (a) steel (b) dry wood (c) glass (d) cotton cloth
  6. 6.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  7. 7.Which of these needs an electrical conductor? (a) a skipping rope (b) an umbrella cover (c) a plug pin (d) a raincoat
  8. 8.🔍 Which is the odd one out? (a) brass (b) copper (c) iron (d) clay pottery
  9. 9.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  10. 10.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  11. 11.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.True or false: a water tank needs a waterproof material. (a) True (b) False
  13. 13.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) glass (d) brass
  14. 14.Which of these needs a heat insulator? (a) a window pane (b) the core of a wire (c) a roof sheet (d) a cooking pot handle
  15. 15.Which of these needs a flexible material? (a) a yoga mat (b) a window pane (c) a tea flask lining (d) a raincoat
  16. 16.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  17. 17.🔍 Which is the odd one out? (a) copper (b) graphite (c) rubber (d) iron
  18. 18.🔍 Which is the odd one out? (a) brass (b) plastic (c) aluminium (d) graphite
  19. 19.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.Which of these needs a transparent material? (a) a water tank (b) an oven glove (c) a car windscreen (d) the core of a wire
  22. 22.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🔍 Which is the odd one out? (a) iron (b) plastic (c) rubber (d) dry wood
  24. 24.Which of these needs a heat insulator? (a) a magnifier lens (b) a roof sheet (c) a yoga mat (d) an oven glove
  25. 25.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) cotton cloth (d) clay pottery
  26. 26.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  27. 27.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.Which of these needs an electrical conductor? (a) a car windscreen (b) an oven glove (c) a boat hull (d) the core of a wire
  29. 29.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  30. 30.True or false: a boat hull needs a waterproof material. (a) True (b) False
  31. 31.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Which property matters most for a boat hull? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  33. 33.Which of these needs a flexible material? (a) an oven glove (b) a switch contact (c) a hair band (d) a window pane
  34. 34.Which of these needs a waterproof material? (a) a boat hull (b) a yoga mat (c) an oven glove (d) a car windscreen
  35. 35.🧱 Which property matters most for a raincoat? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  36. 36.🧱 Which property matters most for a skipping rope? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  37. 37.True or false: a car seat belt needs a flexible material. (a) True (b) False
  38. 38.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  39. 39.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  40. 40.True or false: a magnifier lens needs a transparent material. (a) False (b) True

Answer key

  1. False
  2. transparent
  3. a window pane
  4. plastic-coated cloth
  5. steel
  6. wood or plastic
  7. a plug pin
  8. clay pottery
  9. flexible
  10. True
  11. an insulator
  12. True
  13. glass
  14. a cooking pot handle
  15. a yoga mat
  16. transparent
  17. rubber
  18. plastic
  19. an insulator
  20. an insulator
  21. a car windscreen
  22. a conductor
  23. iron
  24. an oven glove
  25. aluminium
  26. electrical conductor
  27. a conductor
  28. the core of a wire
  29. True
  30. True
  31. an insulator
  32. waterproof
  33. a hair band
  34. a boat hull
  35. waterproof
  36. flexible
  37. True
  38. waterproof
  39. True
  40. True

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