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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 749 · 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: an oven glove needs a heat insulator. (a) True (b) False
  2. 2.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  4. 4.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) copper (d) dry wood
  5. 5.Which of these needs a heat insulator? (a) a water tank (b) a raincoat (c) a skipping rope (d) a cooking pot handle
  6. 6.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  7. 7.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  8. 8.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which property matters most for a raincoat? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  10. 10.🧱 Which property matters most for a switch contact? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  11. 11.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a car windscreen (c) a plug pin (d) a water tank
  12. 12.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  15. 15.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  16. 16.🔍 Which is the odd one out? (a) iron (b) glass (c) clay pottery (d) cotton cloth
  17. 17.Which of these needs a waterproof material? (a) a yoga mat (b) a raincoat (c) a car windscreen (d) a plug pin
  18. 18.Which of these needs a waterproof material? (a) a car windscreen (b) an umbrella cover (c) the core of a wire (d) an oven glove
  19. 19.Which of these needs a transparent material? (a) a yoga mat (b) a window pane (c) a roof sheet (d) a car seat belt
  20. 20.True or false: an oven glove needs an electrical conductor. (a) False (b) True
  21. 21.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  24. 24.Which of these needs a waterproof material? (a) a boat hull (b) a car seat belt (c) a yoga mat (d) the core of a wire
  25. 25.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  26. 26.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  27. 27.Which of these needs an electrical conductor? (a) a skipping rope (b) the core of a wire (c) a cooking pot handle (d) a water tank
  28. 28.Which of these needs a heat insulator? (a) a car windscreen (b) a car seat belt (c) a magnifier lens (d) a tea flask lining
  29. 29.True or false: a boat hull needs a waterproof material. (a) True (b) False
  30. 30.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  32. 32.True or false: a window pane needs a transparent material. (a) False (b) True
  33. 33.True or false: a water tank needs a transparent material. (a) False (b) True
  34. 34.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic
  35. 35.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🔍 Which is the odd one out? (a) copper (b) steel (c) iron (d) glass
  37. 37.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) graphite (d) plastic
  38. 38.🔍 Which is the odd one out? (a) steel (b) copper (c) rubber (d) brass
  39. 39.Which of these needs a flexible material? (a) a plug pin (b) an oven glove (c) a car seat belt (d) a switch contact
  40. 40.🧱 Which property matters most for an oven glove? (a) waterproof (b) transparent (c) heat insulator (d) flexible

Answer key

  1. True
  2. an insulator
  3. copper
  4. copper
  5. a cooking pot handle
  6. wood or plastic
  7. heat insulator
  8. a conductor
  9. waterproof
  10. electrical conductor
  11. a plug pin
  12. an insulator
  13. a conductor
  14. transparent
  15. plastic-coated cloth
  16. iron
  17. a raincoat
  18. an umbrella cover
  19. a window pane
  20. False
  21. an insulator
  22. a conductor
  23. transparent
  24. a boat hull
  25. flexible
  26. False
  27. the core of a wire
  28. a tea flask lining
  29. True
  30. a conductor
  31. waterproof
  32. True
  33. False
  34. steel
  35. an insulator
  36. glass
  37. graphite
  38. rubber
  39. a car seat belt
  40. heat insulator

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