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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 951 · 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.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Which property matters most for a car seat belt? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  3. 3.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.Which of these needs a waterproof material? (a) an umbrella cover (b) a switch contact (c) a car seat belt (d) a plug pin
  5. 5.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  6. 6.Which of these needs an electrical conductor? (a) a spectacle lens (b) a car windscreen (c) a skipping rope (d) a plug pin
  7. 7.🧱 Which material is best for a window pane? (a) brick (b) glass (c) wood (d) steel
  8. 8.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) clay pottery (d) rubber
  9. 9.Which of these needs a flexible material? (a) a roof sheet (b) a magnifier lens (c) a car seat belt (d) a car windscreen
  10. 10.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) rubber (d) copper
  11. 11.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  12. 12.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  13. 13.Which of these needs a waterproof material? (a) an oven glove (b) a spectacle lens (c) a plug pin (d) a raincoat
  14. 14.Which of these needs a flexible material? (a) a roof sheet (b) a water tank (c) an oven glove (d) a yoga mat
  15. 15.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) glass (d) brass
  16. 16.Which of these needs a transparent material? (a) a hair band (b) a window pane (c) a switch contact (d) a water tank
  17. 17.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.Which of these needs a heat insulator? (a) a skipping rope (b) a spectacle lens (c) a switch contact (d) an oven glove
  19. 19.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) aluminium (d) rubber
  20. 20.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  21. 21.Which of these needs a transparent material? (a) a water tank (b) a cooking pot handle (c) a spectacle lens (d) the core of a wire
  22. 22.🧱 Which property matters most for a raincoat? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  23. 23.🔍 Which is the odd one out? (a) copper (b) steel (c) plastic (d) aluminium
  24. 24.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  26. 26.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.True or false: a yoga mat needs a flexible material. (a) False (b) True
  28. 28.Which of these needs a flexible material? (a) an oven glove (b) a switch contact (c) an umbrella cover (d) a skipping rope
  29. 29.True or false: a car seat belt needs a flexible material. (a) False (b) True
  30. 30.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.Which of these needs an electrical conductor? (a) a car seat belt (b) a switch contact (c) a magnifier lens (d) a tea flask lining
  32. 32.Which of these needs an electrical conductor? (a) a boat hull (b) an oven glove (c) a raincoat (d) the core of a wire
  33. 33.True or false: the core of a wire needs a flexible material. (a) True (b) False
  34. 34.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) dry wood (d) brass
  35. 35.True or false: a tea flask lining needs a waterproof material. (a) True (b) False
  36. 36.True or false: a water tank needs a waterproof material. (a) False (b) True
  37. 37.🔍 Which is the odd one out? (a) copper (b) rubber (c) brass (d) aluminium
  38. 38.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  39. 39.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) glass (d) dry wood
  40. 40.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. an insulator
  2. flexible
  3. a conductor
  4. an umbrella cover
  5. plastic-coated cloth
  6. a plug pin
  7. glass
  8. iron
  9. a car seat belt
  10. copper
  11. electrical conductor
  12. copper
  13. a raincoat
  14. a yoga mat
  15. glass
  16. a window pane
  17. a conductor
  18. an oven glove
  19. aluminium
  20. transparent
  21. a spectacle lens
  22. waterproof
  23. plastic
  24. an insulator
  25. waterproof
  26. a conductor
  27. True
  28. a skipping rope
  29. True
  30. an insulator
  31. a switch contact
  32. the core of a wire
  33. False
  34. brass
  35. False
  36. True
  37. rubber
  38. wood or plastic
  39. graphite
  40. an insulator

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