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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 230 · 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 of these needs a flexible material? (a) a raincoat (b) the core of a wire (c) a switch contact (d) a car seat belt
  2. 2.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  3. 3.🔍 Which is the odd one out? (a) brass (b) glass (c) copper (d) steel
  4. 4.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) plastic (d) glass
  6. 6.True or false: an umbrella cover needs a heat insulator. (a) False (b) True
  7. 7.🧱 Which property matters most for a raincoat? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  8. 8.🔍 Which is the odd one out? (a) copper (b) rubber (c) brass (d) steel
  9. 9.Which of these needs a waterproof material? (a) a car windscreen (b) a tea flask lining (c) the core of a wire (d) a roof sheet
  10. 10.Which of these needs a waterproof material? (a) a tea flask lining (b) a skipping rope (c) a water tank (d) a hair band
  11. 11.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  12. 12.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.True or false: a yoga mat needs a flexible material. (a) False (b) True
  14. 14.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  15. 15.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.True or false: a switch contact needs a transparent material. (a) True (b) False
  18. 18.Which of these needs a heat insulator? (a) the core of a wire (b) a cooking pot handle (c) a magnifier lens (d) a skipping rope
  19. 19.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  20. 20.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  21. 21.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) dry wood (d) copper
  22. 22.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  23. 23.🧱 Which material is best for a window pane? (a) brick (b) wood (c) steel (d) glass
  24. 24.Which of these needs a heat insulator? (a) a skipping rope (b) a roof sheet (c) a car windscreen (d) an oven glove
  25. 25.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  27. 27.🧱 Which property matters most for an oven glove? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  28. 28.🔍 Which is the odd one out? (a) steel (b) glass (c) rubber (d) cotton cloth
  29. 29.True or false: a raincoat needs a waterproof material. (a) True (b) False
  30. 30.🧱 Which property matters most for a car windscreen? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  31. 31.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  32. 32.True or false: a roof sheet needs a flexible material. (a) True (b) False
  33. 33.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) graphite (d) iron
  34. 34.Which of these needs an electrical conductor? (a) a car seat belt (b) an umbrella cover (c) a switch contact (d) a water tank
  35. 35.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  36. 36.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.Which of these needs a waterproof material? (a) an umbrella cover (b) a hair band (c) the core of a wire (d) a skipping rope
  38. 38.Which of these needs a transparent material? (a) a switch contact (b) a raincoat (c) a magnifier lens (d) a tea flask lining
  39. 39.Which of these needs a flexible material? (a) a skipping rope (b) a car windscreen (c) a tea flask lining (d) a magnifier lens
  40. 40.Which of these needs a waterproof material? (a) a boat hull (b) a cooking pot handle (c) a window pane (d) a tea flask lining

Answer key

  1. a car seat belt
  2. True
  3. glass
  4. a conductor
  5. steel
  6. False
  7. waterproof
  8. rubber
  9. a roof sheet
  10. a water tank
  11. transparent
  12. a conductor
  13. True
  14. False
  15. an insulator
  16. an insulator
  17. False
  18. a cooking pot handle
  19. True
  20. plastic-coated cloth
  21. dry wood
  22. flexible
  23. glass
  24. an oven glove
  25. an insulator
  26. True
  27. heat insulator
  28. steel
  29. True
  30. transparent
  31. electrical conductor
  32. False
  33. clay pottery
  34. a switch contact
  35. waterproof
  36. a conductor
  37. an umbrella cover
  38. a magnifier lens
  39. a skipping rope
  40. a boat hull

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