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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 356 · 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 property matters most for a hair band? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  2. 2.Which of these needs a flexible material? (a) an umbrella cover (b) a car windscreen (c) a car seat belt (d) the core of a wire
  3. 3.🔍 Which is the odd one out? (a) iron (b) plastic (c) graphite (d) copper
  4. 4.Which of these needs a waterproof material? (a) a water tank (b) a hair band (c) a magnifier lens (d) a yoga mat
  5. 5.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  6. 6.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Which property matters most for a magnifier lens? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  8. 8.🧱 Which material is best for a window pane? (a) glass (b) wood (c) steel (d) brick
  9. 9.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🔍 Which is the odd one out? (a) iron (b) steel (c) rubber (d) graphite
  11. 11.🧱 Which property matters most for a roof sheet? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  12. 12.🔍 Which is the odd one out? (a) aluminium (b) steel (c) iron (d) dry wood
  13. 13.Which of these needs a waterproof material? (a) a hair band (b) an umbrella cover (c) a plug pin (d) a tea flask lining
  14. 14.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.True or false: a boat hull needs a flexible material. (a) False (b) True
  16. 16.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) dry wood (d) graphite
  17. 17.True or false: an umbrella cover needs an electrical conductor. (a) False (b) True
  18. 18.Which of these needs a heat insulator? (a) a magnifier lens (b) a car seat belt (c) a cooking pot handle (d) an umbrella cover
  19. 19.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  20. 20.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.True or false: a plug pin needs a flexible material. (a) True (b) False
  23. 23.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  24. 24.🔍 Which is the odd one out? (a) glass (b) dry wood (c) plastic (d) brass
  25. 25.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) aluminium (d) clay pottery
  26. 26.True or false: a tea flask lining needs a flexible material. (a) True (b) False
  27. 27.Which of these needs an electrical conductor? (a) the core of a wire (b) a raincoat (c) a yoga mat (d) a window pane
  28. 28.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Which property matters most for a yoga mat? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  30. 30.Which of these needs a flexible material? (a) an umbrella cover (b) the core of a wire (c) a boat hull (d) a skipping rope
  31. 31.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  32. 32.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  33. 33.True or false: a raincoat needs a flexible material. (a) True (b) False
  34. 34.True or false: a car windscreen needs a flexible material. (a) True (b) False
  35. 35.True or false: a boat hull needs a heat insulator. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) steel (b) iron (c) clay pottery (d) aluminium
  37. 37.True or false: a water tank needs a waterproof material. (a) False (b) True
  38. 38.🧱 Which property matters most for a boat hull? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  39. 39.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) cotton cloth (d) copper
  40. 40.🧱 Which property matters most for an umbrella cover? (a) flexible (b) transparent (c) waterproof (d) heat insulator

Answer key

  1. flexible
  2. a car seat belt
  3. plastic
  4. a water tank
  5. steel
  6. a conductor
  7. transparent
  8. glass
  9. an insulator
  10. rubber
  11. waterproof
  12. dry wood
  13. an umbrella cover
  14. a conductor
  15. False
  16. graphite
  17. False
  18. a cooking pot handle
  19. copper
  20. a conductor
  21. an insulator
  22. False
  23. heat insulator
  24. brass
  25. aluminium
  26. False
  27. the core of a wire
  28. an insulator
  29. flexible
  30. a skipping rope
  31. plastic-coated cloth
  32. True
  33. False
  34. False
  35. False
  36. clay pottery
  37. True
  38. waterproof
  39. cotton cloth
  40. waterproof

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