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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 575 · 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 boat hull? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  2. 2.Which of these needs a flexible material? (a) a switch contact (b) a raincoat (c) a skipping rope (d) a magnifier lens
  3. 3.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  4. 4.🧱 Which material is best for a window pane? (a) steel (b) wood (c) glass (d) brick
  5. 5.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) plastic (d) rubber
  6. 6.True or false: a raincoat needs a transparent material. (a) True (b) False
  7. 7.Which of these needs an electrical conductor? (a) an oven glove (b) the core of a wire (c) a car windscreen (d) a yoga mat
  8. 8.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  11. 11.🔍 Which is the odd one out? (a) iron (b) dry wood (c) plastic (d) rubber
  12. 12.Which of these needs a waterproof material? (a) the core of a wire (b) a tea flask lining (c) a skipping rope (d) an umbrella cover
  13. 13.True or false: a skipping rope needs a flexible material. (a) False (b) True
  14. 14.True or false: a water tank needs a flexible material. (a) True (b) False
  15. 15.Which of these needs a waterproof material? (a) an oven glove (b) a roof sheet (c) a window pane (d) a yoga mat
  16. 16.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) steel (d) dry wood
  17. 17.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  18. 18.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  19. 19.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  20. 20.Which of these needs a heat insulator? (a) a yoga mat (b) a car windscreen (c) a window pane (d) an oven glove
  21. 21.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  22. 22.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  23. 23.True or false: a switch contact needs a transparent material. (a) True (b) False
  24. 24.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Which property matters most for a skipping rope? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  28. 28.🔍 Which is the odd one out? (a) aluminium (b) steel (c) iron (d) clay pottery
  29. 29.Which of these needs an electrical conductor? (a) a yoga mat (b) a water tank (c) a switch contact (d) a car seat belt
  30. 30.True or false: a roof sheet needs a flexible material. (a) False (b) True
  31. 31.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  32. 32.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  34. 34.🧱 Which property matters most for a car seat belt? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  35. 35.Which of these needs a flexible material? (a) a car seat belt (b) an oven glove (c) the core of a wire (d) a water tank
  36. 36.True or false: a hair band needs a flexible material. (a) False (b) True
  37. 37.🔍 Which is the odd one out? (a) clay pottery (b) brass (c) glass (d) cotton cloth
  38. 38.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

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

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