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Engineering Worksheet: Materials

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

Answer key

  1. dry wood
  2. a spectacle lens
  3. waterproof
  4. rubber
  5. False
  6. glass
  7. transparent
  8. steel
  9. True
  10. a conductor
  11. True
  12. an insulator
  13. False
  14. a tea flask lining
  15. cotton cloth
  16. wood or plastic
  17. False
  18. an insulator
  19. graphite
  20. copper
  21. flexible
  22. a raincoat
  23. flexible
  24. plastic-coated cloth
  25. a car windscreen
  26. an umbrella cover
  27. a yoga mat
  28. steel
  29. True
  30. True
  31. False
  32. a cooking pot handle
  33. a conductor
  34. False
  35. an insulator
  36. False
  37. plastic
  38. an insulator
  39. waterproof
  40. iron

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