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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 198 · 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 raincoat? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  2. 2.True or false: the core of a wire needs a flexible material. (a) True (b) False
  3. 3.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🧱 Which property matters most for a boat hull? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  5. 5.🧱 Which property matters most for an umbrella cover? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  6. 6.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  7. 7.🔍 Which is the odd one out? (a) brass (b) cotton cloth (c) iron (d) steel
  8. 8.True or false: a water tank needs a waterproof material. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) plastic (b) copper (c) cotton cloth (d) glass
  10. 10.Which of these needs a waterproof material? (a) a skipping rope (b) a car windscreen (c) a switch contact (d) an umbrella cover
  11. 11.True or false: a skipping rope needs a flexible material. (a) False (b) True
  12. 12.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) cotton wool (d) paper
  13. 13.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  14. 14.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) rubber (d) glass
  15. 15.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) clay pottery (d) graphite
  16. 16.Which of these needs a flexible material? (a) a plug pin (b) a yoga mat (c) a window pane (d) an oven glove
  17. 17.Which of these needs a heat insulator? (a) a spectacle lens (b) a roof sheet (c) a car seat belt (d) a cooking pot handle
  18. 18.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) plastic (d) aluminium
  19. 19.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  20. 20.Which of these needs a flexible material? (a) a cooking pot handle (b) a water tank (c) a skipping rope (d) a car windscreen
  21. 21.🔍 Which is the odd one out? (a) copper (b) dry wood (c) aluminium (d) graphite
  22. 22.True or false: a hair band needs a flexible material. (a) True (b) False
  23. 23.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  24. 24.🧱 Which property matters most for a tea flask lining? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  25. 25.🔍 Which is the odd one out? (a) copper (b) glass (c) brass (d) aluminium
  26. 26.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.Which of these needs a heat insulator? (a) an umbrella cover (b) a tea flask lining (c) a roof sheet (d) a hair band
  28. 28.Which of these needs a heat insulator? (a) a car windscreen (b) an oven glove (c) a magnifier lens (d) a plug pin
  29. 29.Which of these needs a waterproof material? (a) a hair band (b) a magnifier lens (c) a boat hull (d) a tea flask lining
  30. 30.True or false: a water tank needs a flexible material. (a) True (b) False
  31. 31.True or false: a tea flask lining needs a flexible material. (a) False (b) True
  32. 32.🧱 Which property matters most for a skipping rope? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  33. 33.🔍 Which is the odd one out? (a) brass (b) glass (c) dry wood (d) plastic
  34. 34.Which of these needs an electrical conductor? (a) a raincoat (b) a hair band (c) a plug pin (d) a window pane
  35. 35.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  36. 36.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  37. 37.True or false: a plug pin needs a heat insulator. (a) False (b) True
  38. 38.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  39. 39.🧱 Which property matters most for a plug pin? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  40. 40.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) copper (d) graphite

Answer key

  1. waterproof
  2. False
  3. an insulator
  4. waterproof
  5. waterproof
  6. steel
  7. cotton cloth
  8. True
  9. copper
  10. an umbrella cover
  11. True
  12. plastic-coated cloth
  13. wood or plastic
  14. iron
  15. graphite
  16. a yoga mat
  17. a cooking pot handle
  18. aluminium
  19. True
  20. a skipping rope
  21. dry wood
  22. True
  23. True
  24. heat insulator
  25. glass
  26. an insulator
  27. a tea flask lining
  28. an oven glove
  29. a boat hull
  30. False
  31. False
  32. flexible
  33. brass
  34. a plug pin
  35. electrical conductor
  36. False
  37. False
  38. glass
  39. electrical conductor
  40. plastic

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