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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 49 · 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 waterproof material? (a) a hair band (b) a raincoat (c) an oven glove (d) a magnifier lens
  2. 2.Which of these needs a flexible material? (a) a car seat belt (b) a boat hull (c) a tea flask lining (d) a roof sheet
  3. 3.🔍 Which is the odd one out? (a) iron (b) glass (c) graphite (d) aluminium
  4. 4.Which of these needs a flexible material? (a) a magnifier lens (b) an oven glove (c) a cooking pot handle (d) a hair band
  5. 5.🧱 Which property matters most for the core of a wire? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  6. 6.Which of these needs a transparent material? (a) a plug pin (b) the core of a wire (c) a yoga mat (d) a car windscreen
  7. 7.🔍 Which is the odd one out? (a) iron (b) steel (c) plastic (d) brass
  8. 8.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  9. 9.Which of these needs an electrical conductor? (a) a magnifier lens (b) a water tank (c) a cooking pot handle (d) the core of a wire
  10. 10.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  11. 11.Which of these needs a transparent material? (a) a hair band (b) a skipping rope (c) a magnifier lens (d) a raincoat
  12. 12.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) glass (d) brass
  13. 13.True or false: a water tank needs a waterproof material. (a) False (b) True
  14. 14.🧱 Which material is best for a window pane? (a) wood (b) glass (c) steel (d) brick
  15. 15.True or false: a car seat belt needs a flexible material. (a) True (b) False
  16. 16.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) glass (d) graphite
  17. 17.True or false: an umbrella cover needs a heat insulator. (a) True (b) False
  18. 18.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  20. 20.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) steel (d) glass
  21. 21.🧱 Which property matters most for a window pane? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  22. 22.🔍 Which is the odd one out? (a) graphite (b) iron (c) dry wood (d) brass
  23. 23.Which of these needs a waterproof material? (a) a tea flask lining (b) a window pane (c) a roof sheet (d) a magnifier lens
  24. 24.Which of these needs a flexible material? (a) a window pane (b) a water tank (c) a cooking pot handle (d) a skipping rope
  25. 25.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🔍 Which is the odd one out? (a) glass (b) rubber (c) copper (d) dry wood
  27. 27.🧱 Which property matters most for a water tank? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  28. 28.🧱 Which property matters most for an umbrella cover? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  29. 29.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a hair band (c) an oven glove (d) a plug pin
  30. 30.Which of these needs a heat insulator? (a) a magnifier lens (b) a raincoat (c) a boat hull (d) an oven glove
  31. 31.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  34. 34.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) aluminium (d) iron
  36. 36.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  37. 37.🔍 Which is the odd one out? (a) iron (b) dry wood (c) glass (d) clay pottery
  38. 38.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.Which of these needs a waterproof material? (a) a skipping rope (b) a yoga mat (c) a car windscreen (d) an umbrella cover
  40. 40.Which of these needs a waterproof material? (a) a yoga mat (b) a skipping rope (c) a boat hull (d) a plug pin

Answer key

  1. a raincoat
  2. a car seat belt
  3. glass
  4. a hair band
  5. electrical conductor
  6. a car windscreen
  7. plastic
  8. flexible
  9. the core of a wire
  10. transparent
  11. a magnifier lens
  12. brass
  13. True
  14. glass
  15. True
  16. graphite
  17. False
  18. an insulator
  19. steel
  20. steel
  21. transparent
  22. dry wood
  23. a roof sheet
  24. a skipping rope
  25. a conductor
  26. copper
  27. waterproof
  28. waterproof
  29. a plug pin
  30. an oven glove
  31. a conductor
  32. an insulator
  33. heat insulator
  34. an insulator
  35. wood or plastic
  36. True
  37. iron
  38. a conductor
  39. an umbrella cover
  40. a boat hull

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