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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 937 · 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.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.True or false: a raincoat needs a waterproof material. (a) True (b) False
  3. 3.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a tea flask lining (c) a roof sheet (d) a plug pin
  4. 4.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  5. 5.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  6. 6.Which of these needs a heat insulator? (a) a car windscreen (b) a raincoat (c) a switch contact (d) a cooking pot handle
  7. 7.Which of these needs a waterproof material? (a) a roof sheet (b) a switch contact (c) a tea flask lining (d) the core of a wire
  8. 8.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  9. 9.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  10. 10.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  11. 11.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.True or false: a skipping rope needs an electrical conductor. (a) False (b) True
  13. 13.🧱 Which property matters most for a yoga mat? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  14. 14.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🔍 Which is the odd one out? (a) brass (b) aluminium (c) copper (d) plastic
  16. 16.🔍 Which is the odd one out? (a) aluminium (b) steel (c) glass (d) copper
  17. 17.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.Which of these needs a waterproof material? (a) the core of a wire (b) a raincoat (c) a plug pin (d) a cooking pot handle
  19. 19.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) plastic (d) glass
  21. 21.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  22. 22.Which of these needs an electrical conductor? (a) a yoga mat (b) a tea flask lining (c) a switch contact (d) a window pane
  23. 23.Which of these needs a heat insulator? (a) a tea flask lining (b) a car windscreen (c) a water tank (d) a yoga mat
  24. 24.🔍 Which is the odd one out? (a) brass (b) dry wood (c) plastic (d) cotton cloth
  25. 25.Which of these needs a waterproof material? (a) a magnifier lens (b) a car windscreen (c) an oven glove (d) a water tank
  26. 26.Which of these needs a flexible material? (a) a skipping rope (b) a tea flask lining (c) a magnifier lens (d) a cooking pot handle
  27. 27.Which of these needs a flexible material? (a) a magnifier lens (b) a hair band (c) a cooking pot handle (d) a tea flask lining
  28. 28.🧱 Which property matters most for a roof sheet? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  29. 29.True or false: a water tank needs a waterproof material. (a) True (b) False
  30. 30.🧱 Which property matters most for an umbrella cover? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  31. 31.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  32. 32.🔍 Which is the odd one out? (a) copper (b) plastic (c) rubber (d) glass
  33. 33.Which of these needs a transparent material? (a) a water tank (b) a tea flask lining (c) a hair band (d) a magnifier lens
  34. 34.🧱 Which property matters most for the core of a wire? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  35. 35.🔍 Which is the odd one out? (a) aluminium (b) steel (c) clay pottery (d) brass
  36. 36.Which of these needs a heat insulator? (a) a spectacle lens (b) an umbrella cover (c) an oven glove (d) the core of a wire
  37. 37.True or false: a tea flask lining needs a flexible material. (a) True (b) False
  38. 38.True or false: a water tank needs an electrical conductor. (a) True (b) False
  39. 39.True or false: an oven glove needs a flexible material. (a) False (b) True
  40. 40.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent

Answer key

  1. a conductor
  2. True
  3. a plug pin
  4. True
  5. glass
  6. a cooking pot handle
  7. a roof sheet
  8. False
  9. True
  10. transparent
  11. an insulator
  12. False
  13. flexible
  14. a conductor
  15. plastic
  16. glass
  17. a conductor
  18. a raincoat
  19. an insulator
  20. steel
  21. plastic-coated cloth
  22. a switch contact
  23. a tea flask lining
  24. brass
  25. a water tank
  26. a skipping rope
  27. a hair band
  28. waterproof
  29. True
  30. waterproof
  31. copper
  32. copper
  33. a magnifier lens
  34. electrical conductor
  35. clay pottery
  36. an oven glove
  37. False
  38. False
  39. False
  40. waterproof

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