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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 343 · 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) plastic (b) graphite (c) steel (d) aluminium
  2. 2.Which of these needs a waterproof material? (a) a yoga mat (b) a tea flask lining (c) a raincoat (d) a switch contact
  3. 3.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  4. 4.🔍 Which is the odd one out? (a) clay pottery (b) steel (c) aluminium (d) graphite
  5. 5.Which of these needs a flexible material? (a) a skipping rope (b) a roof sheet (c) a cooking pot handle (d) a tea flask lining
  6. 6.Which of these needs a heat insulator? (a) the core of a wire (b) a plug pin (c) an oven glove (d) a hair band
  7. 7.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  8. 8.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  9. 9.Which of these needs an electrical conductor? (a) a roof sheet (b) a car windscreen (c) a switch contact (d) an umbrella cover
  10. 10.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  11. 11.Which of these needs a flexible material? (a) an umbrella cover (b) a yoga mat (c) a roof sheet (d) a car windscreen
  12. 12.🧱 Which property matters most for a water tank? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  13. 13.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  14. 14.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  16. 16.Which of these needs a heat insulator? (a) a cooking pot handle (b) a hair band (c) a water tank (d) a switch contact
  17. 17.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  18. 18.🧱 Which property matters most for a car windscreen? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  19. 19.Which of these needs a waterproof material? (a) a window pane (b) a magnifier lens (c) the core of a wire (d) a water tank
  20. 20.🧱 Which property matters most for a plug pin? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  21. 21.Which of these needs an electrical conductor? (a) the core of a wire (b) an umbrella cover (c) an oven glove (d) a tea flask lining
  22. 22.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  23. 23.🔍 Which is the odd one out? (a) plastic (b) graphite (c) rubber (d) cotton cloth
  24. 24.Which of these needs a transparent material? (a) a raincoat (b) a magnifier lens (c) an umbrella cover (d) a water tank
  25. 25.True or false: a plug pin needs a heat insulator. (a) True (b) False
  26. 26.🔍 Which is the odd one out? (a) graphite (b) rubber (c) aluminium (d) brass
  27. 27.True or false: a yoga mat needs a waterproof material. (a) False (b) True
  28. 28.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  29. 29.🧱 Which property matters most for a car seat belt? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  30. 30.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) dry wood (d) iron
  32. 32.🧱 Which property matters most for a raincoat? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  33. 33.True or false: a roof sheet needs a flexible material. (a) False (b) True
  34. 34.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  35. 35.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.Which of these needs a heat insulator? (a) a hair band (b) an umbrella cover (c) a raincoat (d) a tea flask lining
  37. 37.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.Which of these needs an electrical conductor? (a) a window pane (b) a plug pin (c) a magnifier lens (d) a car windscreen
  39. 39.Which of these needs a flexible material? (a) a plug pin (b) a boat hull (c) a hair band (d) a tea flask lining
  40. 40.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) brass (d) iron

Answer key

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

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