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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 238 · 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 tea flask lining? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  2. 2.True or false: an oven glove needs a heat insulator. (a) True (b) False
  3. 3.🧱 Which property matters most for a skipping rope? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  4. 4.🔍 Which is the odd one out? (a) plastic (b) rubber (c) cotton cloth (d) iron
  5. 5.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  7. 7.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.Which of these needs a heat insulator? (a) a car seat belt (b) an umbrella cover (c) a magnifier lens (d) a cooking pot handle
  9. 9.True or false: a hair band needs an electrical conductor. (a) True (b) False
  10. 10.True or false: a yoga mat needs an electrical conductor. (a) False (b) True
  11. 11.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  12. 12.Which of these needs a waterproof material? (a) a car seat belt (b) a car windscreen (c) a magnifier lens (d) a boat hull
  13. 13.Which of these needs a transparent material? (a) a raincoat (b) a skipping rope (c) a switch contact (d) a magnifier lens
  14. 14.🔍 Which is the odd one out? (a) plastic (b) glass (c) dry wood (d) brass
  15. 15.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  16. 16.Which of these needs a flexible material? (a) a car windscreen (b) a car seat belt (c) an oven glove (d) a window pane
  17. 17.Which of these needs a flexible material? (a) a window pane (b) a boat hull (c) a skipping rope (d) a car windscreen
  18. 18.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  20. 20.🧱 Which material is best for a window pane? (a) wood (b) glass (c) brick (d) steel
  21. 21.🔍 Which is the odd one out? (a) rubber (b) graphite (c) brass (d) iron
  22. 22.True or false: a car windscreen needs a flexible material. (a) True (b) False
  23. 23.🧱 Which property matters most for a magnifier lens? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  24. 24.Which of these needs a flexible material? (a) the core of a wire (b) a hair band (c) a car windscreen (d) a tea flask lining
  25. 25.🔍 Which is the odd one out? (a) steel (b) brass (c) clay pottery (d) copper
  26. 26.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  27. 27.Which of these needs a waterproof material? (a) a window pane (b) a raincoat (c) a car windscreen (d) the core of a wire
  28. 28.Which of these needs an electrical conductor? (a) a raincoat (b) the core of a wire (c) a cooking pot handle (d) a roof sheet
  29. 29.Which of these needs a transparent material? (a) a yoga mat (b) the core of a wire (c) a car windscreen (d) a raincoat
  30. 30.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  31. 31.Which of these needs a heat insulator? (a) a tea flask lining (b) a car windscreen (c) a roof sheet (d) an umbrella cover
  32. 32.Which of these needs a waterproof material? (a) a hair band (b) a plug pin (c) an umbrella cover (d) a car seat belt
  33. 33.True or false: a boat hull needs a heat insulator. (a) False (b) True
  34. 34.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  35. 35.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) copper (d) graphite
  36. 36.🔍 Which is the odd one out? (a) iron (b) aluminium (c) copper (d) plastic
  37. 37.True or false: a skipping rope needs a flexible material. (a) True (b) False
  38. 38.True or false: a boat hull needs a waterproof material. (a) False (b) True
  39. 39.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. heat insulator
  2. True
  3. flexible
  4. iron
  5. a conductor
  6. waterproof
  7. a conductor
  8. a cooking pot handle
  9. False
  10. False
  11. False
  12. a boat hull
  13. a magnifier lens
  14. brass
  15. True
  16. a car seat belt
  17. a skipping rope
  18. a conductor
  19. electrical conductor
  20. glass
  21. rubber
  22. False
  23. transparent
  24. a hair band
  25. clay pottery
  26. plastic-coated cloth
  27. a raincoat
  28. the core of a wire
  29. a car windscreen
  30. steel
  31. a tea flask lining
  32. an umbrella cover
  33. False
  34. flexible
  35. cotton cloth
  36. plastic
  37. True
  38. True
  39. an insulator
  40. an insulator

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