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Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 397 · 40 questions
TalentJR

Engineer's tip (Low, wide, flexible): Safer: wide base, flexible joints, bracing, steel in concrete, light roof, rubber pads, simple shape. Less safe: heavy tops, narrow bases, loose bricks, no steel, brittle joints. Tipping: compare height ÷ base width — the smaller it is, the steadier the block.

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  1. 1.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
  2. 2.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) having a wide base (c) using a heavy roof (d) building tall and narrow
  3. 3.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) using a heavy roof (d) having a wide base
  4. 4.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
  5. 5.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 140 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
  6. 6.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
  7. 7.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 10 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
  8. 8.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) keeping a simple shape (d) stacking loose bricks
  9. 9.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
  10. 10.🔍 Which is the odd one out? (a) making brittle joints (b) adding cross bracing (c) fitting rubber base pads (d) using flexible joints
  11. 11.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
  12. 12.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) raising heavy tanks high (c) having a wide base (d) fitting rubber base pads
  13. 13.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
  14. 14.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) adding cross bracing (c) using flexible joints (d) adding steel to concrete
  15. 15.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
  16. 16.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
  17. 17.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) stacking loose bricks (c) raising heavy tanks high (d) using a light roof
  18. 18.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
  19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 10 cm wide base, tower B is 20 cm tall on a 20 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
  20. 20.🔍 Which is the odd one out? (a) using a light roof (b) leaving out steel bars (c) using flexible joints (d) having a wide base
  21. 21.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) keeping a simple shape (c) having a wide base (d) stacking loose bricks
  22. 22.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is colourful (d) it is taller
  23. 23.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
  24. 24.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 10 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
  25. 25.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
  26. 26.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
  27. 27.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) having a wide base (c) building tall and narrow (d) adding steel to concrete
  28. 28.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
  29. 29.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) leaving out steel bars (c) building tall and narrow (d) using flexible joints
  30. 30.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
  31. 31.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a light roof (c) using flexible joints (d) adding steel to concrete
  32. 32.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
  33. 33.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
  34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
  35. 35.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) adding cross bracing (c) keeping a simple shape (d) making brittle joints
  36. 36.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
  37. 37.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) making brittle joints (d) adding steel to concrete
  39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 40 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 140 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
  40. 40.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False

Answer key

  1. less safe
  2. having a wide base
  3. having a wide base
  4. False
  5. tower B
  6. less safe
  7. tower A
  8. keeping a simple shape
  9. less safe
  10. making brittle joints
  11. False
  12. raising heavy tanks high
  13. safer in earthquakes
  14. leaving out steel bars
  15. safer in earthquakes
  16. False
  17. using a light roof
  18. False
  19. tower B
  20. leaving out steel bars
  21. stacking loose bricks
  22. it is harder to tip over
  23. safer in earthquakes
  24. tower C
  25. True
  26. tower A
  27. building tall and narrow
  28. True
  29. using flexible joints
  30. less safe
  31. stacking loose bricks
  32. safer in earthquakes
  33. False
  34. tower A
  35. making brittle joints
  36. tower A
  37. True
  38. adding steel to concrete
  39. tower A
  40. False

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