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Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 990 · 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.

NameDateTime takenScore ___ / 40
  1. 1.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) adding steel to concrete (c) having a wide base (d) stacking loose bricks
  2. 2.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
  3. 3.🔍 Which is the odd one out? (a) using a light roof (b) building tall and narrow (c) adding cross bracing (d) adding steel to concrete
  4. 4.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
  5. 5.Which of these makes a building safer in earthquakes? (a) using a light roof (b) using a heavy roof (c) making brittle joints (d) stacking loose bricks
  6. 6.🔍 Which is the odd one out? (a) using a heavy roof (b) having a wide base (c) raising heavy tanks high (d) making brittle joints
  7. 7.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
  8. 8.🔍 Which is the odd one out? (a) building tall and narrow (b) adding cross bracing (c) using a heavy roof (d) raising heavy tanks high
  9. 9.🔍 Which is the odd one out? (a) stacking loose bricks (b) having a wide base (c) adding cross bracing (d) adding steel to concrete
  10. 10.🏚️ Three solid model towers are made of the same material. Tower A is 50 cm tall on a 10 cm wide base, tower B is 180 cm tall on a 30 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
  11. 11.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
  12. 12.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
  13. 13.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
  14. 14.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
  15. 15.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
  16. 16.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) using a heavy roof (c) building tall and narrow (d) leaving out steel bars
  17. 17.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
  18. 18.🏚️ 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 140 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
  19. 19.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
  20. 20.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
  21. 21.🔍 Which is the odd one out? (a) having a wide base (b) using a light roof (c) adding steel to concrete (d) raising heavy tanks high
  22. 22.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
  23. 23.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
  24. 24.🔍 Which is the odd one out? (a) building tall and narrow (b) using a light roof (c) stacking loose bricks (d) using a heavy roof
  25. 25.🔍 Which is the odd one out? (a) fitting rubber base pads (b) building tall and narrow (c) leaving out steel bars (d) using a heavy roof
  26. 26.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
  27. 27.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
  28. 28.🏚️ Three solid model towers are made of the same material. Tower A is 210 cm tall on a 30 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
  29. 29.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) fitting rubber base pads (c) building tall and narrow (d) using a light roof
  30. 30.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
  31. 31.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
  32. 32.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) fitting rubber base pads (c) adding cross bracing (d) using flexible joints
  33. 33.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
  34. 34.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
  35. 35.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
  36. 36.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
  37. 37.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) raising heavy tanks high (c) keeping a simple shape (d) using flexible joints
  38. 38.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
  39. 39.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
  40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 30 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B

Answer key

  1. stacking loose bricks
  2. True
  3. building tall and narrow
  4. safer in earthquakes
  5. using a light roof
  6. having a wide base
  7. True
  8. adding cross bracing
  9. stacking loose bricks
  10. tower C
  11. False
  12. safer in earthquakes
  13. False
  14. False
  15. safer in earthquakes
  16. using flexible joints
  17. less safe
  18. tower B
  19. less safe
  20. less safe
  21. raising heavy tanks high
  22. safer in earthquakes
  23. False
  24. using a light roof
  25. fitting rubber base pads
  26. True
  27. tower A
  28. tower A
  29. building tall and narrow
  30. False
  31. less safe
  32. making brittle joints
  33. False
  34. False
  35. safer in earthquakes
  36. tower B
  37. raising heavy tanks high
  38. False
  39. less safe
  40. tower C

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