Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 268 · 40 questions

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.

1. 1.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) fitting rubber base pads (c) having a wide base (d) using a heavy roof
2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 150 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 easiest to tip over? (a) tower A (b) tower C (c) tower B
3. 3.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) keeping a simple shape (d) using a heavy roof
4. 4.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
5. 5.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
6. 6.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
7. 7.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on a thin pole (c) on the very top (d) hanging outside
8. 8.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
9. 9.🏚️ Why is a wide base safer? (a) it is lighter (b) it is colourful (c) it is harder to tip over (d) it is taller
10. 10.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a light roof (c) making brittle joints (d) using a heavy roof
11. 11.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
12. 12.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they stop shaking (c) they bend, not break (d) they look nice
14. 14.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) raising heavy tanks high (d) fitting rubber base pads
15. 15.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 20 cm wide base, tower B is 10 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 B (b) tower C (c) tower A
16. 16.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using a light roof (c) stacking loose bricks (d) adding steel to concrete
17. 17.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) making brittle joints (c) raising heavy tanks high (d) building tall and narrow
18. 18.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
19. 19.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.🔍 Which is the odd one out? (a) raising heavy tanks high (b) keeping a simple shape (c) leaving out steel bars (d) building tall and narrow
22. 22.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.🔍 Which is the odd one out? (a) having a wide base (b) making brittle joints (c) using a light roof (d) using flexible joints
24. 24.🔍 Which is the odd one out? (a) using flexible joints (b) using a heavy roof (c) adding steel to concrete (d) keeping a simple shape
25. 25.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) adding steel to concrete (c) having a wide base (d) keeping a simple shape
26. 26.🔍 Which is the odd one out? (a) using flexible joints (b) fitting rubber base pads (c) adding steel to concrete (d) leaving out steel bars
27. 27.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 10 cm wide base, tower B is 200 cm tall on a 40 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
28. 28.🔍 Which is the odd one out? (a) building tall and narrow (b) adding cross bracing (c) adding steel to concrete (d) having a wide base
29. 29.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) using a light roof (d) raising heavy tanks high
31. 31.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
32. 32.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 210 cm tall on a 30 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
33. 33.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a heavy roof (c) building tall and narrow (d) having a wide base
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 200 cm tall on a 40 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
35. 35.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
36. 36.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
37. 37.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
38. 38.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
39. 39.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a light roof (c) making brittle joints (d) having a wide base

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