Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 339 · 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 safer in earthquakes? (a) adding cross bracing (b) building tall and narrow (c) making brittle joints (d) leaving out steel bars
2. 2.🔍 Which is the odd one out? (a) raising heavy tanks high (b) keeping a simple shape (c) leaving out steel bars (d) using a heavy roof
3. 3.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding cross bracing (c) keeping a simple shape (d) stacking loose bricks
4. 4.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
5. 5.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they look nice (d) they stop shaking
7. 7.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) building tall and narrow (c) having a wide base (d) using a light roof
8. 8.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is harder to tip over (d) it is colourful
9. 9.🏚️ 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 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
10. 10.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) making brittle joints (d) adding steel to concrete
11. 11.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) low down (c) on the very top (d) on a thin pole
12. 12.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
13. 13.🏚️ 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 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
14. 14.🔍 Which is the odd one out? (a) stacking loose bricks (b) raising heavy tanks high (c) making brittle joints (d) using a light roof
15. 15.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
16. 16.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
19. 19.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) fitting rubber base pads (c) raising heavy tanks high (d) having a wide base
20. 20.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
21. 21.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a heavy roof (c) keeping a simple shape (d) using flexible joints
22. 22.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) adding cross bracing (b) using a heavy roof (c) adding steel to concrete (d) using flexible joints
25. 25.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
28. 28.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) adding steel to concrete (b) making brittle joints (c) fitting rubber base pads (d) keeping a simple shape
30. 30.🏚️ 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 120 cm tall on a 40 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
31. 31.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a light roof (c) building tall and narrow (d) fitting rubber base pads
32. 32.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) building tall and narrow (c) leaving out steel bars (d) keeping a simple shape
33. 33.🏚️ 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 60 cm tall on a 30 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 A (c) tower B
34. 34.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) using flexible joints (d) using a heavy roof
36. 36.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) fitting rubber base pads (d) using a heavy roof
37. 37.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
38. 38.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
39. 39.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding steel to concrete (c) having a wide base (d) leaving out steel bars
40. 40.🏚️ 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 30 cm tall on a 10 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C

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