Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 326 · 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.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is harder to tip over (d) it is lighter
2. 2.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) building tall and narrow (d) using flexible joints
4. 4.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
5. 5.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using flexible joints (c) leaving out steel bars (d) adding steel to concrete
7. 7.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.🔍 Which is the odd one out? (a) making brittle joints (b) using a heavy roof (c) leaving out steel bars (d) having a wide base
9. 9.🏚️ 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
10. 10.🔍 Which is the odd one out? (a) having a wide base (b) making brittle joints (c) adding cross bracing (d) using a light roof
11. 11.🔍 Which is the odd one out? (a) using a light roof (b) fitting rubber base pads (c) leaving out steel bars (d) adding steel to concrete
12. 12.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
13. 13.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 cm wide base, tower B is 200 cm tall on a 40 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 C (c) tower A
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 30 cm wide base, tower B is 20 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
15. 15.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) building tall and narrow (c) having a wide base (d) using a heavy roof
16. 16.🔍 Which is the odd one out? (a) using a light roof (b) having a wide base (c) building tall and narrow (d) keeping a simple shape
17. 17.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
18. 18.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) hanging outside (c) on the very top (d) on a thin pole
19. 19.🔍 Which is the odd one out? (a) making brittle joints (b) keeping a simple shape (c) building tall and narrow (d) stacking loose bricks
20. 20.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
21. 21.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using a heavy roof (c) using flexible joints (d) fitting rubber base pads
22. 22.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding cross bracing (c) keeping a simple shape (d) adding steel to concrete
23. 23.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
24. 24.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) leaving out steel bars (c) using a heavy roof (d) adding steel to concrete
25. 25.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
27. 27.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) stacking loose bricks (c) leaving out steel bars (d) making brittle joints
29. 29.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 10 cm wide base, tower B is 60 cm tall on a 10 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
30. 30.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
31. 31.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) having a wide base
32. 32.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
33. 33.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a heavy roof (c) adding steel to concrete (d) using a light roof
35. 35.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.🏚️ 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 80 cm tall on a 40 cm base and tower C is 20 cm tall on a 20 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) adding cross bracing (b) fitting rubber base pads (c) stacking loose bricks (d) using flexible joints
38. 38.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
39. 39.🏚️ Does leaving out steel bars 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 150 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 20 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 B (c) tower C

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