Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 147 · 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.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
2. 2.🏚️ 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 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
3. 3.🏚️ 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
4. 4.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) adding steel to concrete (d) raising heavy tanks high
5. 5.🏚️ 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 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
6. 6.🏚️ 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 40 cm tall on a 40 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
7. 7.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a heavy roof (c) keeping a simple shape (d) leaving out steel bars
8. 8.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) making brittle joints (d) using a light roof
9. 9.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding steel to concrete (c) leaving out steel bars (d) keeping a simple shape
10. 10.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
11. 11.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
12. 12.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
13. 13.🏚️ Does using a light roof 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 safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) raising heavy tanks high (d) using flexible joints
15. 15.🔍 Which is the odd one out? (a) having a wide base (b) building tall and narrow (c) adding cross bracing (d) using a light roof
16. 16.🏚️ 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 30 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 B (b) tower A (c) tower C
17. 17.🔍 Which is the odd one out? (a) using a light roof (b) raising heavy tanks high (c) adding cross bracing (d) using flexible joints
18. 18.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🏚️ Does keeping a simple shape 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) fitting rubber base pads (b) keeping a simple shape (c) using flexible joints (d) making brittle joints
22. 22.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is taller (d) it is colourful
23. 23.🔍 Which is the odd one out? (a) having a wide base (b) using a light roof (c) leaving out steel bars (d) fitting rubber base pads
24. 24.🔍 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
25. 25.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 30 cm tall on a 30 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
26. 26.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they are cheap (c) they look nice (d) they stop shaking
27. 27.🏚️ 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 80 cm tall on a 20 cm base and tower C is 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
28. 28.🏚️ 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 160 cm tall on a 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
29. 29.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
30. 30.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.🏚️ 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 150 cm tall on a 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
32. 32.🏚️ 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 90 cm tall on a 30 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
33. 33.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a heavy roof (c) keeping a simple shape (d) building tall and narrow
34. 34.🔍 Which is the odd one out? (a) adding steel to concrete (b) using flexible joints (c) using a heavy roof (d) keeping a simple shape
35. 35.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) using a light roof (c) adding cross bracing (d) having a wide base
36. 36.🏚️ 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 10 cm tall on a 10 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
37. 37.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.🏚️ 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 150 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
39. 39.🏚️ Does adding steel to concrete 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 40 cm tall on a 20 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A

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