Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 373 · 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.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
3. 3.🏚️ 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 140 cm tall on a 20 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
4. 4.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) low down (d) on a thin pole
5. 5.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
6. 6.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they are cheap (c) they stop shaking (d) they look nice
7. 7.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) using a light roof (d) stacking loose bricks
8. 8.🔍 Which is the odd one out? (a) using a light roof (b) making brittle joints (c) using flexible joints (d) adding cross bracing
9. 9.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
10. 10.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) fitting rubber base pads (c) using flexible joints (d) adding steel to concrete
11. 11.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
12. 12.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
13. 13.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
14. 14.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a heavy roof (c) stacking loose bricks (d) adding cross bracing
15. 15.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) using a light roof (b) raising heavy tanks high (c) adding cross bracing (d) adding steel to concrete
17. 17.🔍 Which is the odd one out? (a) stacking loose bricks (b) using flexible joints (c) adding steel to concrete (d) fitting rubber base pads
18. 18.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
20. 20.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding cross bracing (c) making brittle joints (d) adding steel to concrete
21. 21.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
23. 23.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
24. 24.🏚️ 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 150 cm tall on a 30 cm base and tower C is 210 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
25. 25.🏚️ 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 80 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 B (b) tower A (c) tower C
26. 26.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.🔍 Which is the odd one out? (a) having a wide base (b) adding steel to concrete (c) leaving out steel bars (d) fitting rubber base pads
28. 28.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using flexible joints (c) adding cross bracing (d) raising heavy tanks high
29. 29.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) having a wide base (c) fitting rubber base pads (d) building tall and narrow
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 30 cm tall on a 30 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
31. 31.🏚️ 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 120 cm tall on a 40 cm base and tower C is 40 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
32. 32.🏚️ 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 120 cm tall on a 30 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
33. 33.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
34. 34.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
35. 35.🏚️ 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 50 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
36. 36.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is taller (c) it is lighter (d) it is colourful
37. 37.🏚️ 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 30 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
38. 38.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
39. 39.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
40. 40.🏚️ 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 200 cm tall on a 40 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B

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