Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 590 · 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 using flexible joints 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 90 cm tall on a 30 cm wide base, tower B is 100 cm tall on a 20 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
3. 3.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) having a wide base (d) raising heavy tanks high
5. 5.🏚️ 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 30 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 A (b) tower C (c) tower B
6. 6.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
7. 7.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on a thin pole (c) low down (d) on the very top
8. 8.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) using flexible joints (b) using a light roof (c) leaving out steel bars (d) having a wide base
11. 11.Which of these makes a building safer in earthquakes? (a) using a light roof (b) making brittle joints (c) raising heavy tanks high (d) using a heavy roof
12. 12.🔍 Which is the odd one out? (a) using a heavy roof (b) having a wide base (c) building tall and narrow (d) leaving out steel bars
13. 13.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
14. 14.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they stop shaking (d) they look nice
15. 15.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
16. 16.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.🏚️ 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 160 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 B (c) tower C
18. 18.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) keeping a simple shape (c) building tall and narrow (d) adding steel to concrete
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 20 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 A (c) tower C
20. 20.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
23. 23.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
24. 24.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding steel to concrete (c) using a heavy roof (d) using flexible joints
25. 25.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
26. 26.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is colourful (c) it is lighter (d) it is taller
27. 27.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) using flexible joints (d) using a heavy roof
28. 28.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
30. 30.🔍 Which is the odd one out? (a) adding cross bracing (b) fitting rubber base pads (c) building tall and narrow (d) having a wide base
31. 31.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) stacking loose bricks (b) leaving out steel bars (c) adding cross bracing (d) making brittle joints
33. 33.🏚️ 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 80 cm tall on a 40 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
34. 34.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) building tall and narrow (c) adding cross bracing (d) using a heavy roof
35. 35.🔍 Which is the odd one out? (a) making brittle joints (b) using a heavy roof (c) fitting rubber base pads (d) stacking loose bricks
36. 36.🏚️ Three solid model towers are made of the same material. Tower A is 90 cm tall on a 30 cm wide base, tower B is 100 cm tall on a 20 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
37. 37.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) keeping a simple shape (c) using a light roof (d) making brittle joints
38. 38.🏚️ 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 120 cm tall on a 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
39. 39.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) leaving out steel bars (d) using flexible joints

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