Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 312 · 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 is the odd one out? (a) adding cross bracing (b) fitting rubber base pads (c) adding steel to concrete (d) stacking loose bricks
2. 2.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) building tall and narrow (c) using flexible joints (d) keeping a simple shape
3. 3.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) having a wide base (c) fitting rubber base pads (d) raising heavy tanks high
4. 4.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) using a light roof (d) making brittle joints
6. 6.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
7. 7.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
8. 8.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) raising heavy tanks high (c) using a heavy roof (d) building tall and narrow
9. 9.🔍 Which is the odd one out? (a) adding steel to concrete (b) using a light roof (c) raising heavy tanks high (d) using flexible joints
10. 10.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) fitting rubber base pads (d) using a heavy roof
11. 11.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
12. 12.🔍 Which is the odd one out? (a) fitting rubber base pads (b) making brittle joints (c) building tall and narrow (d) using a heavy roof
13. 13.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) building tall and narrow (c) using flexible joints (d) stacking loose bricks
14. 14.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) making brittle joints (d) having a wide base
15. 15.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is taller (d) it is lighter
16. 16.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.🔍 Which is the odd one out? (a) using a heavy roof (b) raising heavy tanks high (c) adding cross bracing (d) building tall and narrow
18. 18.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a microscope (d) a telescope
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 320 cm tall on a 40 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
20. 20.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) adding steel to concrete (c) stacking loose bricks (d) using a heavy roof
21. 21.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they stop shaking (c) they bend, not break (d) they look nice
22. 22.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
24. 24.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using flexible joints (c) keeping a simple shape (d) leaving out steel bars
25. 25.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
26. 26.🔍 Which is the odd one out? (a) stacking loose bricks (b) keeping a simple shape (c) building tall and narrow (d) using a heavy roof
27. 27.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) using flexible joints (b) using a light roof (c) adding cross bracing (d) leaving out steel bars
29. 29.🔍 Which is the odd one out? (a) making brittle joints (b) using flexible joints (c) adding cross bracing (d) using a light roof
30. 30.🏚️ 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
31. 31.🏚️ 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 120 cm tall on a 40 cm base and tower C is 210 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
32. 32.🔍 Which is the odd one out? (a) building tall and narrow (b) making brittle joints (c) using a light roof (d) raising heavy tanks high
33. 33.🏚️ 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 120 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 B (b) tower A (c) tower C
34. 34.🏚️ 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 40 cm tall on a 20 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
35. 35.🏚️ 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 40 cm tall on a 10 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
36. 36.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
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 70 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 C (b) tower A (c) tower B
38. 38.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) building tall and narrow (c) adding cross bracing (d) stacking loose bricks
39. 39.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) having a wide base (c) stacking loose bricks (d) adding cross bracing
40. 40.🔍 Which is the odd one out? (a) having a wide base (b) using a heavy roof (c) using a light roof (d) adding cross bracing

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