Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 508 · 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.🏚️ 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 30 cm tall on a 10 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
2. 2.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a light roof (c) stacking loose bricks (d) raising heavy tanks high
3. 3.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
4. 4.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
5. 5.🏚️ 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 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
6. 6.🔍 Which is the odd one out? (a) having a wide base (b) making brittle joints (c) stacking loose bricks (d) leaving out steel bars
7. 7.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) building tall and narrow (c) using a heavy roof (d) stacking loose bricks
8. 8.🔍 Which is the odd one out? (a) fitting rubber base pads (b) raising heavy tanks high (c) leaving out steel bars (d) making brittle joints
9. 9.🔍 Which is the odd one out? (a) using a heavy roof (b) keeping a simple shape (c) leaving out steel bars (d) making brittle joints
10. 10.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) stacking loose bricks (c) having a wide base (d) adding cross bracing
11. 11.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
12. 12.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) keeping a simple shape (b) fitting rubber base pads (c) having a wide base (d) leaving out steel bars
14. 14.🏚️ Why is a wide base safer? (a) it is taller (b) it is lighter (c) it is colourful (d) it is harder to tip over
15. 15.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) leaving out steel bars (c) adding cross bracing (d) keeping a simple shape
16. 16.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using flexible joints (c) building tall and narrow (d) leaving out steel bars
19. 19.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
20. 20.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) adding steel to concrete (c) making brittle joints (d) using a heavy roof
21. 21.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) raising heavy tanks high (c) adding steel to concrete (d) using flexible joints
23. 23.🏚️ 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 20 cm tall on a 10 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
24. 24.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
25. 25.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a light roof (c) making brittle joints (d) adding cross bracing
26. 26.🔍 Which is the odd one out? (a) adding steel to concrete (b) having a wide base (c) using a light roof (d) raising heavy tanks high
27. 27.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
28. 28.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they stop shaking (c) they are cheap (d) they look nice
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.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) low down (c) on the very top (d) hanging outside
31. 31.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) making brittle joints (c) using a light roof (d) raising heavy tanks high
32. 32.🔍 Which is the odd one out? (a) using flexible joints (b) fitting rubber base pads (c) using a heavy roof (d) adding steel to concrete
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 70 cm tall on a 10 cm wide base, tower B is 100 cm tall on a 20 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
34. 34.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
36. 36.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
37. 37.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) building tall and narrow (b) using flexible joints (c) having a wide base (d) adding cross bracing
39. 39.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) adding cross bracing (c) using a heavy roof (d) stacking loose bricks
40. 40.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True

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