Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 67 · 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 of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) keeping a simple shape (c) raising heavy tanks high (d) adding cross bracing
2. 2.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
3. 3.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on the very top (c) low down (d) on a thin pole
4. 4.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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 60 cm tall on a 20 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
6. 6.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
7. 7.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
8. 8.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding steel to concrete (c) using a heavy roof (d) leaving out steel bars
10. 10.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
11. 11.🏚️ 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 20 cm tall on a 10 cm base and tower C is 40 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
12. 12.🏚️ 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 20 cm tall on a 10 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
13. 13.🔍 Which is the odd one out? (a) using a light roof (b) having a wide base (c) adding cross bracing (d) using a heavy roof
14. 14.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.🏚️ 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 60 cm tall on a 30 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
16. 16.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) having a wide base (c) using a light roof (d) building tall and narrow
17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
18. 18.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding cross bracing (c) building tall and narrow (d) adding steel to concrete
19. 19.🏚️ 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
20. 20.🏚️ 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 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 B (c) tower A
21. 21.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) having a wide base (c) using a heavy roof (d) stacking loose bricks
22. 22.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) raising heavy tanks high (d) keeping a simple shape
23. 23.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
24. 24.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.🏚️ 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
26. 26.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) stacking loose bricks (c) adding cross bracing (d) keeping a simple shape
27. 27.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) making brittle joints (b) having a wide base (c) adding steel to concrete (d) keeping a simple shape
30. 30.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
31. 31.🏚️ 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 90 cm tall on a 30 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
32. 32.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) raising heavy tanks high (c) making brittle joints (d) building tall and narrow
33. 33.🏚️ 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 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
34. 34.🏚️ 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 60 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
35. 35.🔍 Which is the odd one out? (a) making brittle joints (b) using a light roof (c) stacking loose bricks (d) raising heavy tanks high
36. 36.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) building tall and narrow (d) using flexible joints
37. 37.🏚️ 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 160 cm tall on a 40 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
38. 38.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.🔍 Which is the odd one out? (a) making brittle joints (b) adding cross bracing (c) using a heavy roof (d) stacking loose bricks

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