Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 569 · 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) having a wide base (b) using flexible joints (c) using a light roof (d) stacking loose bricks
2. 2.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a heavy roof (c) keeping a simple shape (d) leaving out steel bars
3. 3.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is lighter (c) it is taller (d) it is colourful
4. 4.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a light roof (c) building tall and narrow (d) raising heavy tanks high
8. 8.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a light roof (c) adding steel to concrete (d) raising heavy tanks high
10. 10.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) leaving out steel bars (c) using a light roof (d) fitting rubber base pads
11. 11.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
12. 12.🏚️ 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
13. 13.🔍 Which is the odd one out? (a) building tall and narrow (b) keeping a simple shape (c) stacking loose bricks (d) raising heavy tanks high
14. 14.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using flexible joints (c) keeping a simple shape (d) making brittle joints
15. 15.🏚️ 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 100 cm tall on a 20 cm base and tower C is 20 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
16. 16.🔍 Which is the odd one out? (a) using a heavy roof (b) having a wide base (c) keeping a simple shape (d) adding cross bracing
17. 17.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on a thin pole (c) hanging outside (d) on the very top
18. 18.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) fitting rubber base pads (c) adding cross bracing (d) using a light roof
20. 20.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) building tall and narrow (c) using a heavy roof (d) using a light roof
21. 21.🔍 Which is the odd one out? (a) having a wide base (b) using a heavy roof (c) building tall and narrow (d) stacking loose bricks
22. 22.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) using flexible joints (d) using a heavy roof
23. 23.🏚️ 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 50 cm tall on a 10 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
24. 24.🏚️ 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 30 cm tall on a 30 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
25. 25.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 20 cm tall on a 20 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
26. 26.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
28. 28.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) raising heavy tanks high (c) having a wide base (d) leaving out steel bars
29. 29.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) fitting rubber base pads (d) stacking loose bricks
30. 30.🏚️ 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 80 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
31. 31.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
32. 32.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.🏚️ 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 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
34. 34.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
35. 35.🏚️ 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 30 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
36. 36.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
37. 37.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
38. 38.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a heavy roof (c) building tall and narrow (d) stacking loose bricks
40. 40.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

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