Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 262 · 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.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a light roof (c) using a heavy roof (d) using flexible joints
3. 3.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they bend, not break (d) they are cheap
4. 4.🏚️ 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 280 cm tall on a 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
5. 5.🔍 Which is the odd one out? (a) using a light roof (b) stacking loose bricks (c) using a heavy roof (d) making brittle joints
6. 6.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) using a heavy roof (b) adding cross bracing (c) leaving out steel bars (d) stacking loose bricks
8. 8.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
9. 9.🏚️ 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 160 cm tall on a 40 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
10. 10.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a light roof (c) adding steel to concrete (d) fitting rubber base pads
11. 11.🔍 Which is the odd one out? (a) fitting rubber base pads (b) leaving out steel bars (c) using a heavy roof (d) stacking loose bricks
12. 12.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
13. 13.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.🔍 Which is the odd one out? (a) adding cross bracing (b) having a wide base (c) making brittle joints (d) using flexible joints
15. 15.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) raising heavy tanks high (c) adding cross bracing (d) fitting rubber base pads
17. 17.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is colourful (d) it is taller
18. 18.🏚️ Three solid model towers are made of the same material. Tower A is 40 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 B (b) tower A (c) tower C
19. 19.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using flexible joints (c) making brittle joints (d) adding cross bracing
20. 20.🔍 Which is the odd one out? (a) using a light roof (b) using flexible joints (c) keeping a simple shape (d) leaving out steel bars
21. 21.🔍 Which is the odd one out? (a) making brittle joints (b) having a wide base (c) using a heavy roof (d) building tall and narrow
22. 22.🏚️ 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 40 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 C (b) tower A (c) tower B
23. 23.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) keeping a simple shape (c) stacking loose bricks (d) raising heavy tanks high
24. 24.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using flexible joints (c) stacking loose bricks (d) leaving out steel bars
25. 25.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) raising heavy tanks high (c) making brittle joints (d) adding steel to concrete
26. 26.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.🏚️ 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 40 cm tall on a 20 cm base and tower C is 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
28. 28.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) making brittle joints (c) stacking loose bricks (d) using a light roof
29. 29.🔍 Which is the odd one out? (a) adding steel to concrete (b) adding cross bracing (c) stacking loose bricks (d) using flexible joints
30. 30.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
31. 31.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 10 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 C (b) tower B (c) tower A
32. 32.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 240 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 A (b) tower C (c) tower B
33. 33.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.🏚️ 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
35. 35.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a heavy roof (c) fitting rubber base pads (d) using a light roof
36. 36.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) stacking loose bricks (c) adding steel to concrete (d) having a wide base
38. 38.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
39. 39.🏚️ 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 100 cm tall on a 20 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
40. 40.🏚️ 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 240 cm tall on a 40 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 B (c) tower A

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