Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 989 · 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) stacking loose bricks (b) leaving out steel bars (c) having a wide base (d) raising heavy tanks high
2. 2.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they look nice (d) they bend, not break
3. 3.🔍 Which is the odd one out? (a) making brittle joints (b) adding steel to concrete (c) keeping a simple shape (d) fitting rubber base pads
4. 4.🏚️ 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 40 cm tall on a 40 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 B (c) tower C
5. 5.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) having a wide base (c) using a heavy roof (d) using flexible joints
8. 8.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) using flexible joints (c) keeping a simple shape (d) fitting rubber base pads
9. 9.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
10. 10.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
11. 11.Which of these makes a building safer in earthquakes? (a) having a wide base (b) using a heavy roof (c) raising heavy tanks high (d) making brittle joints
12. 12.🔍 Which is the odd one out? (a) using flexible joints (b) fitting rubber base pads (c) leaving out steel bars (d) adding steel to concrete
13. 13.🔍 Which is the odd one out? (a) making brittle joints (b) building tall and narrow (c) using a light roof (d) raising heavy tanks high
14. 14.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) using a heavy roof (b) adding cross bracing (c) using flexible joints (d) using a light roof
17. 17.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
19. 19.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) low down (c) hanging outside (d) on a thin pole
20. 20.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
21. 21.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using flexible joints (c) leaving out steel bars (d) using a light roof
22. 22.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.🏚️ 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 50 cm tall on a 10 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 C (c) tower A
24. 24.🔍 Which is the odd one out? (a) using flexible joints (b) keeping a simple shape (c) building tall and narrow (d) fitting rubber base pads
25. 25.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) fitting rubber base pads (d) building tall and narrow
26. 26.🏚️ 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 50 cm tall on a 10 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
27. 27.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) keeping a simple shape (c) building tall and narrow (d) raising heavy tanks high
28. 28.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 10 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
29. 29.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
30. 30.🔍 Which is the odd one out? (a) adding cross bracing (b) stacking loose bricks (c) keeping a simple shape (d) adding steel to concrete
31. 31.🏚️ 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 240 cm tall on a 40 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) building tall and narrow (b) making brittle joints (c) stacking loose bricks (d) using a light roof
33. 33.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) fitting rubber base pads (c) having a wide base (d) making brittle joints
34. 34.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) raising heavy tanks high (d) fitting rubber base pads
35. 35.🏚️ 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 150 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 C (b) tower A (c) tower B
36. 36.🏚️ 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 20 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
37. 37.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
38. 38.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) stacking loose bricks (c) using flexible joints (d) using a heavy roof
39. 39.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) adding cross bracing (d) raising heavy tanks high

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