Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 541 · 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.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 210 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
3. 3.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 20 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
4. 4.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using flexible joints (c) making brittle joints (d) keeping a simple shape
6. 6.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) stacking loose bricks (c) raising heavy tanks high (d) keeping a simple shape
7. 7.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
10. 10.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) making brittle joints (d) using flexible joints
13. 13.🔍 Which is the odd one out? (a) using flexible joints (b) keeping a simple shape (c) stacking loose bricks (d) adding cross bracing
14. 14.🏚️ 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 80 cm tall on a 10 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
15. 15.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) fitting rubber base pads (d) building tall and narrow
16. 16.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a light roof (c) raising heavy tanks high (d) adding cross bracing
17. 17.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a heavy roof (c) using flexible joints (d) keeping a simple shape
18. 18.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) raising heavy tanks high (c) using a heavy roof (d) adding steel to concrete
19. 19.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) hanging outside (c) on the very top (d) on a thin pole
21. 21.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they bend, not break (d) they look nice
22. 22.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
23. 23.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) raising heavy tanks high (c) making brittle joints (d) using a light roof
24. 24.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) keeping a simple shape (c) using flexible joints (d) adding cross bracing
25. 25.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
26. 26.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) having a wide base (b) adding steel to concrete (c) leaving out steel bars (d) adding cross bracing
28. 28.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
30. 30.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) stacking loose bricks (d) having a wide base
31. 31.🏚️ 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 120 cm tall on a 30 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
32. 32.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
33. 33.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) using a light roof (c) adding steel to concrete (d) having a wide base
34. 34.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using a light roof (c) keeping a simple shape (d) leaving out steel bars
35. 35.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
36. 36.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
37. 37.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) stacking loose bricks (d) having a wide base
38. 38.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 60 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
40. 40.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True

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