Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 377 · 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 using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🏚️ Why is a wide base safer? (a) it is taller (b) it is harder to tip over (c) it is colourful (d) it is lighter
3. 3.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) making brittle joints (d) having a wide base
5. 5.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
6. 6.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
8. 8.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
9. 9.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
10. 10.🏚️ 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 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
11. 11.🔍 Which is the odd one out? (a) making brittle joints (b) raising heavy tanks high (c) using a light roof (d) leaving out steel bars
12. 12.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) stacking loose bricks (c) fitting rubber base pads (d) having a wide base
13. 13.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) leaving out steel bars (c) having a wide base (d) keeping a simple shape
14. 14.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding cross bracing (c) having a wide base (d) making brittle joints
15. 15.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) adding steel to concrete (d) making brittle joints
16. 16.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) raising heavy tanks high (d) using flexible joints
17. 17.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) having a wide base (c) fitting rubber base pads (d) adding cross bracing
19. 19.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding cross bracing (c) raising heavy tanks high (d) adding steel to concrete
20. 20.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.🏚️ 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 80 cm tall on a 20 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
22. 22.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) hanging outside (d) low down
23. 23.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
24. 24.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a heavy roof (c) adding cross bracing (d) leaving out steel bars
25. 25.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) fitting rubber base pads (c) stacking loose bricks (d) leaving out steel bars
26. 26.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
27. 27.🏚️ 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 240 cm tall on a 40 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
28. 28.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
29. 29.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) adding cross bracing (c) using a heavy roof (d) having a wide base
30. 30.🏚️ 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
31. 31.🏚️ 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 20 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
32. 32.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.🏚️ 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 240 cm tall on a 40 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
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 cm wide base, tower B is 200 cm tall on a 40 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
35. 35.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) making brittle joints (c) keeping a simple shape (d) using a heavy roof
36. 36.🔍 Which is the odd one out? (a) raising heavy tanks high (b) keeping a simple shape (c) using a heavy roof (d) building tall and narrow
37. 37.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
38. 38.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
39. 39.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) using flexible joints (d) raising heavy tanks high

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