Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 898 · 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) fitting rubber base pads (b) having a wide base (c) adding cross bracing (d) stacking loose bricks
2. 2.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
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 20 cm tall on a 10 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
4. 4.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
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 making brittle joints 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) keeping a simple shape (b) having a wide base (c) using a heavy roof (d) fitting rubber base pads
8. 8.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 30 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
9. 9.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) adding steel to concrete (c) raising heavy tanks high (d) having a wide base
10. 10.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) using a light roof (c) adding steel to concrete (d) using flexible joints
12. 12.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 160 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
13. 13.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is lighter (d) it is harder to tip over
14. 14.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding steel to concrete (c) stacking loose bricks (d) having a wide base
15. 15.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
16. 16.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
17. 17.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) using a light roof (b) leaving out steel bars (c) adding cross bracing (d) adding steel to concrete
19. 19.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they stop shaking (c) they are cheap (d) they look nice
21. 21.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
22. 22.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.🏚️ 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 160 cm tall on a 40 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
24. 24.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using flexible joints (c) having a wide base (d) building tall and narrow
25. 25.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
27. 27.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) keeping a simple shape (c) having a wide base (d) adding steel to concrete
28. 28.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) adding steel to concrete (d) raising heavy tanks high
30. 30.🏚️ Does adding steel to concrete 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 50 cm tall on a 10 cm wide base, tower B is 80 cm tall on a 40 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
32. 32.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) low down (c) hanging outside (d) on the very top
33. 33.🏚️ 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 30 cm tall on a 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
34. 34.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) using a heavy roof (d) fitting rubber base pads
35. 35.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
36. 36.🏚️ 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 60 cm tall on a 10 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
37. 37.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) leaving out steel bars (c) having a wide base (d) using a heavy roof
38. 38.🏚️ 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 80 cm tall on a 20 cm base and tower C is 320 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
39. 39.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a light roof (c) making brittle joints (d) building tall and narrow
40. 40.🔍 Which is the odd one out? (a) making brittle joints (b) keeping a simple shape (c) leaving out steel bars (d) raising heavy tanks high

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