Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 347 · 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) keeping a simple shape (b) building tall and narrow (c) having a wide base (d) adding steel to concrete
2. 2.🏚️ 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 160 cm tall on a 40 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 A (c) tower B
3. 3.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.🔍 Which is the odd one out? (a) using a light roof (b) having a wide base (c) using flexible joints (d) leaving out steel bars
5. 5.🔍 Which is the odd one out? (a) making brittle joints (b) leaving out steel bars (c) stacking loose bricks (d) using flexible joints
6. 6.🏚️ Does stacking loose bricks 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 safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) leaving out steel bars (d) adding cross bracing
8. 8.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.🏚️ 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 20 cm base and tower C is 20 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
10. 10.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is lighter (d) it is taller
11. 11.🏚️ 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 100 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
12. 12.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a heavy roof (c) building tall and narrow (d) having a wide base
14. 14.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a fridge (d) a telescope
16. 16.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) adding steel to concrete (c) adding cross bracing (d) raising heavy tanks high
17. 17.🔍 Which is the odd one out? (a) fitting rubber base pads (b) raising heavy tanks high (c) making brittle joints (d) leaving out steel bars
18. 18.🔍 Which is the odd one out? (a) adding steel to concrete (b) fitting rubber base pads (c) stacking loose bricks (d) having a wide base
19. 19.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) low down (c) on the very top (d) on a thin pole
20. 20.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.🔍 Which is the odd one out? (a) using flexible joints (b) building tall and narrow (c) adding steel to concrete (d) fitting rubber base pads
24. 24.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
25. 25.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they stop shaking (c) they bend, not break (d) they look nice
26. 26.🔍 Which is the odd one out? (a) using a light roof (b) using a heavy roof (c) making brittle joints (d) leaving out steel bars
27. 27.🔍 Which is the odd one out? (a) making brittle joints (b) adding cross bracing (c) having a wide base (d) keeping a simple shape
28. 28.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
29. 29.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
30. 30.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
31. 31.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
32. 32.🏚️ 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 40 cm tall on a 10 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
33. 33.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) adding steel to concrete (c) keeping a simple shape (d) using a light roof
34. 34.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) fitting rubber base pads (c) making brittle joints (d) building tall and narrow
35. 35.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) having a wide base (c) leaving out steel bars (d) making brittle joints
36. 36.🏚️ 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 20 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
37. 37.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
38. 38.🏚️ Does using a light roof 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 180 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 280 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
40. 40.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True

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