Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 664 · 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) adding cross bracing (b) making brittle joints (c) fitting rubber base pads (d) having a wide base
2. 2.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
3. 3.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
4. 4.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a light roof (c) raising heavy tanks high (d) adding steel to concrete
5. 5.🔍 Which is the odd one out? (a) stacking loose bricks (b) raising heavy tanks high (c) adding cross bracing (d) leaving out steel bars
6. 6.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
7. 7.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
8. 8.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
10. 10.🏚️ 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 60 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
11. 11.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
12. 12.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
13. 13.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.🔍 Which is the odd one out? (a) using flexible joints (b) adding steel to concrete (c) having a wide base (d) using a heavy roof
15. 15.🔍 Which is the odd one out? (a) using a heavy roof (b) leaving out steel bars (c) building tall and narrow (d) fitting rubber base pads
16. 16.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
17. 17.🏚️ 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
18. 18.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding steel to concrete (c) keeping a simple shape (d) fitting rubber base pads
20. 20.🔍 Which is the odd one out? (a) leaving out steel bars (b) adding steel to concrete (c) fitting rubber base pads (d) using flexible joints
21. 21.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) using flexible joints (b) keeping a simple shape (c) adding steel to concrete (d) raising heavy tanks high
23. 23.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) low down (d) hanging outside
24. 24.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) adding cross bracing (c) fitting rubber base pads (d) using a light roof
26. 26.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) having a wide base (b) building tall and narrow (c) raising heavy tanks high (d) stacking loose bricks
28. 28.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a heavy roof (c) using a light roof (d) fitting rubber base pads
29. 29.🏚️ Why is a wide base safer? (a) it is colourful (b) it is lighter (c) it is harder to tip over (d) it is taller
30. 30.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) adding steel to concrete (c) leaving out steel bars (d) fitting rubber base pads
32. 32.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) making brittle joints (c) using a light roof (d) stacking loose bricks
33. 33.🏚️ 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 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
34. 34.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) building tall and narrow (c) keeping a simple shape (d) having a wide base
35. 35.🏚️ 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 150 cm tall on a 30 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
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 200 cm tall on a 40 cm base and tower C is 140 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
37. 37.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
38. 38.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a shake table (d) a telescope
39. 39.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
40. 40.🏚️ 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 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C

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