Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 183 · 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 safer in earthquakes? (a) stacking loose bricks (b) raising heavy tanks high (c) building tall and narrow (d) adding cross bracing
2. 2.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) using flexible joints (b) using a heavy roof (c) adding cross bracing (d) having a wide base
4. 4.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
5. 5.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) making brittle joints (c) building tall and narrow (d) using a heavy roof
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: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
8. 8.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 10 cm wide base, tower B is 10 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 A (b) tower B (c) tower C
9. 9.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a telescope (d) a fridge
10. 10.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) building tall and narrow (c) adding steel to concrete (d) adding cross bracing
11. 11.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) using a light roof (c) adding cross bracing (d) adding steel to concrete
12. 12.🏚️ 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
13. 13.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
14. 14.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) having a wide base (c) using a light roof (d) keeping a simple shape
15. 15.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.🏚️ 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 80 cm tall on a 10 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
17. 17.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on the very top (c) on a thin pole (d) low down
18. 18.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) having a wide base (c) leaving out steel bars (d) stacking loose bricks
19. 19.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they bend, not break (d) they are cheap
20. 20.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a light roof (c) stacking loose bricks (d) using a heavy roof
22. 22.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
23. 23.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 20 cm wide base, tower B is 100 cm tall on a 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
24. 24.🏚️ 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 150 cm tall on a 30 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
25. 25.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
26. 26.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
27. 27.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 200 cm tall on a 40 cm base and tower C is 120 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: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
29. 29.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) adding steel to concrete (c) stacking loose bricks (d) leaving out steel bars
30. 30.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding steel to concrete (c) using a light roof (d) keeping a simple shape
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 20 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
32. 32.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.🏚️ 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 150 cm tall on a 30 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
34. 34.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
35. 35.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 80 cm tall on a 20 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 C (c) tower A
36. 36.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) building tall and narrow (b) using a light roof (c) fitting rubber base pads (d) having a wide base
38. 38.🔍 Which is the odd one out? (a) using a heavy roof (b) stacking loose bricks (c) making brittle joints (d) keeping a simple shape
39. 39.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 100 cm tall on a 20 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 A (c) tower B

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