Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 317 · 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.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
2. 2.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
3. 3.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) hanging outside (c) low down (d) on the very top
4. 4.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) having a wide base (c) using a heavy roof (d) fitting rubber base pads
5. 5.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a light roof (c) using a heavy roof (d) building tall and narrow
6. 6.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.🏚️ 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 150 cm tall on a 30 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
8. 8.🔍 Which is the odd one out? (a) leaving out steel bars (b) using flexible joints (c) raising heavy tanks high (d) building tall and narrow
9. 9.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a heavy roof (c) using a light roof (d) adding steel to concrete
11. 11.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a light roof (c) raising heavy tanks high (d) using flexible joints
13. 13.🏚️ 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 150 cm tall on a 30 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
14. 14.🔍 Which is the odd one out? (a) adding cross bracing (b) adding steel to concrete (c) having a wide base (d) leaving out steel bars
15. 15.🏚️ 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 80 cm tall on a 20 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
16. 16.🏚️ 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 40 cm tall on a 20 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
17. 17.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a microscope (c) a telescope (d) a shake table
18. 18.🏚️ 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 180 cm tall on a 30 cm base and tower C is 80 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
19. 19.🏚️ 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 30 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 A (c) tower B
20. 20.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they stop shaking (d) they bend, not break
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 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
22. 22.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
23. 23.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.🔍 Which is the odd one out? (a) using a light roof (b) making brittle joints (c) having a wide base (d) keeping a simple shape
25. 25.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) making brittle joints (c) using a heavy roof (d) building tall and narrow
27. 27.🏚️ 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 40 cm tall on a 10 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
28. 28.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
29. 29.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 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 B (b) tower A (c) tower C
31. 31.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
32. 32.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 120 cm tall on a 30 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 C (c) tower A
33. 33.🔍 Which is the odd one out? (a) having a wide base (b) adding steel to concrete (c) building tall and narrow (d) using a light roof
34. 34.🏚️ Why is a wide base safer? (a) it is taller (b) it is lighter (c) it is harder to tip over (d) it is colourful
35. 35.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) adding cross bracing (c) keeping a simple shape (d) leaving out steel bars
37. 37.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
38. 38.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
39. 39.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
40. 40.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) using flexible joints (d) making brittle joints

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