Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 497 · 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: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
2. 2.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
3. 3.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
4. 4.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
5. 5.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) raising heavy tanks high (d) using flexible joints
6. 6.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
7. 7.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) using a heavy roof (c) fitting rubber base pads (d) adding steel to concrete
8. 8.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they look nice (c) they stop shaking (d) they are cheap
9. 9.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 60 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
10. 10.🏚️ 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 80 cm tall on a 40 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
11. 11.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
14. 14.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.🏚️ 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 30 cm tall on a 10 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
16. 16.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) raising heavy tanks high (c) building tall and narrow (d) using a light roof
17. 17.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a fridge (d) a telescope
18. 18.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
19. 19.🏚️ 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 180 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
20. 20.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) building tall and narrow (c) using a heavy roof (d) adding cross bracing
21. 21.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
22. 22.🏚️ 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 120 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
23. 23.🏚️ 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 120 cm tall on a 30 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 of these makes a building less safe in earthquakes? (a) using a light roof (b) building tall and narrow (c) fitting rubber base pads (d) having a wide base
25. 25.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
26. 26.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) stacking loose bricks (c) adding steel to concrete (d) using a light roof
27. 27.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
30. 30.🏚️ 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 20 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
31. 31.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using flexible joints (c) making brittle joints (d) using a light roof
32. 32.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a heavy roof (c) having a wide base (d) stacking loose bricks
33. 33.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
34. 34.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) keeping a simple shape (c) raising heavy tanks high (d) leaving out steel bars
35. 35.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) raising heavy tanks high (d) having a wide base
37. 37.🔍 Which is the odd one out? (a) building tall and narrow (b) stacking loose bricks (c) using a heavy roof (d) using a light roof
38. 38.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on a thin pole (c) low down (d) on the very top
39. 39.🔍 Which is the odd one out? (a) fitting rubber base pads (b) having a wide base (c) using flexible joints (d) leaving out steel bars
40. 40.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

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