Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 361 · 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.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a microscope (c) a telescope (d) a shake table
2. 2.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
6. 6.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on the very top (c) hanging outside (d) on a thin pole
7. 7.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using flexible joints (c) building tall and narrow (d) using a light roof
8. 8.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
9. 9.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
10. 10.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using flexible joints (c) making brittle joints (d) leaving out steel bars
11. 11.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) having a wide base (c) fitting rubber base pads (d) raising heavy tanks high
12. 12.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) keeping a simple shape (c) using flexible joints (d) fitting rubber base pads
13. 13.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
15. 15.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they stop shaking (c) they are cheap (d) they look nice
16. 16.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
17. 17.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
18. 18.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 60 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
19. 19.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
20. 20.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) adding steel to concrete (d) stacking loose bricks
22. 22.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a heavy roof (c) building tall and narrow (d) keeping a simple shape
23. 23.🏚️ 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 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
24. 24.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) using flexible joints (b) adding steel to concrete (c) stacking loose bricks (d) using a light roof
26. 26.🏚️ 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 120 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
27. 27.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
28. 28.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using a heavy roof (c) using a light roof (d) using flexible joints
29. 29.🏚️ 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 60 cm tall on a 30 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
30. 30.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) having a wide base (c) building tall and narrow (d) fitting rubber base pads
31. 31.🏚️ 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 120 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 B (c) tower A
32. 32.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
33. 33.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
34. 34.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a light roof (c) fitting rubber base pads (d) leaving out steel bars
35. 35.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) making brittle joints (c) building tall and narrow (d) adding cross bracing
37. 37.🔍 Which is the odd one out? (a) having a wide base (b) fitting rubber base pads (c) keeping a simple shape (d) leaving out steel bars
38. 38.🔍 Which is the odd one out? (a) raising heavy tanks high (b) making brittle joints (c) using a heavy roof (d) using flexible joints
39. 39.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.🔍 Which is the odd one out? (a) fitting rubber base pads (b) making brittle joints (c) using a heavy roof (d) building tall and narrow

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