Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 427 · 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 less safe in earthquakes? (a) adding cross bracing (b) making brittle joints (c) adding steel to concrete (d) fitting rubber base pads
2. 2.🔍 Which is the odd one out? (a) adding steel to concrete (b) building tall and narrow (c) using a heavy roof (d) raising heavy tanks high
3. 3.🏚️ 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
4. 4.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
6. 6.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) making brittle joints (d) adding cross bracing
7. 7.🔍 Which is the odd one out? (a) adding cross bracing (b) keeping a simple shape (c) adding steel to concrete (d) stacking loose bricks
8. 8.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) keeping a simple shape (d) building tall and narrow
9. 9.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
10. 10.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) adding steel to concrete (d) stacking loose bricks
11. 11.🏚️ Does having a wide base 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) making brittle joints (b) having a wide base (c) using flexible joints (d) adding steel to concrete
13. 13.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.🔍 Which is the odd one out? (a) building tall and narrow (b) raising heavy tanks high (c) stacking loose bricks (d) using flexible joints
16. 16.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) low down (c) on a thin pole (d) on the very top
17. 17.🔍 Which is the odd one out? (a) using a heavy roof (b) raising heavy tanks high (c) leaving out steel bars (d) keeping a simple shape
18. 18.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a shake table (d) a telescope
20. 20.🔍 Which is the odd one out? (a) having a wide base (b) adding cross bracing (c) fitting rubber base pads (d) using a heavy roof
21. 21.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) having a wide base (c) raising heavy tanks high (d) leaving out steel bars
22. 22.🔍 Which is the odd one out? (a) stacking loose bricks (b) having a wide base (c) using a heavy roof (d) making brittle joints
23. 23.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
24. 24.🏚️ Three solid model towers are made of the same material. Tower A is 70 cm tall on a 10 cm wide base, tower B is 100 cm tall on a 20 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 A (c) tower C
25. 25.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
28. 28.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
29. 29.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
30. 30.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) having a wide base (c) using a light roof (d) fitting rubber base pads
31. 31.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding steel to concrete (c) keeping a simple shape (d) leaving out steel bars
32. 32.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
33. 33.🏚️ 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 120 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 A (b) tower B (c) tower C
34. 34.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is harder to tip over (d) it is colourful
35. 35.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
36. 36.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.🔍 Which is the odd one out? (a) adding cross bracing (b) using flexible joints (c) using a light roof (d) raising heavy tanks high
38. 38.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
39. 39.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) building tall and narrow (d) using a light roof
40. 40.🏚️ 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 140 cm tall on a 20 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C

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