Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 870 · 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.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a light roof (c) using flexible joints (d) leaving out steel bars
3. 3.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using flexible joints (c) having a wide base (d) adding steel to concrete
8. 8.🔍 Which is the odd one out? (a) adding cross bracing (b) adding steel to concrete (c) using a heavy roof (d) keeping a simple shape
9. 9.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
10. 10.🏚️ 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 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
11. 11.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
12. 12.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) making brittle joints (d) fitting rubber base pads
13. 13.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) having a wide base (d) adding cross bracing
14. 14.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
15. 15.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
16. 16.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
17. 17.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
20. 20.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding steel to concrete (c) using a light roof (d) making brittle joints
21. 21.🏚️ Why is a wide base safer? (a) it is colourful (b) it is lighter (c) it is taller (d) it is harder to tip over
22. 22.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.🔍 Which is the odd one out? (a) building tall and narrow (b) having a wide base (c) leaving out steel bars (d) using a heavy roof
24. 24.🔍 Which is the odd one out? (a) building tall and narrow (b) fitting rubber base pads (c) making brittle joints (d) raising heavy tanks high
25. 25.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using flexible joints (c) raising heavy tanks high (d) building tall and narrow
26. 26.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) leaving out steel bars (c) having a wide base (d) building tall and narrow
27. 27.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they bend, not break (d) they stop shaking
28. 28.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) using flexible joints (c) adding steel to concrete (d) adding cross bracing
29. 29.True or false: using a light roof 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 90 cm tall on a 30 cm wide base, tower B is 20 cm tall on a 20 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
31. 31.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a light roof (c) using flexible joints (d) building tall and narrow
32. 32.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
33. 33.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) stacking loose bricks (c) using flexible joints (d) keeping a simple shape
34. 34.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) adding cross bracing (d) using a heavy roof
35. 35.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) leaving out steel bars (d) keeping a simple shape
36. 36.🔍 Which is the odd one out? (a) building tall and narrow (b) keeping a simple shape (c) raising heavy tanks high (d) making brittle joints
37. 37.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a microscope (c) a telescope (d) a fridge
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 210 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
39. 39.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using a light roof (c) adding steel to concrete (d) using a heavy roof
40. 40.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) low down (c) on the very top (d) hanging outside

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