Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 314 · 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 safer in earthquakes? (a) stacking loose bricks (b) using flexible joints (c) building tall and narrow (d) raising heavy tanks high
2. 2.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
4. 4.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) on a thin pole (d) low down
5. 5.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
6. 6.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
8. 8.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they bend, not break (c) they are cheap (d) they stop shaking
9. 9.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) raising heavy tanks high (c) using a heavy roof (d) fitting rubber base pads
10. 10.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
11. 11.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
13. 13.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a fridge (d) a shake table
14. 14.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) adding steel to concrete (d) stacking loose bricks
16. 16.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
17. 17.🏚️ 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 60 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
18. 18.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) using a light roof (c) using flexible joints (d) adding steel to concrete
19. 19.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) stacking loose bricks (c) making brittle joints (d) building tall and narrow
20. 20.🏚️ 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 240 cm tall on a 40 cm base and tower C is 240 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
21. 21.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is lighter (c) it is colourful (d) it is taller
22. 22.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
24. 24.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
25. 25.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) making brittle joints (c) leaving out steel bars (d) using a light roof
26. 26.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) stacking loose bricks (c) using a heavy roof (d) having a wide base
27. 27.🏚️ 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 30 cm tall on a 10 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
28. 28.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
29. 29.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) adding steel to concrete (c) using flexible joints (d) using a light roof
30. 30.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
31. 31.🏚️ 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 120 cm tall on a 40 cm base and tower C is 140 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
32. 32.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 40 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
35. 35.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) building tall and narrow (d) using a light roof
36. 36.🔍 Which is the odd one out? (a) raising heavy tanks high (b) stacking loose bricks (c) leaving out steel bars (d) adding cross bracing
37. 37.🔍 Which is the odd one out? (a) having a wide base (b) adding cross bracing (c) keeping a simple shape (d) raising heavy tanks high
38. 38.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) using flexible joints (d) stacking loose bricks
39. 39.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) making brittle joints (c) adding steel to concrete (d) adding cross bracing
40. 40.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) adding steel to concrete (c) building tall and narrow (d) adding cross bracing

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