Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 905 · 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 adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
4. 4.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.🔍 Which is the odd one out? (a) having a wide base (b) adding cross bracing (c) adding steel to concrete (d) leaving out steel bars
6. 6.🏚️ 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
7. 7.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a telescope (c) a microscope (d) a fridge
8. 8.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) building tall and narrow (c) adding cross bracing (d) adding steel to concrete
9. 9.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using flexible joints (c) leaving out steel bars (d) building tall and narrow
11. 11.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) stacking loose bricks (b) raising heavy tanks high (c) keeping a simple shape (d) using a heavy roof
13. 13.🔍 Which is the odd one out? (a) building tall and narrow (b) adding steel to concrete (c) raising heavy tanks high (d) using a heavy roof
14. 14.🏚️ Does using flexible joints 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 less safe in earthquakes? (a) having a wide base (b) using a light roof (c) adding steel to concrete (d) leaving out steel bars
16. 16.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
17. 17.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) using flexible joints (b) making brittle joints (c) leaving out steel bars (d) building tall and narrow
19. 19.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) using a heavy roof (b) keeping a simple shape (c) adding steel to concrete (d) fitting rubber base pads
21. 21.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) building tall and narrow (c) using a heavy roof (d) leaving out steel bars
22. 22.🔍 Which is the odd one out? (a) having a wide base (b) building tall and narrow (c) fitting rubber base pads (d) adding steel to concrete
23. 23.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 40 cm wide base, tower B is 280 cm tall on a 40 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
24. 24.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 20 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
25. 25.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they stop shaking (d) they look nice
26. 26.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) adding cross bracing (b) building tall and narrow (c) using a heavy roof (d) making brittle joints
28. 28.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a light roof (c) leaving out steel bars (d) using a heavy roof
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
31. 31.🏚️ 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 120 cm tall on a 30 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
32. 32.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
34. 34.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) stacking loose bricks (c) using a heavy roof (d) having a wide base
35. 35.🏚️ Three solid model towers are made of the same material. Tower A is 50 cm tall on a 10 cm wide base, tower B is 80 cm tall on a 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
36. 36.🏚️ Does fitting rubber base pads 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) raising heavy tanks high (b) using a heavy roof (c) fitting rubber base pads (d) making brittle joints
38. 38.🏚️ 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 20 cm tall on a 20 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
39. 39.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) stacking loose bricks (d) keeping a simple shape
40. 40.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is lighter (d) it is taller

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