Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 420 · 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 shake table (b) a microscope (c) a fridge (d) a telescope
2. 2.🔍 Which is the odd one out? (a) having a wide base (b) building tall and narrow (c) raising heavy tanks high (d) using a heavy roof
3. 3.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🔍 Which is the odd one out? (a) leaving out steel bars (b) keeping a simple shape (c) raising heavy tanks high (d) using a heavy roof
6. 6.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 20 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
8. 8.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they look nice (d) they bend, not break
9. 9.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is taller (c) it is lighter (d) it is colourful
10. 10.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
11. 11.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
12. 12.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) adding steel to concrete (c) leaving out steel bars (d) making brittle joints
13. 13.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
15. 15.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) having a wide base (b) adding cross bracing (c) making brittle joints (d) using flexible joints
17. 17.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using flexible joints (c) fitting rubber base pads (d) leaving out steel bars
18. 18.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) building tall and narrow (d) using flexible joints
20. 20.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a light roof (c) raising heavy tanks high (d) leaving out steel bars
21. 21.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) having a wide base (c) adding cross bracing (d) making brittle joints
22. 22.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a light roof (c) using a heavy roof (d) using flexible joints
23. 23.🏚️ 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 200 cm tall on a 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
24. 24.🏚️ 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 180 cm tall on a 30 cm base and tower C is 320 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
25. 25.🔍 Which is the odd one out? (a) adding steel to concrete (b) making brittle joints (c) building tall and narrow (d) using a heavy roof
26. 26.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
27. 27.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
28. 28.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
29. 29.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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 10 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
31. 31.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) stacking loose bricks (c) having a wide base (d) adding cross bracing
32. 32.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) adding cross bracing (c) raising heavy tanks high (d) keeping a simple shape
33. 33.🔍 Which is the odd one out? (a) adding steel to concrete (b) keeping a simple shape (c) stacking loose bricks (d) using a light roof
34. 34.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) low down (d) on a thin pole
35. 35.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
36. 36.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
37. 37.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 30 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
38. 38.🏚️ 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 210 cm tall on a 30 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
39. 39.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
40. 40.🏚️ 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 280 cm tall on a 40 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A

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