Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 499 · 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 fridge (b) a microscope (c) a telescope (d) a shake table
2. 2.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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.🔍 Which is the odd one out? (a) adding cross bracing (b) using a heavy roof (c) using flexible joints (d) fitting rubber base pads
6. 6.🏚️ 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 60 cm tall on a 30 cm base and tower C is 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
7. 7.🔍 Which is the odd one out? (a) having a wide base (b) stacking loose bricks (c) adding steel to concrete (d) using flexible joints
8. 8.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
9. 9.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
10. 10.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
11. 11.🔍 Which is the odd one out? (a) adding cross bracing (b) fitting rubber base pads (c) raising heavy tanks high (d) adding steel to concrete
12. 12.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they are cheap (c) they look nice (d) they stop shaking
14. 14.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
15. 15.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
16. 16.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.🔍 Which is the odd one out? (a) adding steel to concrete (b) leaving out steel bars (c) using flexible joints (d) having a wide base
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.🏚️ 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 40 cm tall on a 40 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
20. 20.🔍 Which is the odd one out? (a) stacking loose bricks (b) using flexible joints (c) leaving out steel bars (d) building tall and narrow
21. 21.🔍 Which is the odd one out? (a) making brittle joints (b) having a wide base (c) using a heavy roof (d) raising heavy tanks high
22. 22.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is harder to tip over (d) it is lighter
23. 23.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) fitting rubber base pads (c) adding steel to concrete (d) keeping a simple shape
24. 24.🏚️ 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 80 cm tall on a 10 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
25. 25.🏚️ 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 90 cm tall on a 30 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
26. 26.🏚️ 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 200 cm tall on a 40 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
27. 27.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) using a heavy roof (b) raising heavy tanks high (c) keeping a simple shape (d) stacking loose bricks
29. 29.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) low down (c) on a thin pole (d) hanging outside
30. 30.🏚️ 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 40 cm tall on a 40 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
31. 31.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
32. 32.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding cross bracing (c) building tall and narrow (d) using flexible joints
33. 33.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a light roof (c) raising heavy tanks high (d) using a heavy roof
34. 34.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) raising heavy tanks high (c) using a heavy roof (d) having a wide base
35. 35.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
36. 36.🏚️ 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 10 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
37. 37.🔍 Which is the odd one out? (a) keeping a simple shape (b) using flexible joints (c) adding cross bracing (d) building tall and narrow
38. 38.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
39. 39.🏚️ 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 120 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
40. 40.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) using a heavy roof (d) using flexible joints

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