Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 127 · 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) leaving out steel bars (b) having a wide base (c) making brittle joints (d) stacking loose bricks
2. 2.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a telescope (c) a shake table (d) a microscope
4. 4.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) stacking loose bricks (c) adding steel to concrete (d) having a wide base
5. 5.🏚️ Why is a wide base safer? (a) it is taller (b) it is lighter (c) it is colourful (d) it is harder to tip over
6. 6.🔍 Which is the odd one out? (a) using flexible joints (b) using a light roof (c) fitting rubber base pads (d) building tall and narrow
7. 7.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
8. 8.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) keeping a simple shape (c) building tall and narrow (d) using a heavy roof
9. 9.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they stop shaking (d) they bend, not break
10. 10.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) keeping a simple shape (c) adding steel to concrete (d) leaving out steel bars
11. 11.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
12. 12.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🏚️ 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 120 cm tall on a 40 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
14. 14.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using flexible joints (c) adding cross bracing (d) raising heavy tanks high
15. 15.🔍 Which is the odd one out? (a) adding steel to concrete (b) using flexible joints (c) having a wide base (d) making brittle joints
16. 16.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) stacking loose bricks (c) building tall and narrow (d) adding cross bracing
17. 17.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🔍 Which is the odd one out? (a) using flexible joints (b) using a heavy roof (c) building tall and narrow (d) stacking loose bricks
20. 20.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) raising heavy tanks high (c) leaving out steel bars (d) building tall and narrow
22. 22.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on a thin pole (c) hanging outside (d) on the very top
23. 23.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
24. 24.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.🔍 Which is the odd one out? (a) keeping a simple shape (b) stacking loose bricks (c) making brittle joints (d) building tall and narrow
26. 26.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
27. 27.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
28. 28.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
29. 29.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) adding cross bracing
30. 30.🏚️ 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 10 cm base and tower C is 140 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
31. 31.🏚️ 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 40 cm tall on a 10 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
32. 32.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
34. 34.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) using a heavy roof (b) stacking loose bricks (c) making brittle joints (d) adding cross bracing
36. 36.🏚️ Does adding steel to concrete 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) having a wide base (b) using a heavy roof (c) raising heavy tanks high (d) making brittle joints
38. 38.🔍 Which is the odd one out? (a) keeping a simple shape (b) fitting rubber base pads (c) using a heavy roof (d) using a light roof
39. 39.🔍 Which is the odd one out? (a) using a heavy roof (b) fitting rubber base pads (c) leaving out steel bars (d) building tall and narrow
40. 40.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) using a light roof (d) adding steel to concrete

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