Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 520 · 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.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) using flexible joints (b) adding cross bracing (c) adding steel to concrete (d) stacking loose bricks
3. 3.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
4. 4.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) leaving out steel bars (c) adding cross bracing (d) having a wide base
5. 5.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
6. 6.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a fridge (c) a telescope (d) a microscope
7. 7.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) making brittle joints (d) keeping a simple shape
8. 8.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
9. 9.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) using a heavy roof (d) using flexible joints
10. 10.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
12. 12.🏚️ 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 120 cm tall on a 30 cm base and tower C is 40 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
13. 13.🔍 Which is the odd one out? (a) raising heavy tanks high (b) building tall and narrow (c) stacking loose bricks (d) having a wide base
14. 14.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) building tall and narrow (d) using flexible joints
15. 15.🏚️ 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
16. 16.🔍 Which is the odd one out? (a) adding cross bracing (b) using a light roof (c) raising heavy tanks high (d) adding steel to concrete
17. 17.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) raising heavy tanks high (c) using flexible joints (d) keeping a simple shape
18. 18.🏚️ 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 150 cm tall on a 30 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
19. 19.🏚️ 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 10 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
20. 20.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
23. 23.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
24. 24.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) stacking loose bricks (d) adding steel to concrete
25. 25.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on the very top (c) on a thin pole (d) hanging outside
26. 26.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a heavy roof (c) making brittle joints (d) using a light roof
27. 27.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
29. 29.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) leaving out steel bars (d) adding cross bracing
32. 32.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
33. 33.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) fitting rubber base pads (c) leaving out steel bars (d) building tall and narrow
35. 35.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) using flexible joints (b) leaving out steel bars (c) adding cross bracing (d) using a light roof
37. 37.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using flexible joints (c) keeping a simple shape (d) making brittle joints
38. 38.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
39. 39.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) having a wide base (c) raising heavy tanks high (d) building tall and narrow
40. 40.🏚️ 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 50 cm tall on a 10 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C

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