Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 745 · 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 is the odd one out? (a) building tall and narrow (b) adding steel to concrete (c) using flexible joints (d) using a light roof
2. 2.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) having a wide base (c) making brittle joints (d) building tall and narrow
3. 3.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) hanging outside (c) on the very top (d) on a thin pole
4. 4.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) building tall and narrow (c) using flexible joints (d) adding cross bracing
5. 5.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) raising heavy tanks high (d) using flexible joints
7. 7.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
8. 8.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
9. 9.🏚️ 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 40 cm tall on a 10 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
10. 10.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) making brittle joints (c) leaving out steel bars (d) raising heavy tanks high
11. 11.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) using a heavy roof (c) having a wide base (d) using flexible joints
12. 12.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
13. 13.🏚️ 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 20 cm tall on a 10 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
14. 14.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) adding cross bracing (c) building tall and narrow (d) raising heavy tanks high
15. 15.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) raising heavy tanks high (d) adding steel to concrete
16. 16.🔍 Which is the odd one out? (a) building tall and narrow (b) stacking loose bricks (c) using a heavy roof (d) having a wide base
17. 17.🏚️ 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 40 cm tall on a 10 cm base and tower C is 20 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
18. 18.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.🔍 Which is the odd one out? (a) having a wide base (b) stacking loose bricks (c) using flexible joints (d) adding cross bracing
20. 20.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding cross bracing (c) leaving out steel bars (d) having a wide base
21. 21.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) making brittle joints (c) adding cross bracing (d) keeping a simple shape
23. 23.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they look nice (c) they are cheap (d) they stop shaking
24. 24.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.🔍 Which is the odd one out? (a) fitting rubber base pads (b) making brittle joints (c) stacking loose bricks (d) using a heavy roof
26. 26.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.🔍 Which is the odd one out? (a) using a light roof (b) using flexible joints (c) leaving out steel bars (d) adding steel to concrete
28. 28.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a telescope (c) a microscope (d) a shake table
30. 30.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
31. 31.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
32. 32.🏚️ 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 20 cm tall on a 10 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
33. 33.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 40 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
35. 35.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
36. 36.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
37. 37.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) stacking loose bricks (c) using a heavy roof (d) fitting rubber base pads
38. 38.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
40. 40.🏚️ 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 40 cm tall on a 20 cm base and tower C is 10 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A

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