Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 627 · 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: having a wide base makes a building less safe in earthquakes. (a) False (b) True
2. 2.🏚️ 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 60 cm tall on a 30 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
3. 3.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) building tall and narrow (c) having a wide base (d) keeping a simple shape
4. 4.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) low down (c) hanging outside (d) on a thin pole
5. 5.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) adding cross bracing (d) making brittle joints
6. 6.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.🔍 Which is the odd one out? (a) adding cross bracing (b) stacking loose bricks (c) using a heavy roof (d) leaving out steel bars
8. 8.🔍 Which is the odd one out? (a) using flexible joints (b) using a light roof (c) keeping a simple shape (d) leaving out steel bars
9. 9.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
10. 10.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a fridge (c) a microscope (d) a shake table
11. 11.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a heavy roof (c) keeping a simple shape (d) building tall and narrow
12. 12.🏚️ 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 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
13. 13.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
14. 14.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
15. 15.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) using a light roof (c) stacking loose bricks (d) raising heavy tanks high
16. 16.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
18. 18.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they stop shaking (c) they look nice (d) they bend, not break
20. 20.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) using flexible joints (d) using a heavy roof
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.🏚️ 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 50 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
23. 23.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a light roof (c) stacking loose bricks (d) adding cross bracing
24. 24.🔍 Which is the odd one out? (a) adding cross bracing (b) using flexible joints (c) making brittle joints (d) adding steel to concrete
25. 25.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a light roof (c) adding cross bracing (d) using a heavy roof
26. 26.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) raising heavy tanks high (d) adding steel to concrete
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.🔍 Which is the odd one out? (a) adding cross bracing (b) using a heavy roof (c) adding steel to concrete (d) having a wide base
31. 31.🔍 Which is the odd one out? (a) making brittle joints (b) using a light roof (c) leaving out steel bars (d) using a heavy roof
32. 32.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
33. 33.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) raising heavy tanks high (b) building tall and narrow (c) using a heavy roof (d) adding steel to concrete
35. 35.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) having a wide base (c) building tall and narrow (d) leaving out steel bars
36. 36.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
37. 37.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) keeping a simple shape (c) using flexible joints (d) adding cross bracing
38. 38.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) having a wide base (c) using flexible joints (d) keeping a simple shape
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 70 cm tall on a 10 cm wide base, tower B is 150 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B

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