Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 23 · 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: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
2. 2.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a microscope (d) a telescope
3. 3.🔍 Which is the odd one out? (a) having a wide base (b) adding cross bracing (c) keeping a simple shape (d) stacking loose bricks
4. 4.🏚️ 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 120 cm tall on a 20 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
5. 5.🏚️ Does making brittle 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 less safe in earthquakes? (a) using a heavy roof (b) using a light roof (c) adding cross bracing (d) fitting rubber base pads
7. 7.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they stop shaking (c) they are cheap (d) they look nice
8. 8.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
12. 12.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) hanging outside (d) low down
13. 13.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) raising heavy tanks high (d) using a light roof
14. 14.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) using flexible joints (d) leaving out steel bars
16. 16.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) adding cross bracing (c) leaving out steel bars (d) adding steel to concrete
17. 17.🏚️ 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 30 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 A (b) tower C (c) tower B
18. 18.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a heavy roof (c) stacking loose bricks (d) using a light roof
19. 19.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) fitting rubber base pads (c) using a light roof (d) making brittle joints
21. 21.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) adding steel to concrete (d) using a heavy roof
22. 22.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) keeping a simple shape (d) making brittle joints
23. 23.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
24. 24.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.🏚️ 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 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 A (b) tower C (c) tower B
26. 26.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
27. 27.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) making brittle joints (c) using flexible joints (d) stacking loose bricks
28. 28.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
29. 29.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
30. 30.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
31. 31.🏚️ 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 40 cm tall on a 10 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
32. 32.🔍 Which is the odd one out? (a) keeping a simple shape (b) making brittle joints (c) using a heavy roof (d) leaving out steel bars
33. 33.🔍 Which is the odd one out? (a) adding steel to concrete (b) fitting rubber base pads (c) using a heavy roof (d) using flexible joints
34. 34.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) using flexible joints (c) keeping a simple shape (d) adding steel to concrete
35. 35.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
36. 36.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) building tall and narrow (c) adding steel to concrete (d) adding cross bracing
38. 38.🏚️ 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 30 cm tall on a 10 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
39. 39.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
40. 40.🏚️ 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 160 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

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