Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 473 · 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 less safe in earthquakes? (a) adding cross bracing (b) building tall and narrow (c) using a light roof (d) using flexible joints
2. 2.🔍 Which is the odd one out? (a) fitting rubber base pads (b) raising heavy tanks high (c) adding cross bracing (d) having a wide base
3. 3.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.🔍 Which is the odd one out? (a) fitting rubber base pads (b) stacking loose bricks (c) adding cross bracing (d) using a light roof
5. 5.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) raising heavy tanks high (c) stacking loose bricks (d) making brittle joints
6. 6.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) low down (d) on a thin pole
7. 7.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they are cheap (d) they look nice
8. 8.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) fitting rubber base pads (c) stacking loose bricks (d) making brittle joints
9. 9.🔍 Which is the odd one out? (a) adding steel to concrete (b) keeping a simple shape (c) using a light roof (d) building tall and narrow
10. 10.🔍 Which is the odd one out? (a) making brittle joints (b) raising heavy tanks high (c) fitting rubber base pads (d) stacking loose bricks
11. 11.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a light roof (c) leaving out steel bars (d) keeping a simple shape
12. 12.🔍 Which is the odd one out? (a) having a wide base (b) using a heavy roof (c) using a light roof (d) adding steel to concrete
13. 13.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a shake table (d) a fridge
17. 17.🏚️ 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 180 cm tall on a 30 cm base and tower C is 140 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
18. 18.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
19. 19.🏚️ 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 120 cm tall on a 20 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 B (c) tower A
20. 20.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) using a light roof (d) making brittle joints
21. 21.🏚️ 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 100 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
22. 22.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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.🏚️ 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 A (b) tower B (c) tower C
26. 26.🏚️ 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 10 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
27. 27.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.🔍 Which is the odd one out? (a) using flexible joints (b) using a heavy roof (c) building tall and narrow (d) stacking loose bricks
29. 29.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) adding cross bracing (b) leaving out steel bars (c) raising heavy tanks high (d) using a heavy roof
31. 31.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) having a wide base (c) making brittle joints (d) stacking loose bricks
32. 32.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) adding cross bracing (c) fitting rubber base pads (d) making brittle joints
34. 34.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) raising heavy tanks high (d) having a wide base
35. 35.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) leaving out steel bars (c) raising heavy tanks high (d) keeping a simple shape
36. 36.🏚️ 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 10 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 A (b) tower B (c) tower C
37. 37.🏚️ 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 40 cm tall on a 10 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
38. 38.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
39. 39.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False

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