Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 308 · 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) using flexible joints (b) raising heavy tanks high (c) using a heavy roof (d) stacking loose bricks
2. 2.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) using a heavy roof (d) adding cross bracing
3. 3.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
4. 4.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🔍 Which is the odd one out? (a) using a heavy roof (b) adding steel to concrete (c) having a wide base (d) fitting rubber base pads
6. 6.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 100 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
7. 7.🔍 Which is the odd one out? (a) adding steel to concrete (b) stacking loose bricks (c) keeping a simple shape (d) having a wide base
8. 8.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they bend, not break (d) they stop shaking
9. 9.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) having a wide base (c) raising heavy tanks high (d) building tall and narrow
10. 10.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a shake table (d) a fridge
11. 11.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) leaving out steel bars (c) using a heavy roof (d) raising heavy tanks high
12. 12.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a heavy roof (c) keeping a simple shape (d) fitting rubber base pads
13. 13.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
14. 14.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.🔍 Which is the odd one out? (a) having a wide base (b) leaving out steel bars (c) using flexible joints (d) adding cross bracing
17. 17.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) stacking loose bricks (c) having a wide base (d) adding steel to concrete
19. 19.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) adding cross bracing (c) building tall and narrow (d) using a heavy roof
20. 20.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
21. 21.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) on a thin pole (d) low down
22. 22.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) building tall and narrow (d) adding cross bracing
23. 23.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) making brittle joints (c) stacking loose bricks (d) leaving out steel bars
24. 24.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a heavy roof (c) fitting rubber base pads (d) making brittle joints
27. 27.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) having a wide base (d) leaving out steel bars
28. 28.🔍 Which is the odd one out? (a) keeping a simple shape (b) using flexible joints (c) making brittle joints (d) having a wide base
29. 29.🔍 Which is the odd one out? (a) building tall and narrow (b) having a wide base (c) using a heavy roof (d) leaving out steel bars
30. 30.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
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 20 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
32. 32.🏚️ 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 120 cm tall on a 20 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
33. 33.🏚️ 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 40 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 B (b) tower A (c) tower C
34. 34.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
35. 35.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
36. 36.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
37. 37.🏚️ 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 20 cm tall on a 10 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
38. 38.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
39. 39.Which of these makes a building safer in earthquakes? (a) using a light roof (b) stacking loose bricks (c) using a heavy roof (d) building tall and narrow
40. 40.🔍 Which is the odd one out? (a) having a wide base (b) fitting rubber base pads (c) adding steel to concrete (d) raising heavy tanks high

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