Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 212 · 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 safer in earthquakes? (a) having a wide base (b) leaving out steel bars (c) making brittle joints (d) stacking loose bricks
2. 2.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using flexible joints (c) keeping a simple shape (d) raising heavy tanks high
3. 3.🔍 Which is the odd one out? (a) adding cross bracing (b) using flexible joints (c) adding steel to concrete (d) building tall and narrow
4. 4.🔍 Which is the odd one out? (a) using flexible joints (b) building tall and narrow (c) leaving out steel bars (d) making brittle joints
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) fitting rubber base pads (b) making brittle joints (c) leaving out steel bars (d) using a heavy roof
7. 7.🔍 Which is the odd one out? (a) keeping a simple shape (b) having a wide base (c) using a heavy roof (d) using a light roof
8. 8.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
9. 9.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) keeping a simple shape (c) leaving out steel bars (d) adding steel to concrete
10. 10.🔍 Which is the odd one out? (a) making brittle joints (b) having a wide base (c) stacking loose bricks (d) leaving out steel bars
11. 11.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they look nice (d) they are cheap
13. 13.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a shake table (d) a telescope
14. 14.🏚️ 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 160 cm tall on a 40 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
15. 15.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) adding cross bracing (c) fitting rubber base pads (d) having a wide base
16. 16.🔍 Which is the odd one out? (a) making brittle joints (b) keeping a simple shape (c) leaving out steel bars (d) raising heavy tanks high
17. 17.🏚️ Does making brittle joints 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) having a wide base (b) stacking loose bricks (c) adding cross bracing (d) using a light roof
19. 19.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) leaving out steel bars (d) adding steel to concrete
20. 20.🔍 Which is the odd one out? (a) adding steel to concrete (b) fitting rubber base pads (c) leaving out steel bars (d) having a wide base
21. 21.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
22. 22.🏚️ 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 140 cm tall on a 20 cm base. Which is the hardest 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) using a heavy roof (b) keeping a simple shape (c) adding cross bracing (d) having a wide base
24. 24.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
25. 25.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
26. 26.🏚️ Why is a wide base safer? (a) it is lighter (b) it is colourful (c) it is taller (d) it is harder to tip over
27. 27.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.🏚️ 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 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
29. 29.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) leaving out steel bars (c) making brittle joints (d) adding cross bracing
30. 30.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) fitting rubber base pads (d) building tall and narrow
31. 31.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) building tall and narrow (c) using a heavy roof (d) making brittle joints
32. 32.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) on a thin pole (c) low down (d) hanging outside
33. 33.🏚️ 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 40 cm tall on a 20 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 A (c) tower C
34. 34.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.🔍 Which is the odd one out? (a) fitting rubber base pads (b) keeping a simple shape (c) using a light roof (d) making brittle joints
36. 36.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
37. 37.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
38. 38.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.🔍 Which is the odd one out? (a) stacking loose bricks (b) having a wide base (c) keeping a simple shape (d) adding steel to concrete

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