Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 483 · 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) leaving out steel bars (b) keeping a simple shape (c) having a wide base (d) adding steel to concrete
2. 2.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) hanging outside (c) on the very top (d) on a thin pole
3. 3.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.🔍 Which is the odd one out? (a) building tall and narrow (b) raising heavy tanks high (c) adding cross bracing (d) making brittle joints
6. 6.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) raising heavy tanks high (c) building tall and narrow (d) leaving out steel bars
7. 7.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they are cheap (c) they stop shaking (d) they look nice
8. 8.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a fridge (d) a shake table
9. 9.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) building tall and narrow (c) leaving out steel bars (d) having a wide base
10. 10.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
11. 11.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) using flexible joints (d) raising heavy tanks high
13. 13.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) raising heavy tanks high (c) using a light roof (d) adding steel to concrete
15. 15.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.🏚️ 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 20 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 A (b) tower B (c) tower C
17. 17.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
18. 18.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 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 easiest to tip over? (a) tower C (b) tower B (c) tower A
21. 21.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is lighter (d) it is taller
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 200 cm tall on a 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
23. 23.🏚️ 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 240 cm tall on a 40 cm base and tower C is 160 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
24. 24.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using flexible joints (c) having a wide base (d) leaving out steel bars
25. 25.🔍 Which is the odd one out? (a) adding steel to concrete (b) using a heavy roof (c) building tall and narrow (d) raising heavy tanks high
26. 26.🔍 Which is the odd one out? (a) fitting rubber base pads (b) stacking loose bricks (c) adding cross bracing (d) keeping a simple shape
27. 27.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
28. 28.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
29. 29.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) using a heavy roof (c) making brittle joints (d) raising heavy tanks high
30. 30.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
32. 32.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
33. 33.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
35. 35.🔍 Which is the odd one out? (a) leaving out steel bars (b) raising heavy tanks high (c) keeping a simple shape (d) making brittle joints
36. 36.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a heavy roof (c) building tall and narrow (d) making brittle joints
37. 37.🔍 Which is the odd one out? (a) adding cross bracing (b) keeping a simple shape (c) making brittle joints (d) having a wide base
38. 38.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
39. 39.🏚️ 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 70 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
40. 40.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding cross bracing (c) fitting rubber base pads (d) having a wide base

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