Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 254 · 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) having a wide base (b) using a light roof (c) adding steel to concrete (d) using a heavy roof
2. 2.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on a thin pole (c) hanging outside (d) on the very top
3. 3.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) fitting rubber base pads (c) leaving out steel bars (d) raising heavy tanks high
4. 4.🔍 Which is the odd one out? (a) using a heavy roof (b) using a light roof (c) leaving out steel bars (d) stacking loose bricks
5. 5.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.🏚️ 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 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
7. 7.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) fitting rubber base pads (c) using a light roof (d) adding cross bracing
8. 8.🔍 Which is the odd one out? (a) adding steel to concrete (b) making brittle joints (c) keeping a simple shape (d) using flexible joints
9. 9.🏚️ 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 120 cm tall on a 30 cm base and tower C is 320 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
10. 10.🏚️ 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
11. 11.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) making brittle joints (c) stacking loose bricks (d) using a heavy roof
12. 12.🏚️ 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 80 cm tall on a 40 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
13. 13.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) raising heavy tanks high (c) adding cross bracing (d) adding steel to concrete
14. 14.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
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.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a fridge (d) a shake table
17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 320 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 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
18. 18.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is lighter (c) it is colourful (d) it is taller
19. 19.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) leaving out steel bars (c) stacking loose bricks (d) using flexible joints
20. 20.🏚️ 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 60 cm tall on a 10 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
21. 21.🔍 Which is the odd one out? (a) adding steel to concrete (b) using a heavy roof (c) adding cross bracing (d) keeping a simple shape
22. 22.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding steel to concrete (c) using a light roof (d) leaving out steel bars
23. 23.🔍 Which is the odd one out? (a) keeping a simple shape (b) using flexible joints (c) fitting rubber base pads (d) raising heavy tanks high
24. 24.🏚️ 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 200 cm tall on a 40 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
25. 25.🔍 Which is the odd one out? (a) stacking loose bricks (b) using flexible joints (c) fitting rubber base pads (d) adding cross bracing
26. 26.🔍 Which is the odd one out? (a) using a heavy roof (b) keeping a simple shape (c) making brittle joints (d) stacking loose bricks
27. 27.🏚️ 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 30 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 C (b) tower B (c) tower A
28. 28.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
29. 29.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
30. 30.🏚️ 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 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
31. 31.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
32. 32.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding steel to concrete (c) building tall and narrow (d) using flexible joints
36. 36.🏚️ 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 40 cm tall on a 20 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
37. 37.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
39. 39.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a light roof (c) raising heavy tanks high (d) leaving out steel bars

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