Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 583 · 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.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) adding cross bracing (d) leaving out steel bars
3. 3.🔍 Which is the odd one out? (a) having a wide base (b) fitting rubber base pads (c) raising heavy tanks high (d) keeping a simple shape
4. 4.🔍 Which is the odd one out? (a) having a wide base (b) making brittle joints (c) using flexible joints (d) fitting rubber base pads
5. 5.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
6. 6.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) low down (d) hanging outside
7. 7.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
8. 8.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 240 cm tall on a 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
9. 9.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.🔍 Which is the odd one out? (a) stacking loose bricks (b) having a wide base (c) leaving out steel bars (d) using a heavy roof
11. 11.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
12. 12.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
13. 13.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a shake table (c) a fridge (d) a microscope
14. 14.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) using flexible joints (d) making brittle joints
16. 16.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a heavy roof (c) adding cross bracing (d) adding steel to concrete
18. 18.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) keeping a simple shape (c) stacking loose bricks (d) raising heavy tanks high
19. 19.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) having a wide base (c) making brittle joints (d) raising heavy tanks high
23. 23.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is harder to tip over (d) it is lighter
24. 24.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
25. 25.🔍 Which is the odd one out? (a) leaving out steel bars (b) keeping a simple shape (c) stacking loose bricks (d) using a heavy roof
26. 26.🏚️ 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 120 cm tall on a 40 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
27. 27.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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 60 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
29. 29.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) using a light roof (d) raising heavy tanks high
31. 31.🔍 Which is the odd one out? (a) using a light roof (b) stacking loose bricks (c) leaving out steel bars (d) using a heavy roof
32. 32.🔍 Which is the odd one out? (a) adding cross bracing (b) leaving out steel bars (c) adding steel to concrete (d) keeping a simple shape
33. 33.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they bend, not break (d) they are cheap
34. 34.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) using flexible joints (d) using a heavy roof
35. 35.🏚️ 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 50 cm tall on a 10 cm base and tower C is 280 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
36. 36.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) fitting rubber base pads (c) stacking loose bricks (d) using flexible joints
38. 38.🏚️ 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 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 B (b) tower A (c) tower C
39. 39.🏚️ 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 120 cm tall on a 30 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
40. 40.🔍 Which is the odd one out? (a) having a wide base (b) adding steel to concrete (c) building tall and narrow (d) using flexible joints

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