Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 422 · 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.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they stop shaking (c) they are cheap (d) they look nice
2. 2.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) having a wide base (c) using a heavy roof (d) stacking loose bricks
3. 3.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a fridge (c) a microscope (d) a shake table
4. 4.🏚️ 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 60 cm tall on a 10 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
5. 5.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a heavy roof (c) using a light roof (d) keeping a simple shape
6. 6.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
8. 8.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
9. 9.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
11. 11.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on the very top (c) low down (d) on a thin pole
12. 12.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🏚️ Why is a wide base safer? (a) it is taller (b) it is harder to tip over (c) it is lighter (d) it is colourful
14. 14.🏚️ 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 120 cm tall on a 20 cm base and tower C is 210 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.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) using flexible joints (d) raising heavy tanks high
17. 17.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) using flexible joints (d) stacking loose bricks
18. 18.🏚️ 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 120 cm tall on a 30 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
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.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a light roof (c) making brittle joints (d) raising heavy tanks high
21. 21.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) making brittle joints (b) leaving out steel bars (c) using a heavy roof (d) fitting rubber base pads
23. 23.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 40 cm wide base, tower B is 30 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
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 30 cm tall on a 30 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 B (c) tower C
25. 25.🔍 Which is the odd one out? (a) making brittle joints (b) using a light roof (c) raising heavy tanks high (d) stacking loose bricks
26. 26.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.🏚️ 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 40 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
28. 28.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.🏚️ 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 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
30. 30.🔍 Which is the odd one out? (a) leaving out steel bars (b) adding steel to concrete (c) using a light roof (d) keeping a simple shape
31. 31.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) stacking loose bricks (c) fitting rubber base pads (d) adding cross bracing
32. 32.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.🏚️ 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 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
34. 34.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
35. 35.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
36. 36.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) making brittle joints (c) using a heavy roof (d) building tall and narrow
37. 37.🏚️ Three solid model towers are made of the same material. Tower A is 70 cm tall on a 10 cm wide base, tower B is 90 cm tall on a 30 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 C (c) tower A
38. 38.🏚️ Does stacking loose bricks 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) adding steel to concrete (b) making brittle joints (c) stacking loose bricks (d) using a heavy roof
40. 40.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) using a heavy roof (d) keeping a simple shape

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