Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 599 · 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.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) adding cross bracing (b) using flexible joints (c) using a light roof (d) stacking loose bricks
3. 3.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) making brittle joints (c) keeping a simple shape (d) adding steel to concrete
4. 4.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding steel to concrete (c) fitting rubber base pads (d) raising heavy tanks high
5. 5.🏚️ 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
6. 6.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is harder to tip over (d) it is lighter
7. 7.🔍 Which is the odd one out? (a) using a heavy roof (b) using flexible joints (c) stacking loose bricks (d) raising heavy tanks high
8. 8.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a light roof (c) fitting rubber base pads (d) stacking loose bricks
9. 9.🏚️ 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
10. 10.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) using a light roof (d) using a heavy roof
11. 11.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
12. 12.🏚️ 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 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
13. 13.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) making brittle joints (c) building tall and narrow (d) using flexible joints
14. 14.🔍 Which is the odd one out? (a) having a wide base (b) using a light roof (c) adding cross bracing (d) raising heavy tanks high
15. 15.🏚️ 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 60 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
16. 16.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a microscope (c) a telescope (d) a shake table
17. 17.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) using flexible joints (b) adding cross bracing (c) having a wide base (d) leaving out steel bars
19. 19.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
20. 20.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 280 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
21. 21.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
22. 22.🏚️ 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 40 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
23. 23.🏚️ Three solid model towers are made of the same material. Tower A is 210 cm tall on a 30 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 B (b) tower A (c) tower C
24. 24.🏚️ 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 40 cm tall on a 10 cm base and tower C is 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
25. 25.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) fitting rubber base pads (c) using a heavy roof (d) making brittle joints
26. 26.🏚️ 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 140 cm tall on a 20 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
27. 27.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a light roof (c) building tall and narrow (d) leaving out steel bars
28. 28.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
30. 30.🏚️ 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 20 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 A (b) tower B (c) tower C
31. 31.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a heavy roof (c) building tall and narrow (d) using a light roof
35. 35.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
36. 36.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 70 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 A (b) tower C (c) tower B
37. 37.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.🏚️ 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 160 cm tall on a 40 cm base and tower C is 40 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 20 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
40. 40.🏚️ 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 180 cm tall on a 30 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C

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