Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 225 · 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) building tall and narrow (b) adding cross bracing (c) fitting rubber base pads (d) keeping a simple shape
2. 2.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
3. 3.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
5. 5.🏚️ 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 120 cm tall on a 30 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
6. 6.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they bend, not break (d) they look nice
7. 7.🔍 Which is the odd one out? (a) making brittle joints (b) leaving out steel bars (c) stacking loose bricks (d) using flexible joints
8. 8.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
9. 9.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.🏚️ 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
11. 11.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
12. 12.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
14. 14.🏚️ 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 90 cm tall on a 30 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
15. 15.🏚️ 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 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
16. 16.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) raising heavy tanks high (d) fitting rubber base pads
17. 17.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
18. 18.🏚️ 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 240 cm tall on a 40 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
19. 19.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🔍 Which is the odd one out? (a) using flexible joints (b) adding cross bracing (c) adding steel to concrete (d) stacking loose bricks
21. 21.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is lighter (d) it is harder to tip over
22. 22.🏚️ 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 60 cm tall on a 20 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
23. 23.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
24. 24.🏚️ 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 60 cm tall on a 30 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 A (c) tower C
25. 25.🏚️ 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 40 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
26. 26.🔍 Which is the odd one out? (a) using a light roof (b) fitting rubber base pads (c) raising heavy tanks high (d) adding steel to concrete
27. 27.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) using a light roof (d) raising heavy tanks high
29. 29.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.🔍 Which is the odd one out? (a) raising heavy tanks high (b) keeping a simple shape (c) stacking loose bricks (d) using a heavy roof
31. 31.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a telescope (c) a fridge (d) a microscope
33. 33.🏚️ 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 120 cm tall on a 40 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
34. 34.🏚️ 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 120 cm tall on a 40 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
35. 35.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) keeping a simple shape (c) having a wide base (d) building tall and narrow
37. 37.🏚️ 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 120 cm tall on a 30 cm base and tower C is 20 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
38. 38.🏚️ 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 160 cm tall on a 40 cm base and tower C is 140 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
39. 39.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 10 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 C (c) tower A

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