Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 260 · 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: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) using flexible joints (b) using a heavy roof (c) raising heavy tanks high (d) stacking loose bricks
3. 3.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) fitting rubber base pads (d) leaving out steel bars
4. 4.🔍 Which is the odd one out? (a) using a heavy roof (b) leaving out steel bars (c) raising heavy tanks high (d) using a light roof
5. 5.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
6. 6.🏚️ 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 40 cm tall on a 40 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
7. 7.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
8. 8.🏚️ Why is a wide base safer? (a) it is colourful (b) it is lighter (c) it is harder to tip over (d) it is taller
9. 9.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) low down (c) on the very top (d) on a thin pole
10. 10.🔍 Which is the odd one out? (a) building tall and narrow (b) raising heavy tanks high (c) making brittle joints (d) keeping a simple shape
11. 11.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a telescope (c) a shake table (d) a fridge
12. 12.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they bend, not break (d) they are cheap
13. 13.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) raising heavy tanks high (d) having a wide base
14. 14.🏚️ 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 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
15. 15.🏚️ 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 150 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 B (b) tower A (c) tower C
16. 16.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) adding cross bracing (d) making brittle joints
17. 17.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
18. 18.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
19. 19.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 40 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 easiest to tip over? (a) tower C (b) tower A (c) tower B
22. 22.🏚️ 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 280 cm tall on a 40 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
23. 23.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
24. 24.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
25. 25.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
26. 26.🏚️ Three solid model towers are made of the same material. Tower A is 50 cm tall on a 10 cm wide base, tower B is 30 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 C (c) tower B
27. 27.🏚️ 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 120 cm tall on a 20 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
28. 28.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
30. 30.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
31. 31.🏚️ 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 150 cm tall on a 30 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 C (c) tower A
32. 32.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) stacking loose bricks (c) fitting rubber base pads (d) keeping a simple shape
34. 34.🏚️ 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 30 cm tall on a 10 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
35. 35.🔍 Which is the odd one out? (a) fitting rubber base pads (b) having a wide base (c) adding steel to concrete (d) leaving out steel bars
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 50 cm tall on a 10 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
37. 37.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.🔍 Which is the odd one out? (a) adding cross bracing (b) stacking loose bricks (c) building tall and narrow (d) raising heavy tanks high
39. 39.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) having a wide base (b) using flexible joints (c) stacking loose bricks (d) adding steel to concrete

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