Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 223 · 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.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) hanging outside (c) on the very top (d) on a thin pole
2. 2.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.🔍 Which is the odd one out? (a) using a light roof (b) leaving out steel bars (c) fitting rubber base pads (d) having a wide base
4. 4.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they are cheap (c) they look nice (d) they stop shaking
5. 5.🏚️ 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 240 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.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.🏚️ 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
8. 8.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) using a light roof (c) keeping a simple shape (d) having a wide base
9. 9.🏚️ 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 60 cm tall on a 20 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
10. 10.🏚️ 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 80 cm tall on a 20 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
11. 11.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🔍 Which is the odd one out? (a) using a heavy roof (b) stacking loose bricks (c) raising heavy tanks high (d) using a light roof
14. 14.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
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 C (c) tower A
16. 16.🏚️ 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 160 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
17. 17.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) using a light roof (c) raising heavy tanks high (d) building tall and narrow
18. 18.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) adding cross bracing (c) using a light roof (d) fitting rubber base pads
19. 19.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
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 100 cm tall on a 20 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
21. 21.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using flexible joints (c) adding cross bracing (d) using a heavy roof
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 60 cm tall on a 20 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
23. 23.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
24. 24.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
26. 26.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) stacking loose bricks (c) using flexible joints (d) using a light roof
27. 27.🔍 Which is the odd one out? (a) making brittle joints (b) using a heavy roof (c) building tall and narrow (d) keeping a simple shape
28. 28.🏚️ 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 320 cm tall on a 40 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
29. 29.🏚️ Does using flexible joints 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 40 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 C (c) tower B
31. 31.🔍 Which is the odd one out? (a) using a light roof (b) making brittle joints (c) using flexible joints (d) adding steel to concrete
32. 32.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a heavy roof (c) using flexible joints (d) making brittle joints
33. 33.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
34. 34.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
36. 36.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
37. 37.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) building tall and narrow (c) fitting rubber base pads (d) stacking loose bricks
38. 38.🔍 Which is the odd one out? (a) stacking loose bricks (b) keeping a simple shape (c) using a light roof (d) using flexible joints
39. 39.🏚️ 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 40 cm tall on a 20 cm base and tower C is 20 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 60 cm tall on a 10 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B

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