Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 526 · 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.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is colourful (d) it is taller
5. 5.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they look nice (d) they stop shaking
6. 6.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.🏚️ 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 10 cm tall on a 10 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 A (c) tower C
8. 8.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
9. 9.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) leaving out steel bars (d) adding cross bracing
10. 10.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on the very top (c) on a thin pole (d) hanging outside
11. 11.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 10 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
12. 12.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
13. 13.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) raising heavy tanks high (c) stacking loose bricks (d) making brittle joints
14. 14.🔍 Which is the odd one out? (a) having a wide base (b) stacking loose bricks (c) adding steel to concrete (d) using flexible joints
15. 15.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
16. 16.🏚️ 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 180 cm tall on a 30 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
17. 17.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 40 cm wide base, tower B is 60 cm tall on a 10 cm base and tower C is 280 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 40 cm wide base, tower B is 30 cm tall on a 30 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
20. 20.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
21. 21.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a light roof (c) using flexible joints (d) using a heavy roof
22. 22.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
23. 23.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a shake table (d) a telescope
24. 24.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
26. 26.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
28. 28.🏚️ 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 90 cm tall on a 30 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
29. 29.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) having a wide base (c) using a light roof (d) using flexible joints
30. 30.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) making brittle joints (c) building tall and narrow (d) stacking loose bricks
31. 31.🏚️ 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 160 cm tall on a 20 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
32. 32.🏚️ 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 10 cm base and tower C is 140 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
33. 33.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding steel to concrete (c) using flexible joints (d) raising heavy tanks high
34. 34.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a light roof (c) leaving out steel bars (d) keeping a simple shape
35. 35.🔍 Which is the odd one out? (a) using a light roof (b) adding steel to concrete (c) building tall and narrow (d) having a wide base
36. 36.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a heavy roof (c) having a wide base (d) stacking loose bricks
38. 38.🏚️ 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 60 cm tall on a 30 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
39. 39.🏚️ 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 60 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
40. 40.🏚️ 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 40 cm tall on a 40 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C

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