Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 348 · 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 of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) keeping a simple shape (c) using a heavy roof (d) using flexible joints
2. 2.🏚️ 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 160 cm tall on a 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
3. 3.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) having a wide base (c) building tall and narrow (d) using a heavy roof
6. 6.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) adding steel to concrete (c) building tall and narrow (d) stacking loose bricks
7. 7.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) on a thin pole (c) hanging outside (d) low down
8. 8.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) fitting rubber base pads (c) stacking loose bricks (d) having a wide base
9. 9.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
10. 10.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
11. 11.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they bend, not break (c) they stop shaking (d) they are cheap
12. 12.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) using a light roof (b) having a wide base (c) making brittle joints (d) using flexible joints
14. 14.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) stacking loose bricks (c) raising heavy tanks high (d) making brittle joints
15. 15.🏚️ 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 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
16. 16.🏚️ 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 280 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
17. 17.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a telescope (d) a fridge
18. 18.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) making brittle joints (c) using flexible joints (d) using a light roof
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
20. 20.🏚️ 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 150 cm tall on a 30 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
21. 21.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
22. 22.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.🔍 Which is the odd one out? (a) using a light roof (b) making brittle joints (c) using a heavy roof (d) raising heavy tanks high
24. 24.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
25. 25.🏚️ 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 40 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
26. 26.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) leaving out steel bars (d) keeping a simple shape
28. 28.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is taller (d) it is lighter
29. 29.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) using a heavy roof (d) keeping a simple shape
31. 31.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
33. 33.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
35. 35.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
36. 36.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) keeping a simple shape (c) adding cross bracing (d) fitting rubber base pads
37. 37.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
38. 38.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a light roof (c) keeping a simple shape (d) using a heavy roof
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 120 cm tall on a 30 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
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 200 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 C (b) tower B (c) tower A

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