Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 402 · 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 safer in earthquakes? (a) stacking loose bricks (b) using flexible joints (c) leaving out steel bars (d) using a heavy roof
2. 2.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.🔍 Which is the odd one out? (a) using flexible joints (b) making brittle joints (c) leaving out steel bars (d) building tall and narrow
4. 4.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) fitting rubber base pads (c) raising heavy tanks high (d) using a heavy roof
6. 6.🔍 Which is the odd one out? (a) making brittle joints (b) building tall and narrow (c) fitting rubber base pads (d) stacking loose bricks
7. 7.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) making brittle joints (c) using a light roof (d) fitting rubber base pads
8. 8.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
9. 9.🏚️ 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 50 cm tall on a 10 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 B (c) tower C
10. 10.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they bend, not break (d) they stop shaking
12. 12.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a telescope (c) a microscope (d) a shake table
13. 13.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
14. 14.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is colourful (c) it is taller (d) it is lighter
15. 15.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
16. 16.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) low down (c) on a thin pole (d) hanging outside
17. 17.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.🔍 Which is the odd one out? (a) using a heavy roof (b) using flexible joints (c) keeping a simple shape (d) having a wide base
20. 20.🔍 Which is the odd one out? (a) using flexible joints (b) adding cross bracing (c) using a light roof (d) stacking loose bricks
21. 21.🏚️ 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 90 cm tall on a 30 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
22. 22.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) making brittle joints (c) building tall and narrow (d) adding steel to concrete
24. 24.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) keeping a simple shape (d) raising heavy tanks high
25. 25.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 90 cm tall on a 30 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
26. 26.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) having a wide base (d) raising heavy tanks high
27. 27.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) adding cross bracing (c) using a heavy roof (d) making brittle joints
28. 28.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) adding steel to concrete (c) using flexible joints (d) keeping a simple shape
29. 29.🔍 Which is the odd one out? (a) keeping a simple shape (b) leaving out steel bars (c) raising heavy tanks high (d) building tall and narrow
30. 30.🔍 Which is the odd one out? (a) keeping a simple shape (b) fitting rubber base pads (c) adding cross bracing (d) building tall and narrow
31. 31.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a light roof (c) keeping a simple shape (d) raising heavy tanks high
32. 32.🏚️ 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 40 cm tall on a 10 cm base and tower C is 210 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
33. 33.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 60 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
35. 35.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 100 cm tall on a 20 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
37. 37.🏚️ 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 150 cm tall on a 30 cm base and tower C is 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
38. 38.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
39. 39.🏚️ 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 90 cm tall on a 30 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
40. 40.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True

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