Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 617 · 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: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
2. 2.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) raising heavy tanks high (c) using flexible joints (d) leaving out steel bars
3. 3.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) adding steel to concrete (c) fitting rubber base pads (d) having a wide base
5. 5.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a shake table (c) a fridge (d) a microscope
6. 6.🏚️ 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 50 cm tall on a 10 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
7. 7.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) adding cross bracing (c) fitting rubber base pads (d) leaving out steel bars
9. 9.🔍 Which is the odd one out? (a) using a heavy roof (b) stacking loose bricks (c) fitting rubber base pads (d) leaving out steel bars
10. 10.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) making brittle joints (c) adding cross bracing (d) raising heavy tanks high
13. 13.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.🔍 Which is the odd one out? (a) leaving out steel bars (b) raising heavy tanks high (c) using a heavy roof (d) keeping a simple shape
15. 15.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
16. 16.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.🏚️ 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 120 cm tall on a 40 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 B (c) tower C
18. 18.🏚️ Why is a wide base safer? (a) it is taller (b) it is lighter (c) it is harder to tip over (d) it is colourful
19. 19.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) adding cross bracing (c) using flexible joints (d) adding steel to concrete
20. 20.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) using a light roof (c) using flexible joints (d) adding steel to concrete
21. 21.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) low down (c) hanging outside (d) on a thin pole
22. 22.🏚️ 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 160 cm tall on a 40 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
23. 23.🔍 Which is the odd one out? (a) adding cross bracing (b) keeping a simple shape (c) using a light roof (d) using a heavy roof
24. 24.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) leaving out steel bars (c) raising heavy tanks high (d) adding steel to concrete
25. 25.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.🏚️ 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 10 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
27. 27.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) using a light roof (d) keeping a simple shape
28. 28.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) keeping a simple shape (c) building tall and narrow (d) stacking loose bricks
29. 29.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
30. 30.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
31. 31.🏚️ 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 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 B (b) tower C (c) tower A
32. 32.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
35. 35.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
36. 36.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they bend, not break (c) they are cheap (d) they stop shaking
37. 37.🏚️ 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 60 cm tall on a 20 cm base and tower C is 10 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 20 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
39. 39.🔍 Which is the odd one out? (a) using flexible joints (b) using a heavy roof (c) building tall and narrow (d) stacking loose bricks
40. 40.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) raising heavy tanks high (d) using a light roof

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