Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 827 · 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) adding cross bracing (b) making brittle joints (c) building tall and narrow (d) raising heavy tanks high
2. 2.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) leaving out steel bars (c) making brittle joints (d) raising heavy tanks high
5. 5.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) having a wide base (c) stacking loose bricks (d) building tall and narrow
7. 7.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) making brittle joints (c) using a light roof (d) keeping a simple shape
8. 8.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they bend, not break (d) they look nice
10. 10.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) stacking loose bricks (c) making brittle joints (d) raising heavy tanks high
11. 11.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) adding steel to concrete (b) using a heavy roof (c) using a light roof (d) adding cross bracing
13. 13.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
14. 14.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on a thin pole (c) hanging outside (d) on the very top
15. 15.🔍 Which is the odd one out? (a) using a heavy roof (b) fitting rubber base pads (c) raising heavy tanks high (d) building tall and narrow
16. 16.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
17. 17.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a microscope (d) a telescope
18. 18.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) using flexible joints (c) making brittle joints (d) raising heavy tanks high
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 60 cm tall on a 20 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
20. 20.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is lighter (c) it is taller (d) it is colourful
21. 21.🔍 Which is the odd one out? (a) using a light roof (b) adding steel to concrete (c) using flexible joints (d) making brittle joints
22. 22.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a light roof (c) stacking loose bricks (d) using flexible joints
23. 23.🔍 Which is the odd one out? (a) leaving out steel bars (b) having a wide base (c) raising heavy tanks high (d) building tall and narrow
24. 24.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) making brittle joints (c) using a heavy roof (d) using a light roof
28. 28.🏚️ 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 60 cm tall on a 30 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
29. 29.🏚️ Does stacking loose bricks 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 120 cm tall on a 30 cm wide base, tower B is 240 cm tall on a 40 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
31. 31.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
32. 32.🏚️ 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 80 cm tall on a 20 cm base and tower C is 280 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
33. 33.🏚️ 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 150 cm tall on a 30 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
34. 34.🏚️ 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 40 cm tall on a 20 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 A (c) tower B
35. 35.🏚️ 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 hardest to tip over? (a) tower C (b) tower B (c) tower A
36. 36.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) keeping a simple shape (d) leaving out steel bars
37. 37.🏚️ 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 70 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
38. 38.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.🔍 Which is the odd one out? (a) building tall and narrow (b) using a light roof (c) using flexible joints (d) keeping a simple shape
40. 40.🏚️ 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 20 cm tall on a 10 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C

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