Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 41 · 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.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a shake table (d) a fridge
2. 2.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is lighter (d) it is taller
4. 4.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) adding cross bracing (d) stacking loose bricks
5. 5.🏚️ 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 20 cm base and tower C is 40 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
6. 6.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) building tall and narrow (c) leaving out steel bars (d) using flexible joints
7. 7.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) using flexible joints (d) using a heavy roof
8. 8.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.🏚️ 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
10. 10.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) stacking loose bricks (c) fitting rubber base pads (d) making brittle joints
11. 11.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) building tall and narrow (c) using flexible joints (d) using a light roof
12. 12.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) fitting rubber base pads (c) keeping a simple shape (d) raising heavy tanks high
13. 13.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
15. 15.🏚️ Three solid model towers are made of the same material. Tower A is 140 cm tall on a 20 cm wide base, tower B is 240 cm tall on a 40 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
16. 16.🔍 Which is the odd one out? (a) having a wide base (b) stacking loose bricks (c) adding steel to concrete (d) keeping a simple shape
17. 17.🏚️ 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 B (c) tower A
18. 18.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) having a wide base (c) stacking loose bricks (d) adding steel to concrete
20. 20.🔍 Which is the odd one out? (a) building tall and narrow (b) stacking loose bricks (c) raising heavy tanks high (d) keeping a simple shape
21. 21.🏚️ 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
22. 22.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
24. 24.🏚️ 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 120 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 B (b) tower A (c) tower C
25. 25.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) making brittle joints (d) adding steel to concrete
26. 26.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) using a light roof (d) making brittle joints
28. 28.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) having a wide base (d) raising heavy tanks high
30. 30.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a light roof (c) adding steel to concrete (d) using a heavy roof
31. 31.🏚️ 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 C (b) tower A (c) tower B
32. 32.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
33. 33.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
35. 35.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a light roof (c) making brittle joints (d) building tall and narrow
37. 37.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 20 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
38. 38.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) leaving out steel bars (c) having a wide base (d) adding cross bracing
39. 39.🔍 Which is the odd one out? (a) leaving out steel bars (b) having a wide base (c) using a heavy roof (d) making brittle joints
40. 40.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False

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