Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 624 · 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 steel to concrete makes a building safer in earthquakes. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) fitting rubber base pads (b) making brittle joints (c) raising heavy tanks high (d) using a heavy roof
3. 3.🏚️ Does raising heavy tanks high 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 less safe in earthquakes? (a) using a light roof (b) using flexible joints (c) using a heavy roof (d) having a wide base
5. 5.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
6. 6.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) keeping a simple shape (c) leaving out steel bars (d) adding cross bracing
7. 7.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) stacking loose bricks (d) having a wide base
8. 8.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
9. 9.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding steel to concrete (c) adding cross bracing (d) leaving out steel bars
11. 11.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 60 cm tall on a 20 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
12. 12.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on a thin pole (c) low down (d) on the very top
13. 13.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they are cheap (c) they look nice (d) they stop shaking
14. 14.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) stacking loose bricks (c) making brittle joints (d) building tall and narrow
15. 15.🏚️ 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 140 cm tall on a 20 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
16. 16.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
17. 17.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) raising heavy tanks high (c) using flexible joints (d) having a wide base
18. 18.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
19. 19.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) adding cross bracing (c) having a wide base (d) adding steel to concrete
21. 21.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
22. 22.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
24. 24.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using flexible joints (c) building tall and narrow (d) keeping a simple shape
27. 27.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.🔍 Which is the odd one out? (a) using a heavy roof (b) adding steel to concrete (c) making brittle joints (d) stacking loose bricks
29. 29.🏚️ Does adding steel to concrete 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) keeping a simple shape (b) stacking loose bricks (c) leaving out steel bars (d) making brittle joints
31. 31.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) leaving out steel bars (c) using a heavy roof (d) stacking loose bricks
32. 32.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a telescope (c) a microscope (d) a fridge
33. 33.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🏚️ Why is a wide base safer? (a) it is taller (b) it is harder to tip over (c) it is colourful (d) it is lighter
35. 35.🔍 Which is the odd one out? (a) keeping a simple shape (b) adding steel to concrete (c) raising heavy tanks high (d) fitting rubber base pads
36. 36.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
37. 37.🏚️ 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 40 cm tall on a 10 cm base and tower C is 40 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
38. 38.🔍 Which is the odd one out? (a) adding cross bracing (b) stacking loose bricks (c) using flexible joints (d) having a wide base
39. 39.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.🏚️ 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 180 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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