Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 865 · 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.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is harder to tip over (d) it is colourful
2. 2.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using flexible joints (c) raising heavy tanks high (d) building tall and narrow
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.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
5. 5.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) stacking loose bricks (c) using a heavy roof (d) leaving out steel bars
6. 6.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a telescope (d) a microscope
7. 7.🏚️ Does having a wide base 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) adding cross bracing (b) using flexible joints (c) fitting rubber base pads (d) leaving out steel bars
9. 9.🏚️ 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 240 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
10. 10.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) low down (d) on a thin pole
11. 11.🏚️ 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 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
12. 12.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 80 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
13. 13.🔍 Which is the odd one out? (a) leaving out steel bars (b) making brittle joints (c) adding steel to concrete (d) stacking loose bricks
14. 14.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) adding cross bracing (d) building tall and narrow
18. 18.🏚️ 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 80 cm tall on a 20 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
19. 19.🏚️ 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 20 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
20. 20.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 10 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
21. 21.🔍 Which is the odd one out? (a) making brittle joints (b) using a heavy roof (c) stacking loose bricks (d) using a light roof
22. 22.🔍 Which is the odd one out? (a) having a wide base (b) adding steel to concrete (c) keeping a simple shape (d) stacking loose bricks
23. 23.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) adding steel to concrete (c) using flexible joints (d) keeping a simple shape
24. 24.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.🏚️ 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
26. 26.🏚️ 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 120 cm tall on a 40 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
27. 27.🏚️ 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 10 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
28. 28.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) making brittle joints (c) raising heavy tanks high (d) using a heavy roof
29. 29.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
30. 30.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.🏚️ 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 180 cm tall on a 30 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
32. 32.🔍 Which is the odd one out? (a) stacking loose bricks (b) raising heavy tanks high (c) using a heavy roof (d) keeping a simple shape
33. 33.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using flexible joints (c) raising heavy tanks high (d) having a wide base
34. 34.🏚️ 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 20 cm tall on a 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
35. 35.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) adding steel to concrete (d) raising heavy tanks high
36. 36.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a light roof (c) using flexible joints (d) fitting rubber base pads
38. 38.🏚️ 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 20 cm tall on a 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
39. 39.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) fitting rubber base pads (c) using flexible joints (d) using a heavy roof
40. 40.🏚️ 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 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C

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