Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 812 · 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: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
2. 2.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.🏚️ 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
4. 4.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) raising heavy tanks high (d) keeping a simple shape
5. 5.🏚️ Does using a heavy roof 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) using a heavy roof (c) having a wide base (d) raising heavy tanks high
7. 7.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using flexible joints (c) leaving out steel bars (d) adding cross bracing
8. 8.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
9. 9.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 150 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 A (b) tower C (c) tower B
11. 11.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) making brittle joints (c) keeping a simple shape (d) adding cross bracing
12. 12.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
13. 13.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) using a heavy roof (d) fitting rubber base pads
15. 15.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
16. 16.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they bend, not break (d) they stop shaking
17. 17.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using a heavy roof (c) using flexible joints (d) using a light roof
19. 19.🏚️ 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 180 cm tall on a 30 cm base and tower C is 160 cm tall on a 40 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 40 cm tall on a 10 cm wide base, tower B is 20 cm tall on a 20 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
21. 21.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) hanging outside (c) on the very top (d) low down
22. 22.🔍 Which is the odd one out? (a) using flexible joints (b) leaving out steel bars (c) building tall and narrow (d) using a heavy roof
23. 23.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) raising heavy tanks high (c) adding cross bracing (d) leaving out steel bars
24. 24.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a telescope (c) a shake table (d) a fridge
26. 26.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 10 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
28. 28.🏚️ 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 150 cm tall on a 30 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 A (c) tower C
29. 29.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
30. 30.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
31. 31.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.🔍 Which is the odd one out? (a) having a wide base (b) raising heavy tanks high (c) using a heavy roof (d) stacking loose bricks
33. 33.🏚️ 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 140 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
34. 34.🔍 Which is the odd one out? (a) adding steel to concrete (b) leaving out steel bars (c) making brittle joints (d) using a heavy roof
35. 35.🔍 Which is the odd one out? (a) adding cross bracing (b) keeping a simple shape (c) having a wide base (d) using a heavy roof
36. 36.🔍 Which is the odd one out? (a) adding steel to concrete (b) stacking loose bricks (c) adding cross bracing (d) having a wide base
37. 37.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) keeping a simple shape (c) using flexible joints (d) raising heavy tanks high
38. 38.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
40. 40.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using flexible joints (c) using a heavy roof (d) stacking loose bricks

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