Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 357 · 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.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on a thin pole (c) on the very top (d) hanging outside
2. 2.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) having a wide base (d) making brittle joints
3. 3.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.🔍 Which is the odd one out? (a) adding cross bracing (b) adding steel to concrete (c) fitting rubber base pads (d) building tall and narrow
5. 5.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) keeping a simple shape (c) using flexible joints (d) stacking loose bricks
7. 7.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is colourful (d) it is taller
9. 9.🔍 Which is the odd one out? (a) having a wide base (b) using a light roof (c) adding steel to concrete (d) leaving out steel bars
10. 10.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) fitting rubber base pads (d) using a heavy roof
11. 11.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.🏚️ 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 120 cm tall on a 40 cm base and tower C is 20 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 120 cm tall on a 40 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 B (c) tower A
15. 15.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
16. 16.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) using a light roof (b) having a wide base (c) using a heavy roof (d) using flexible joints
18. 18.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
19. 19.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using flexible joints (c) using a heavy roof (d) making brittle joints
20. 20.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
22. 22.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) using a light roof (c) making brittle joints (d) raising heavy tanks high
23. 23.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 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 easiest to tip over? (a) tower A (b) tower C (c) tower B
24. 24.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
25. 25.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a shake table (d) a fridge
26. 26.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
27. 27.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) using flexible joints (b) adding steel to concrete (c) making brittle joints (d) having a wide base
29. 29.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) using a heavy roof (c) building tall and narrow (d) leaving out steel bars
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 40 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
31. 31.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
32. 32.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) using a light roof (c) adding steel to concrete (d) keeping a simple shape
33. 33.🏚️ 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 50 cm tall on a 10 cm base and tower C is 280 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
34. 34.🏚️ 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 150 cm tall on a 30 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
35. 35.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
36. 36.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
37. 37.🏚️ 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 80 cm tall on a 40 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest 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) adding cross bracing (b) adding steel to concrete (c) leaving out steel bars (d) using flexible joints
39. 39.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
40. 40.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False

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