Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 299 · 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: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) adding cross bracing (b) leaving out steel bars (c) having a wide base (d) keeping a simple shape
3. 3.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 140 cm tall on a 20 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
4. 4.🏚️ Why is a wide base safer? (a) it is lighter (b) it is colourful (c) it is taller (d) it is harder to tip over
5. 5.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) building tall and narrow (b) using flexible joints (c) making brittle joints (d) using a heavy roof
8. 8.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they stop shaking (c) they are cheap (d) they look nice
9. 9.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
10. 10.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
11. 11.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a telescope (c) a shake table (d) a microscope
12. 12.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) building tall and narrow (d) adding cross bracing
13. 13.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) low down (c) hanging outside (d) on the very top
15. 15.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) keeping a simple shape (c) using a light roof (d) raising heavy tanks high
16. 16.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) using flexible joints (d) making brittle joints
18. 18.🔍 Which is the odd one out? (a) using a light roof (b) having a wide base (c) fitting rubber base pads (d) using a heavy roof
19. 19.🔍 Which is the odd one out? (a) using a heavy roof (b) making brittle joints (c) raising heavy tanks high (d) fitting rubber base pads
20. 20.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
21. 21.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.🔍 Which is the odd one out? (a) using a heavy roof (b) using a light roof (c) raising heavy tanks high (d) building tall and narrow
24. 24.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) leaving out steel bars (c) using a light roof (d) stacking loose bricks
25. 25.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) leaving out steel bars (c) adding steel to concrete (d) building tall and narrow
26. 26.🏚️ 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 160 cm tall on a 40 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
27. 27.🔍 Which is the odd one out? (a) building tall and narrow (b) having a wide base (c) using a light roof (d) using flexible joints
28. 28.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) using a light roof (d) adding cross bracing
30. 30.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using flexible joints (c) fitting rubber base pads (d) building tall and narrow
31. 31.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) adding cross bracing (d) building tall and narrow
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
34. 34.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using flexible joints (c) adding steel to concrete (d) using a heavy roof
35. 35.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
36. 36.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
37. 37.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) keeping a simple shape (c) building tall and narrow (d) leaving out steel bars
38. 38.🏚️ 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 150 cm tall on a 30 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
39. 39.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
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 100 cm tall on a 20 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B

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