Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 38 · 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) on the very top (b) on a thin pole (c) hanging outside (d) low down
2. 2.🔍 Which is the odd one out? (a) having a wide base (b) adding cross bracing (c) leaving out steel bars (d) adding steel to concrete
3. 3.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) leaving out steel bars (c) adding steel to concrete (d) fitting rubber base pads
4. 4.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
5. 5.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.🏚️ Why is a wide base safer? (a) it is taller (b) it is lighter (c) it is colourful (d) it is harder to tip over
7. 7.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they are cheap (d) they look nice
8. 8.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
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.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) keeping a simple shape (c) raising heavy tanks high (d) having a wide base
11. 11.🏚️ 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 120 cm tall on a 30 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
12. 12.🏚️ 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 180 cm tall on a 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
13. 13.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
15. 15.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) fitting rubber base pads (c) using a heavy roof (d) using flexible joints
16. 16.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) having a wide base (c) making brittle joints (d) using flexible joints
17. 17.🏚️ 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 80 cm tall on a 20 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 C (c) tower B
18. 18.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) using flexible joints (d) stacking loose bricks
19. 19.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a fridge (d) a telescope
20. 20.🏚️ 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 40 cm tall on a 10 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
21. 21.🏚️ 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 30 cm tall on a 30 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
22. 22.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) making brittle joints (c) leaving out steel bars (d) using a heavy roof
23. 23.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) using flexible joints (d) raising heavy tanks high
24. 24.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
26. 26.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
27. 27.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
28. 28.🏚️ 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 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 A (c) tower B
29. 29.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 40 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
30. 30.🏚️ 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 120 cm tall on a 30 cm base and tower C is 20 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
31. 31.🔍 Which is the odd one out? (a) fitting rubber base pads (b) having a wide base (c) using a heavy roof (d) keeping a simple shape
32. 32.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) building tall and narrow (c) stacking loose bricks (d) adding cross bracing
33. 33.🔍 Which is the odd one out? (a) adding steel to concrete (b) making brittle joints (c) fitting rubber base pads (d) having a wide base
34. 34.🔍 Which is the odd one out? (a) building tall and narrow (b) making brittle joints (c) adding steel to concrete (d) using a heavy roof
35. 35.🏚️ 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 120 cm tall on a 40 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
36. 36.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
38. 38.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
40. 40.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) using flexible joints (d) stacking loose bricks

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