Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 61 · 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.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) using flexible joints (c) leaving out steel bars (d) making brittle joints
2. 2.🔍 Which is the odd one out? (a) having a wide base (b) using a light roof (c) leaving out steel bars (d) fitting rubber base pads
3. 3.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
4. 4.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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.🔍 Which is the odd one out? (a) using flexible joints (b) using a heavy roof (c) using a light roof (d) keeping a simple shape
7. 7.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) raising heavy tanks high (c) stacking loose bricks (d) fitting rubber base pads
8. 8.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using a heavy roof (c) keeping a simple shape (d) using flexible joints
10. 10.🔍 Which is the odd one out? (a) adding steel to concrete (b) using flexible joints (c) having a wide base (d) making brittle joints
11. 11.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
12. 12.🏚️ 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 70 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
13. 13.🏚️ 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
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 cm wide base, tower B is 100 cm tall on a 20 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
15. 15.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they look nice (d) they bend, not break
16. 16.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is harder to tip over (d) it is lighter
17. 17.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
18. 18.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
19. 19.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
22. 22.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) stacking loose bricks (c) leaving out steel bars (d) keeping a simple shape
23. 23.🔍 Which is the odd one out? (a) having a wide base (b) using a light roof (c) raising heavy tanks high (d) adding steel to concrete
24. 24.🏚️ 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 40 cm base and tower C is 10 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
25. 25.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
26. 26.🔍 Which is the odd one out? (a) leaving out steel bars (b) adding cross bracing (c) using a heavy roof (d) building tall and narrow
27. 27.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
28. 28.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) adding steel to concrete (c) having a wide base (d) building tall and narrow
29. 29.🏚️ 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 160 cm tall on a 40 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
30. 30.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using a light roof (c) using flexible joints (d) making brittle joints
31. 31.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 40 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 C (b) tower B (c) tower A
33. 33.🏚️ 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 200 cm tall on a 40 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
34. 34.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
35. 35.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) adding cross bracing (d) using a heavy roof
36. 36.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a light roof (c) building tall and narrow (d) raising heavy tanks high
37. 37.🔍 Which is the odd one out? (a) using a light roof (b) fitting rubber base pads (c) having a wide base (d) stacking loose bricks
38. 38.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a heavy roof (c) using a light roof (d) leaving out steel bars
39. 39.🏚️ 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 30 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
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 120 cm tall on a 20 cm base and tower C is 280 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B

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