Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 296 · 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 is the odd one out? (a) adding cross bracing (b) fitting rubber base pads (c) using a heavy roof (d) adding steel to concrete
2. 2.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) using a heavy roof (c) fitting rubber base pads (d) keeping a simple shape
3. 3.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on a thin pole (c) low down (d) on the very top
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.🏚️ 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 100 cm tall on a 20 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 C (c) tower B
6. 6.🏚️ 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 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
7. 7.🏚️ 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 160 cm tall on a 40 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
8. 8.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding steel to concrete (c) making brittle joints (d) using a heavy roof
9. 9.🔍 Which is the odd one out? (a) leaving out steel bars (b) fitting rubber base pads (c) raising heavy tanks high (d) building tall and narrow
10. 10.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
11. 11.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
12. 12.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) stacking loose bricks (c) using flexible joints (d) adding steel to concrete
14. 14.🏚️ 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 180 cm tall on a 30 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
15. 15.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) making brittle joints (d) keeping a simple shape
16. 16.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) fitting rubber base pads (d) leaving out steel bars
18. 18.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
20. 20.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 20 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
21. 21.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) building tall and narrow (d) having a wide base
22. 22.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a telescope (c) a microscope (d) a fridge
23. 23.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they look nice (d) they stop shaking
24. 24.🏚️ 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 30 cm tall on a 10 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
25. 25.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.🏚️ 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 150 cm tall on a 30 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
27. 27.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) making brittle joints (d) using flexible joints
28. 28.🏚️ 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 50 cm tall on a 10 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
29. 29.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
30. 30.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
31. 31.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) keeping a simple shape (b) adding steel to concrete (c) fitting rubber base pads (d) making brittle joints
33. 33.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) adding steel to concrete (c) raising heavy tanks high (d) using a heavy roof
34. 34.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) keeping a simple shape (c) raising heavy tanks high (d) adding steel to concrete
36. 36.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
37. 37.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) using flexible joints (b) raising heavy tanks high (c) using a light roof (d) adding steel to concrete
39. 39.🏚️ Does adding cross bracing 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 80 cm tall on a 40 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B

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