Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 545 · 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.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a light roof (c) building tall and narrow (d) using a heavy roof
4. 4.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) making brittle joints (d) fitting rubber base pads
5. 5.🔍 Which is the odd one out? (a) building tall and narrow (b) raising heavy tanks high (c) leaving out steel bars (d) adding steel to concrete
6. 6.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using a heavy roof (c) using a light roof (d) adding steel to concrete
8. 8.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) keeping a simple shape (c) raising heavy tanks high (d) using a heavy roof
9. 9.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
10. 10.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
11. 11.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
12. 12.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they stop shaking (c) they look nice (d) they bend, not break
13. 13.🔍 Which is the odd one out? (a) adding steel to concrete (b) using flexible joints (c) raising heavy tanks high (d) adding cross bracing
14. 14.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
15. 15.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) having a wide base (c) leaving out steel bars (d) keeping a simple shape
16. 16.🏚️ 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 200 cm tall on a 40 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
17. 17.🏚️ 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 140 cm tall on a 20 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
18. 18.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a heavy roof (c) adding cross bracing (d) raising heavy tanks high
19. 19.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) adding steel to concrete
20. 20.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using a light roof (c) building tall and narrow (d) fitting rubber base pads
21. 21.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.🏚️ 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 240 cm tall on a 40 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
23. 23.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
24. 24.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a fridge (c) a telescope (d) a microscope
25. 25.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
26. 26.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) keeping a simple shape (c) using flexible joints (d) using a light roof
27. 27.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
28. 28.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) leaving out steel bars (c) using a heavy roof (d) having a wide base
29. 29.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
30. 30.🔍 Which is the odd one out? (a) keeping a simple shape (b) making brittle joints (c) adding cross bracing (d) using flexible joints
31. 31.🏚️ 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 280 cm tall on a 40 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 B (c) tower A
32. 32.🔍 Which is the odd one out? (a) making brittle joints (b) using a heavy roof (c) building tall and narrow (d) adding cross bracing
33. 33.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
34. 34.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.🏚️ 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 20 cm tall on a 10 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
36. 36.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using flexible joints (c) making brittle joints (d) raising heavy tanks high
37. 37.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
38. 38.🏚️ 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 180 cm tall on a 30 cm base and tower C is 210 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
39. 39.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False

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