Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 637 · 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) using flexible joints (b) leaving out steel bars (c) adding cross bracing (d) having a wide base
2. 2.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) leaving out steel bars (c) using flexible joints (d) adding cross bracing
4. 4.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 40 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
5. 5.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
6. 6.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using flexible joints (c) building tall and narrow (d) using a heavy roof
7. 7.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
8. 8.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) keeping a simple shape (c) using flexible joints (d) building tall and narrow
9. 9.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) having a wide base (c) making brittle joints (d) using flexible joints
10. 10.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they look nice (d) they are cheap
11. 11.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🏚️ 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 80 cm tall on a 40 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
13. 13.🔍 Which is the odd one out? (a) making brittle joints (b) adding cross bracing (c) building tall and narrow (d) using a heavy roof
14. 14.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) keeping a simple shape (c) adding cross bracing (d) having a wide base
15. 15.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 20 cm wide base, tower B is 150 cm tall on a 30 cm base and tower C is 40 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
16. 16.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
17. 17.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
18. 18.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
20. 20.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) building tall and narrow (b) using a light roof (c) using a heavy roof (d) raising heavy tanks high
22. 22.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) raising heavy tanks high (d) adding cross bracing
24. 24.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) using a heavy roof (d) keeping a simple shape
25. 25.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a microscope (c) a telescope (d) a fridge
26. 26.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) fitting rubber base pads (d) using a heavy roof
27. 27.🔍 Which is the odd one out? (a) having a wide base (b) adding steel to concrete (c) building tall and narrow (d) using flexible joints
28. 28.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
29. 29.🏚️ 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 80 cm tall on a 40 cm base and tower C is 240 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.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
31. 31.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
32. 32.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.🔍 Which is the odd one out? (a) leaving out steel bars (b) adding steel to concrete (c) stacking loose bricks (d) raising heavy tanks high
34. 34.🔍 Which is the odd one out? (a) leaving out steel bars (b) raising heavy tanks high (c) stacking loose bricks (d) keeping a simple shape
35. 35.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
36. 36.🏚️ 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 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 A (b) tower B (c) tower C
37. 37.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) using a light roof (d) fitting rubber base pads
38. 38.🔍 Which is the odd one out? (a) keeping a simple shape (b) making brittle joints (c) using a light roof (d) having a wide base
39. 39.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) making brittle joints (c) stacking loose bricks (d) having a wide base

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