Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 975 · 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 less safe in earthquakes? (a) adding cross bracing (b) raising heavy tanks high (c) keeping a simple shape (d) adding steel to concrete
2. 2.🔍 Which is the odd one out? (a) using flexible joints (b) building tall and narrow (c) stacking loose bricks (d) raising heavy tanks high
3. 3.🏚️ 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 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 A (b) tower B (c) tower C
4. 4.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
5. 5.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) low down (d) on a thin pole
6. 6.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) stacking loose bricks (d) adding cross bracing
7. 7.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
8. 8.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.🏚️ 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 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
10. 10.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
11. 11.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
12. 12.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding steel to concrete (c) using a heavy roof (d) keeping a simple shape
13. 13.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 10 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
14. 14.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) making brittle joints (c) stacking loose bricks (d) using flexible joints
15. 15.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 40 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 C (b) tower B (c) tower A
17. 17.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) raising heavy tanks high (c) building tall and narrow (d) stacking loose bricks
18. 18.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a telescope (c) a fridge (d) a shake table
19. 19.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
20. 20.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.🏚️ 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
22. 22.🔍 Which is the odd one out? (a) adding steel to concrete (b) stacking loose bricks (c) leaving out steel bars (d) raising heavy tanks high
23. 23.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) fitting rubber base pads (d) stacking loose bricks
24. 24.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
25. 25.🏚️ 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 280 cm tall on a 40 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
26. 26.🔍 Which is the odd one out? (a) using a heavy roof (b) making brittle joints (c) stacking loose bricks (d) keeping a simple shape
27. 27.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) having a wide base (c) raising heavy tanks high (d) leaving out steel bars
29. 29.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.🔍 Which is the odd one out? (a) making brittle joints (b) using a light roof (c) keeping a simple shape (d) fitting rubber base pads
31. 31.🔍 Which is the odd one out? (a) using a light roof (b) leaving out steel bars (c) stacking loose bricks (d) using a heavy roof
32. 32.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 90 cm tall on a 30 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
33. 33.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) having a wide base (d) using a heavy roof
35. 35.🔍 Which is the odd one out? (a) building tall and narrow (b) adding cross bracing (c) using flexible joints (d) having a wide base
36. 36.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) making brittle joints (c) adding steel to concrete (d) having a wide base
37. 37.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
38. 38.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
39. 39.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
40. 40.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False

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