Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 579 · 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.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a telescope (d) a microscope
2. 2.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) adding cross bracing (c) having a wide base (d) fitting rubber base pads
3. 3.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) raising heavy tanks high (c) making brittle joints (d) leaving out steel bars
5. 5.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
6. 6.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) adding steel to concrete (c) fitting rubber base pads (d) building tall and narrow
8. 8.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) leaving out steel bars (b) adding cross bracing (c) having a wide base (d) adding steel to concrete
11. 11.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
13. 13.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they are cheap (c) they stop shaking (d) they look nice
14. 14.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) adding steel to concrete (d) using a heavy roof
15. 15.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
16. 16.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
17. 17.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) keeping a simple shape (c) using a heavy roof (d) building tall and narrow
19. 19.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) raising heavy tanks high (d) having a wide base
20. 20.🏚️ 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 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
21. 21.🏚️ Does stacking loose bricks 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 80 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
23. 23.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) building tall and narrow (b) making brittle joints (c) stacking loose bricks (d) using flexible joints
25. 25.🔍 Which is the odd one out? (a) adding steel to concrete (b) having a wide base (c) making brittle joints (d) keeping a simple shape
26. 26.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) having a wide base (c) using a light roof (d) using a heavy roof
27. 27.🏚️ Three solid model towers are made of the same material. Tower A is 210 cm tall on a 30 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 120 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.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.🔍 Which is the odd one out? (a) raising heavy tanks high (b) keeping a simple shape (c) using flexible joints (d) fitting rubber base pads
30. 30.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.🏚️ 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 90 cm tall on a 30 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
32. 32.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) adding steel to concrete (c) raising heavy tanks high (d) making brittle joints
33. 33.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) on a thin pole (d) low down
34. 34.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
35. 35.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) using flexible joints (d) raising heavy tanks high
36. 36.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) stacking loose bricks (c) using a light roof (d) keeping a simple shape
37. 37.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) stacking loose bricks (d) using a light roof
38. 38.🏚️ 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 120 cm tall on a 30 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
39. 39.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
40. 40.🏚️ 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 80 cm tall on a 20 cm base and tower C is 140 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A

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