Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 843 · 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 safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) stacking loose bricks (d) adding cross bracing
2. 2.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.🏚️ Does using flexible joints 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 less safe in earthquakes? (a) using a light roof (b) keeping a simple shape (c) using flexible joints (d) leaving out steel bars
5. 5.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) making brittle joints (c) raising heavy tanks high (d) using flexible joints
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.🏚️ 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
8. 8.🏚️ 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 40 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
9. 9.🔍 Which is the odd one out? (a) using a light roof (b) stacking loose bricks (c) using a heavy roof (d) building tall and narrow
10. 10.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a shake table (d) a telescope
11. 11.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
12. 12.🏚️ 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 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
13. 13.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) leaving out steel bars (d) building tall and narrow
14. 14.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.🏚️ Does raising heavy tanks high 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 50 cm tall on a 10 cm wide base, tower B is 40 cm tall on a 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
17. 17.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) stacking loose bricks (c) having a wide base (d) using a heavy roof
18. 18.🏚️ 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 120 cm tall on a 20 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 C (c) tower B
19. 19.🏚️ 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 40 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
20. 20.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.🔍 Which is the odd one out? (a) fitting rubber base pads (b) having a wide base (c) leaving out steel bars (d) adding steel to concrete
22. 22.🏚️ 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
23. 23.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
24. 24.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) stacking loose bricks (c) fitting rubber base pads (d) using a heavy roof
25. 25.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
26. 26.🏚️ 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 60 cm tall on a 20 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
27. 27.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
28. 28.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
29. 29.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
30. 30.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
31. 31.🔍 Which is the odd one out? (a) raising heavy tanks high (b) keeping a simple shape (c) using a light roof (d) adding steel to concrete
32. 32.🔍 Which is the odd one out? (a) using a light roof (b) using flexible joints (c) using a heavy roof (d) adding steel to concrete
33. 33.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) using flexible joints (c) using a light roof (d) adding steel to concrete
35. 35.🏚️ 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 60 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 B (b) tower C (c) tower A
36. 36.🔍 Which is the odd one out? (a) using a light roof (b) having a wide base (c) making brittle joints (d) adding steel to concrete
37. 37.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 30 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
38. 38.🔍 Which is the odd one out? (a) using a heavy roof (b) leaving out steel bars (c) adding steel to concrete (d) raising heavy tanks high
39. 39.🏚️ Why is a wide base safer? (a) it is taller (b) it is harder to tip over (c) it is lighter (d) it is colourful
40. 40.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False

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