Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 654 · 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) making brittle joints (b) fitting rubber base pads (c) using a heavy roof (d) building tall and narrow
2. 2.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
3. 3.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
4. 4.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) using a light roof (c) adding cross bracing (d) keeping a simple shape
5. 5.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
6. 6.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they bend, not break (d) they look nice
7. 7.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
8. 8.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a light roof (c) using a heavy roof (d) keeping a simple shape
9. 9.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using flexible joints (c) making brittle joints (d) fitting rubber base pads
10. 10.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a telescope (d) a shake table
12. 12.🏚️ 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 60 cm tall on a 20 cm base and tower C is 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
13. 13.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 80 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 A (c) tower C
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 160 cm tall on a 40 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 A (c) tower B
15. 15.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) building tall and narrow (d) having a wide base
17. 17.🔍 Which is the odd one out? (a) having a wide base (b) fitting rubber base pads (c) adding steel to concrete (d) raising heavy tanks high
18. 18.🔍 Which is the odd one out? (a) using a light roof (b) adding cross bracing (c) leaving out steel bars (d) using flexible joints
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
20. 20.🔍 Which is the odd one out? (a) using flexible joints (b) building tall and narrow (c) using a light roof (d) fitting rubber base pads
21. 21.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
22. 22.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
23. 23.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
24. 24.🏚️ 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 30 cm tall on a 30 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
25. 25.🏚️ 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 240 cm tall on a 40 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
26. 26.🏚️ 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 40 cm tall on a 10 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
27. 27.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) adding steel to concrete (d) making brittle joints
28. 28.🔍 Which is the odd one out? (a) fitting rubber base pads (b) having a wide base (c) using a heavy roof (d) adding steel to concrete
29. 29.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 10 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
30. 30.🏚️ Does building tall and narrow 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 safer in earthquakes. (a) True (b) False
32. 32.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
33. 33.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
34. 34.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
35. 35.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
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 40 cm tall on a 10 cm base and tower C is 240 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.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 70 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
39. 39.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.🏚️ 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 30 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B

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