Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 324 · 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.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
2. 2.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
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.🏚️ 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 120 cm tall on a 30 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
5. 5.🔍 Which is the odd one out? (a) making brittle joints (b) fitting rubber base pads (c) building tall and narrow (d) leaving out steel bars
6. 6.🏚️ Does using a light roof 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) having a wide base (b) using a light roof (c) leaving out steel bars (d) adding cross bracing
8. 8.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on a thin pole (c) hanging outside (d) on the very top
9. 9.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is taller (d) it is lighter
11. 11.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) adding steel to concrete (c) stacking loose bricks (d) leaving out steel bars
12. 12.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) keeping a simple shape (c) fitting rubber base pads (d) making brittle joints
14. 14.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
15. 15.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a telescope (c) a fridge (d) a shake table
16. 16.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 20 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
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 240 cm tall on a 40 cm base and tower C is 240 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
19. 19.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
20. 20.Which of these makes a building safer in earthquakes? (a) having a wide base (b) using a heavy roof (c) stacking loose bricks (d) leaving out steel bars
21. 21.🏚️ 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 100 cm tall on a 20 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 B (c) tower C
22. 22.🏚️ 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 50 cm tall on a 10 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
23. 23.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) keeping a simple shape (c) adding steel to concrete (d) using flexible joints
24. 24.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 210 cm tall on a 30 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
25. 25.🔍 Which is the odd one out? (a) adding cross bracing (b) using a heavy roof (c) building tall and narrow (d) stacking loose bricks
26. 26.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 30 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
27. 27.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
29. 29.🏚️ Does adding cross bracing 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) using a heavy roof (b) having a wide base (c) making brittle joints (d) leaving out steel bars
31. 31.🔍 Which is the odd one out? (a) raising heavy tanks high (b) fitting rubber base pads (c) using a light roof (d) having a wide base
32. 32.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.🔍 Which is the odd one out? (a) building tall and narrow (b) using a light roof (c) making brittle joints (d) raising heavy tanks high
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
35. 35.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) fitting rubber base pads (c) making brittle joints (d) raising heavy tanks high
36. 36.🔍 Which is the odd one out? (a) raising heavy tanks high (b) building tall and narrow (c) stacking loose bricks (d) adding steel to concrete
37. 37.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) building tall and narrow (d) keeping a simple shape
40. 40.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they are cheap (d) they bend, not break

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