Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 276 · 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) building tall and narrow (b) making brittle joints (c) leaving out steel bars (d) having a wide base
2. 2.🏚️ 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
3. 3.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) using flexible joints (d) building tall and narrow
4. 4.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is colourful (c) it is lighter (d) it is taller
6. 6.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
7. 7.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
8. 8.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) adding cross bracing (c) stacking loose bricks (d) making brittle joints
9. 9.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding steel to concrete (c) fitting rubber base pads (d) having a wide base
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.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on the very top (c) low down (d) on a thin pole
12. 12.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) building tall and narrow (c) leaving out steel bars (d) adding steel to concrete
13. 13.🔍 Which is the odd one out? (a) leaving out steel bars (b) using flexible joints (c) keeping a simple shape (d) fitting rubber base pads
14. 14.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 10 cm wide base, tower B is 20 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
16. 16.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a telescope (d) a fridge
17. 17.🏚️ 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 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
18. 18.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🔍 Which is the odd one out? (a) using flexible joints (b) keeping a simple shape (c) raising heavy tanks high (d) adding steel to concrete
20. 20.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
21. 21.🏚️ 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 30 cm tall on a 30 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
22. 22.🔍 Which is the odd one out? (a) using a heavy roof (b) fitting rubber base pads (c) using flexible joints (d) using a light roof
23. 23.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) using flexible joints (c) having a wide base (d) adding cross bracing
25. 25.🏚️ 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 40 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
26. 26.🔍 Which is the odd one out? (a) building tall and narrow (b) using flexible joints (c) fitting rubber base pads (d) having a wide base
27. 27.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a light roof (c) raising heavy tanks high (d) leaving out steel bars
28. 28.🏚️ Three solid model towers are made of the same material. Tower A is 320 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
29. 29.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) building tall and narrow (c) fitting rubber base pads (d) keeping a simple shape
30. 30.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
31. 31.🏚️ 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 80 cm tall on a 20 cm base and tower C is 320 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
32. 32.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) having a wide base (c) keeping a simple shape (d) fitting rubber base pads
34. 34.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
35. 35.🏚️ 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 40 cm tall on a 10 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
36. 36.🏚️ 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 30 cm tall on a 10 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 A (c) tower B
37. 37.🏚️ 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 10 cm tall on a 10 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
38. 38.🏚️ 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 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
39. 39.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes

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