Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 906 · 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) stacking loose bricks (b) leaving out steel bars (c) raising heavy tanks high (d) having a wide base
2. 2.🏚️ 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 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 A (c) tower C
3. 3.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) fitting rubber base pads (d) raising heavy tanks high
4. 4.🔍 Which is the odd one out? (a) having a wide base (b) stacking loose bricks (c) adding steel to concrete (d) fitting rubber base pads
5. 5.🏚️ 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 150 cm tall on a 30 cm base and tower C is 20 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
6. 6.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they bend, not break (d) they are cheap
7. 7.🔍 Which is the odd one out? (a) fitting rubber base pads (b) keeping a simple shape (c) having a wide base (d) leaving out steel bars
8. 8.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
9. 9.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) keeping a simple shape (c) building tall and narrow (d) adding cross bracing
10. 10.🔍 Which is the odd one out? (a) building tall and narrow (b) adding steel to concrete (c) using flexible joints (d) fitting rubber base pads
11. 11.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
12. 12.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on the very top (c) hanging outside (d) on a thin pole
13. 13.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
14. 14.🏚️ 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 150 cm tall on a 30 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
15. 15.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
17. 17.🏚️ 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 80 cm tall on a 20 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
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 90 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 A (b) tower B (c) tower C
19. 19.🔍 Which is the odd one out? (a) fitting rubber base pads (b) keeping a simple shape (c) using a heavy roof (d) adding cross bracing
20. 20.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
21. 21.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) building tall and narrow (d) having a wide base
23. 23.Which of these makes a building safer in earthquakes? (a) using a light roof (b) stacking loose bricks (c) leaving out steel bars (d) making brittle joints
24. 24.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
25. 25.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) keeping a simple shape (d) making brittle joints
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 80 cm tall on a 40 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
27. 27.🏚️ 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 120 cm tall on a 30 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 A (c) tower C
28. 28.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.🔍 Which is the odd one out? (a) building tall and narrow (b) making brittle joints (c) using a light roof (d) leaving out steel bars
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 of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) adding steel to concrete (c) adding cross bracing (d) using a light roof
32. 32.🔍 Which is the odd one out? (a) adding steel to concrete (b) using a heavy roof (c) leaving out steel bars (d) raising heavy tanks high
33. 33.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a fridge (c) a microscope (d) a telescope
35. 35.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.🏚️ 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 120 cm tall on a 40 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
37. 37.🏚️ 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 80 cm tall on a 40 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
38. 38.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is lighter (d) it is taller
39. 39.🏚️ Does fitting rubber base pads 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 30 cm tall on a 30 cm wide base, tower B is 80 cm tall on a 40 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B

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