Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 346 · 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) raising heavy tanks high (b) building tall and narrow (c) leaving out steel bars (d) using flexible joints
2. 2.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.🔍 Which is the odd one out? (a) having a wide base (b) using a light roof (c) keeping a simple shape (d) raising heavy tanks high
4. 4.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) using a light roof (c) fitting rubber base pads (d) adding steel to concrete
5. 5.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
6. 6.🏚️ 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 120 cm tall on a 40 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
7. 7.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
8. 8.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.🏚️ 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 90 cm tall on a 30 cm base and tower C is 280 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
10. 10.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
11. 11.🏚️ 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 70 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
12. 12.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) fitting rubber base pads (c) using flexible joints (d) having a wide base
13. 13.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) low down (c) on the very top (d) on a thin pole
14. 14.🔍 Which is the odd one out? (a) adding steel to concrete (b) building tall and narrow (c) leaving out steel bars (d) making brittle joints
15. 15.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) raising heavy tanks high (c) using a heavy roof (d) leaving out steel bars
16. 16.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a fridge (c) a telescope (d) a microscope
18. 18.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they look nice (c) they stop shaking (d) they are cheap
19. 19.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is harder to tip over (d) it is colourful
20. 20.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
21. 21.🏚️ 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 120 cm tall on a 40 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 A (c) tower C
22. 22.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a heavy roof (c) adding cross bracing (d) having a wide base
23. 23.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
24. 24.🏚️ 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 60 cm tall on a 10 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
25. 25.🏚️ 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 30 cm tall on a 30 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 A (c) tower B
26. 26.🏚️ 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 60 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 B (b) tower A (c) tower C
27. 27.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using flexible joints (c) using a heavy roof (d) adding steel to concrete
28. 28.🏚️ 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 40 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
29. 29.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
30. 30.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
31. 31.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) having a wide base (d) using a light roof
33. 33.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding cross bracing (c) stacking loose bricks (d) leaving out steel bars
35. 35.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) adding steel to concrete (c) fitting rubber base pads (d) keeping a simple shape
36. 36.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
37. 37.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
39. 39.🏚️ 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 140 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 90 cm tall on a 30 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A

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