Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 862 · 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.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) leaving out steel bars (d) using flexible joints
3. 3.🔍 Which is the odd one out? (a) making brittle joints (b) using a heavy roof (c) leaving out steel bars (d) adding cross bracing
4. 4.🏚️ 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
5. 5.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) fitting rubber base pads (b) having a wide base (c) adding steel to concrete (d) raising heavy tanks high
7. 7.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) having a wide base (c) building tall and narrow (d) adding steel to concrete
8. 8.🏚️ 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 90 cm tall on a 30 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
9. 9.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) fitting rubber base pads (c) using a heavy roof (d) adding cross bracing
10. 10.🔍 Which is the odd one out? (a) adding steel to concrete (b) using a light roof (c) using a heavy roof (d) keeping a simple shape
11. 11.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
12. 12.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is taller (c) it is lighter (d) it is colourful
13. 13.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) raising heavy tanks high (b) leaving out steel bars (c) using a light roof (d) using a heavy roof
15. 15.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
16. 16.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) raising heavy tanks high (c) keeping a simple shape (d) using flexible joints
18. 18.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a telescope (d) a fridge
22. 22.🔍 Which is the odd one out? (a) building tall and narrow (b) having a wide base (c) using flexible joints (d) adding cross bracing
23. 23.🏚️ 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 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
24. 24.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) keeping a simple shape (c) stacking loose bricks (d) raising heavy tanks high
25. 25.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) on a thin pole (c) low down (d) hanging outside
26. 26.🔍 Which is the odd one out? (a) making brittle joints (b) building tall and narrow (c) having a wide base (d) using a heavy roof
27. 27.🔍 Which is the odd one out? (a) making brittle joints (b) using flexible joints (c) having a wide base (d) using a light roof
28. 28.🏚️ 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 280 cm tall on a 40 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
29. 29.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) using flexible joints (c) adding steel to concrete (d) using a light roof
30. 30.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) stacking loose bricks (d) using a light roof
31. 31.🏚️ 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 10 cm tall on a 10 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 C (c) tower A
32. 32.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) leaving out steel bars (d) fitting rubber base pads
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
34. 34.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
35. 35.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
37. 37.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
39. 39.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False

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