Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 708 · 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.🏚️ 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
2. 2.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) leaving out steel bars (d) having a wide base
4. 4.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they stop shaking (c) they are cheap (d) they look nice
5. 5.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
7. 7.🏚️ 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 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
8. 8.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding cross bracing (c) using a heavy roof (d) using a light roof
9. 9.🔍 Which is the odd one out? (a) using flexible joints (b) fitting rubber base pads (c) building tall and narrow (d) keeping a simple shape
10. 10.🏚️ 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 70 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 A (c) tower C
11. 11.🏚️ 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 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
12. 12.🏚️ 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 180 cm tall on a 30 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
13. 13.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding steel to concrete (c) stacking loose bricks (d) adding cross bracing
15. 15.🔍 Which is the odd one out? (a) adding steel to concrete (b) raising heavy tanks high (c) leaving out steel bars (d) building tall and narrow
16. 16.🏚️ 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 20 cm tall on a 10 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 A (c) tower C
17. 17.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a telescope (c) a microscope (d) a shake table
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
20. 20.🏚️ Three solid model towers are made of the same material. Tower A is 140 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
21. 21.🔍 Which is the odd one out? (a) making brittle joints (b) adding steel to concrete (c) fitting rubber base pads (d) keeping a simple shape
22. 22.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) leaving out steel bars (c) raising heavy tanks high (d) fitting rubber base pads
23. 23.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.🔍 Which is the odd one out? (a) making brittle joints (b) keeping a simple shape (c) stacking loose bricks (d) building tall and narrow
25. 25.🏚️ 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 120 cm tall on a 40 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
26. 26.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) leaving out steel bars (c) using flexible joints (d) raising heavy tanks high
27. 27.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
28. 28.🏚️ 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 30 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
29. 29.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is lighter (d) it is harder to tip over
30. 30.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) adding cross bracing (d) leaving out steel bars
31. 31.🔍 Which is the odd one out? (a) using a light roof (b) making brittle joints (c) raising heavy tanks high (d) leaving out steel bars
32. 32.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) raising heavy tanks high (d) having a wide base
33. 33.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) stacking loose bricks (d) fitting rubber base pads
34. 34.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) stacking loose bricks (b) raising heavy tanks high (c) fitting rubber base pads (d) building tall and narrow
37. 37.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
38. 38.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
39. 39.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
40. 40.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False

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