Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 14 · 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) on a thin pole (b) on the very top (c) low down (d) hanging outside
2. 2.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) making brittle joints (c) using a light roof (d) having a wide base
3. 3.🏚️ 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 280 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 C (b) tower A (c) tower B
4. 4.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.🏚️ 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 50 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
7. 7.🏚️ 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
8. 8.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) having a wide base (b) using flexible joints (c) adding steel to concrete (d) using a heavy roof
10. 10.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) building tall and narrow (d) fitting rubber base pads
11. 11.🏚️ Three solid model towers are made of the same material. Tower A is 70 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 20 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
12. 12.Which of these makes a building safer in earthquakes? (a) having a wide base (b) building tall and narrow (c) using a heavy roof (d) making brittle joints
13. 13.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) building tall and narrow (b) leaving out steel bars (c) raising heavy tanks high (d) having a wide base
15. 15.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a telescope (c) a shake table (d) a fridge
16. 16.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 40 cm wide base, tower B is 60 cm tall on a 10 cm base and tower C is 50 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.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a light roof (c) making brittle joints (d) adding steel to concrete
20. 20.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
24. 24.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) adding cross bracing (c) stacking loose bricks (d) using flexible joints
26. 26.🏚️ 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 280 cm tall on a 40 cm base. Which is the easiest 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) fitting rubber base pads (b) having a wide base (c) using flexible joints (d) leaving out steel bars
28. 28.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) making brittle joints (c) raising heavy tanks high (d) leaving out steel bars
29. 29.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) adding cross bracing (d) raising heavy tanks high
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
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 40 cm tall on a 10 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 B (c) tower C
32. 32.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) stacking loose bricks (c) fitting rubber base pads (d) building tall and narrow
33. 33.🔍 Which is the odd one out? (a) keeping a simple shape (b) making brittle joints (c) using a heavy roof (d) stacking loose bricks
34. 34.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) making brittle joints (c) adding steel to concrete (d) stacking loose bricks
35. 35.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) keeping a simple shape (c) using flexible joints (d) adding steel to concrete
36. 36.🔍 Which is the odd one out? (a) raising heavy tanks high (b) fitting rubber base pads (c) building tall and narrow (d) leaving out steel bars
37. 37.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
38. 38.🏚️ 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 50 cm tall on a 10 cm base and tower C is 140 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
39. 39.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) adding cross bracing (c) leaving out steel bars (d) using a heavy roof
40. 40.🏚️ 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 40 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 C (c) tower A

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