Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 366 · 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.🏚️ 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 100 cm tall on a 20 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
2. 2.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) raising heavy tanks high
3. 3.🔍 Which is the odd one out? (a) using a light roof (b) adding cross bracing (c) having a wide base (d) using a heavy roof
4. 4.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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 50 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
6. 6.🔍 Which is the odd one out? (a) building tall and narrow (b) adding steel to concrete (c) keeping a simple shape (d) using flexible joints
7. 7.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
8. 8.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) having a wide base (c) using a light roof (d) leaving out steel bars
10. 10.🏚️ 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 20 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
11. 11.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) making brittle joints (c) having a wide base (d) using a heavy roof
12. 12.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
13. 13.🏚️ 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 10 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
14. 14.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) on a thin pole (c) hanging outside (d) low down
16. 16.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.🏚️ 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 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
19. 19.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) using a heavy roof (d) keeping a simple shape
20. 20.🏚️ 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 280 cm tall on a 40 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
21. 21.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
22. 22.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
23. 23.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) adding cross bracing (c) having a wide base (d) fitting rubber base pads
24. 24.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.🔍 Which is the odd one out? (a) making brittle joints (b) raising heavy tanks high (c) using a heavy roof (d) having a wide base
26. 26.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) raising heavy tanks high (b) fitting rubber base pads (c) stacking loose bricks (d) using a heavy roof
28. 28.🔍 Which is the odd one out? (a) stacking loose bricks (b) raising heavy tanks high (c) using a heavy roof (d) adding cross bracing
29. 29.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
30. 30.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding steel to concrete (c) using a heavy roof (d) raising heavy tanks high
31. 31.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they stop shaking (d) they bend, not break
32. 32.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.🏚️ 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 100 cm tall on a 20 cm base and tower C is 210 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
34. 34.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) adding steel to concrete (d) leaving out steel bars
35. 35.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a light roof (c) adding cross bracing (d) keeping a simple shape
37. 37.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
38. 38.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a telescope (c) a fridge (d) a shake table
39. 39.🔍 Which is the odd one out? (a) adding cross bracing (b) using a light roof (c) fitting rubber base pads (d) stacking loose bricks
40. 40.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True

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