Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 900 · 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 60 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 10 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
2. 2.🏚️ 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 10 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
3. 3.🔍 Which is the odd one out? (a) raising heavy tanks high (b) keeping a simple shape (c) adding steel to concrete (d) using a light roof
4. 4.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
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 20 cm tall on a 10 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
6. 6.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) making brittle joints (c) using a light roof (d) fitting rubber base pads
7. 7.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
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.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) low down (d) on a thin pole
11. 11.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
12. 12.🔍 Which is the odd one out? (a) keeping a simple shape (b) raising heavy tanks high (c) using a heavy roof (d) building tall and narrow
13. 13.🔍 Which is the odd one out? (a) adding cross bracing (b) using a light roof (c) adding steel to concrete (d) using a heavy roof
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 70 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
15. 15.🔍 Which is the odd one out? (a) leaving out steel bars (b) keeping a simple shape (c) using flexible joints (d) adding cross bracing
16. 16.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
18. 18.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they stop shaking (d) they bend, not break
19. 19.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a light roof (c) keeping a simple shape (d) leaving out steel bars
20. 20.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a light roof (c) adding cross bracing (d) stacking loose bricks
21. 21.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) leaving out steel bars (c) stacking loose bricks (d) using a light roof
22. 22.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.Which of these makes a building safer in earthquakes? (a) having a wide base (b) building tall and narrow (c) making brittle joints (d) leaving out steel bars
24. 24.🏚️ 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 80 cm tall on a 40 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 B (c) tower C
25. 25.🏚️ 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 30 cm tall on a 10 cm base and tower C is 40 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
26. 26.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.🏚️ 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 50 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
28. 28.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
29. 29.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a shake table (d) a telescope
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 of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) keeping a simple shape (d) stacking loose bricks
33. 33.🔍 Which is the odd one out? (a) using a heavy roof (b) having a wide base (c) leaving out steel bars (d) raising heavy tanks high
34. 34.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
35. 35.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
36. 36.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
37. 37.🏚️ 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 10 cm tall on a 10 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
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 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
39. 39.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) fitting rubber base pads (c) keeping a simple shape (d) stacking loose bricks
40. 40.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a heavy roof (c) using a light roof (d) adding cross bracing

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