Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 661 · 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.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using a light roof (c) building tall and narrow (d) having a wide base
2. 2.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) using a heavy roof (b) stacking loose bricks (c) adding steel to concrete (d) leaving out steel bars
4. 4.🔍 Which is the odd one out? (a) having a wide base (b) adding cross bracing (c) stacking loose bricks (d) keeping a simple shape
5. 5.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) using flexible joints (d) stacking loose bricks
6. 6.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) keeping a simple shape (b) building tall and narrow (c) using a light roof (d) adding steel to concrete
8. 8.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.🏚️ 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 40 cm tall on a 10 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
10. 10.🔍 Which is the odd one out? (a) adding cross bracing (b) stacking loose bricks (c) leaving out steel bars (d) building tall and narrow
11. 11.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) making brittle joints (d) using a light roof
12. 12.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they look nice (d) they stop shaking
13. 13.🏚️ 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 150 cm tall on a 30 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
14. 14.🔍 Which is the odd one out? (a) using flexible joints (b) making brittle joints (c) having a wide base (d) fitting rubber base pads
15. 15.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
16. 16.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
17. 17.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) using a heavy roof (d) keeping a simple shape
19. 19.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) making brittle joints (d) having a wide base
20. 20.🔍 Which is the odd one out? (a) using a light roof (b) having a wide base (c) raising heavy tanks high (d) adding cross bracing
21. 21.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) adding steel to concrete (c) using flexible joints (d) raising heavy tanks high
24. 24.Which of these makes a building safer in earthquakes? (a) having a wide base (b) stacking loose bricks (c) building tall and narrow (d) using a heavy roof
25. 25.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
26. 26.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) leaving out steel bars (c) adding cross bracing (d) building tall and narrow
27. 27.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) leaving out steel bars (c) stacking loose bricks (d) keeping a simple shape
28. 28.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on a thin pole (c) low down (d) on the very top
29. 29.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a fridge (c) a telescope (d) a microscope
30. 30.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
31. 31.🔍 Which is the odd one out? (a) using a heavy roof (b) fitting rubber base pads (c) making brittle joints (d) leaving out steel bars
32. 32.🔍 Which is the odd one out? (a) using a heavy roof (b) using a light roof (c) keeping a simple shape (d) adding steel to concrete
33. 33.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.🏚️ 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 210 cm tall on a 30 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
36. 36.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
37. 37.🏚️ 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 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
38. 38.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
39. 39.🏚️ 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 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 C (b) tower B (c) tower A
40. 40.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True

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