Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 567 · 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) using flexible joints (b) stacking loose bricks (c) using a light roof (d) adding cross bracing
2. 2.🏚️ 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 120 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 A (b) tower B (c) tower C
3. 3.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) fitting rubber base pads (c) raising heavy tanks high (d) adding steel to concrete
5. 5.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
6. 6.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding steel to concrete (c) adding cross bracing (d) raising heavy tanks high
8. 8.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) stacking loose bricks (c) making brittle joints (d) raising heavy tanks high
9. 9.🏚️ Does adding cross bracing 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.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🏚️ 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 70 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
13. 13.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) fitting rubber base pads (c) leaving out steel bars (d) adding steel to concrete
14. 14.🏚️ 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 210 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
15. 15.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a fridge (c) a microscope (d) a shake table
18. 18.🏚️ 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 120 cm tall on a 20 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
19. 19.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) building tall and narrow (c) adding steel to concrete (d) leaving out steel bars
21. 21.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a light roof (c) using a heavy roof (d) having a wide base
23. 23.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they stop shaking (c) they look nice (d) they are cheap
24. 24.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
25. 25.🏚️ 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 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 A (b) tower B (c) tower C
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 120 cm tall on a 30 cm base and tower C is 160 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
27. 27.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) using flexible joints (b) adding steel to concrete (c) building tall and narrow (d) using a light roof
29. 29.🔍 Which is the odd one out? (a) having a wide base (b) using flexible joints (c) adding cross bracing (d) leaving out steel bars
30. 30.Which of these makes a building safer in earthquakes? (a) having a wide base (b) using a heavy roof (c) leaving out steel bars (d) building tall and narrow
31. 31.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
32. 32.🏚️ 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 40 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 A (c) tower C
33. 33.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.🔍 Which is the odd one out? (a) making brittle joints (b) keeping a simple shape (c) using a heavy roof (d) leaving out steel bars
36. 36.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) raising heavy tanks high (b) making brittle joints (c) leaving out steel bars (d) adding steel to concrete
39. 39.🏚️ 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 30 cm tall on a 10 cm base and tower C is 10 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
40. 40.🔍 Which is the odd one out? (a) using a heavy roof (b) stacking loose bricks (c) leaving out steel bars (d) fitting rubber base pads

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