Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 763 · 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.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
2. 2.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) using flexible joints (c) using a light roof (d) adding cross bracing
4. 4.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) building tall and narrow (c) fitting rubber base pads (d) adding cross bracing
5. 5.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) low down (c) hanging outside (d) on a thin pole
6. 6.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they bend, not break (c) they stop shaking (d) they are cheap
7. 7.🏚️ 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 100 cm tall on a 20 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
8. 8.🔍 Which is the odd one out? (a) raising heavy tanks high (b) building tall and narrow (c) using a heavy roof (d) having a wide base
9. 9.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a telescope (c) a shake table (d) a fridge
11. 11.🔍 Which is the odd one out? (a) building tall and narrow (b) leaving out steel bars (c) using a heavy roof (d) adding steel to concrete
12. 12.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) fitting rubber base pads (d) stacking loose bricks
13. 13.🔍 Which is the odd one out? (a) using a light roof (b) stacking loose bricks (c) making brittle joints (d) leaving out steel bars
14. 14.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.🔍 Which is the odd one out? (a) building tall and narrow (b) adding steel to concrete (c) adding cross bracing (d) fitting rubber base pads
16. 16.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) having a wide base (d) raising heavy tanks high
17. 17.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
18. 18.🏚️ Three solid model towers are made of the same material. Tower A is 210 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
19. 19.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
21. 21.🏚️ 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 40 cm tall on a 40 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
22. 22.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.🔍 Which is the odd one out? (a) making brittle joints (b) fitting rubber base pads (c) using a light roof (d) having a wide base
24. 24.Which of these makes a building safer in earthquakes? (a) using a light roof (b) making brittle joints (c) building tall and narrow (d) stacking loose bricks
25. 25.🏚️ 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 210 cm tall on a 30 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
26. 26.🏚️ 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 100 cm tall on a 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
27. 27.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
28. 28.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) making brittle joints (c) keeping a simple shape (d) adding steel to concrete
29. 29.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) adding cross bracing (c) using a heavy roof (d) leaving out steel bars
30. 30.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) using a heavy roof (b) leaving out steel bars (c) building tall and narrow (d) fitting rubber base pads
32. 32.🏚️ 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 40 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
33. 33.🏚️ 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 80 cm tall on a 40 cm base and tower C is 40 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
34. 34.🏚️ 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 30 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
35. 35.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
37. 37.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
38. 38.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) adding steel to concrete (c) using a light roof (d) keeping a simple shape
39. 39.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) having a wide base (c) fitting rubber base pads (d) stacking loose bricks
40. 40.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True

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