Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 733 · 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) having a wide base (b) adding cross bracing (c) adding steel to concrete (d) leaving out steel bars
2. 2.🏚️ 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 200 cm tall on a 40 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
3. 3.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using flexible joints (c) using a heavy roof (d) fitting rubber base pads
4. 4.🔍 Which is the odd one out? (a) stacking loose bricks (b) leaving out steel bars (c) keeping a simple shape (d) using a heavy roof
5. 5.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a telescope (c) a microscope (d) a fridge
7. 7.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) keeping a simple shape (c) fitting rubber base pads (d) stacking loose bricks
8. 8.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) making brittle joints (c) using a light roof (d) using a heavy roof
9. 9.🏚️ 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 120 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
10. 10.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
11. 11.🔍 Which is the odd one out? (a) using a light roof (b) having a wide base (c) stacking loose bricks (d) keeping a simple shape
12. 12.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a light roof (c) having a wide base (d) leaving out steel bars
13. 13.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
14. 14.🏚️ 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 40 cm tall on a 10 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
15. 15.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using flexible joints (c) leaving out steel bars (d) building tall and narrow
16. 16.🏚️ 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 70 cm tall on a 10 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
17. 17.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) adding steel to concrete (c) using a heavy roof (d) stacking loose bricks
19. 19.🔍 Which is the odd one out? (a) adding steel to concrete (b) making brittle joints (c) using flexible joints (d) keeping a simple shape
20. 20.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 30 cm wide base, tower B is 200 cm tall on a 40 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
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
22. 22.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
23. 23.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
25. 25.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
26. 26.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
27. 27.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) having a wide base (c) adding cross bracing (d) raising heavy tanks high
28. 28.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) hanging outside (c) on the very top (d) low down
30. 30.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
31. 31.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a heavy roof (c) fitting rubber base pads (d) leaving out steel bars
32. 32.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
33. 33.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
35. 35.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
36. 36.🏚️ 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 60 cm tall on a 30 cm base and tower C is 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
37. 37.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
38. 38.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
39. 39.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) building tall and narrow (c) adding steel to concrete (d) using flexible joints
40. 40.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) making brittle joints (d) using a light roof

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