Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 275 · 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 safer in earthquakes? (a) adding cross bracing (b) building tall and narrow (c) using a heavy roof (d) raising heavy tanks high
2. 2.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a telescope (d) a microscope
3. 3.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) stacking loose bricks (c) using a heavy roof (d) making brittle joints
4. 4.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) raising heavy tanks high (c) having a wide base (d) making brittle joints
5. 5.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a light roof (c) using a heavy roof (d) stacking loose bricks
7. 7.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
8. 8.🏚️ Three solid model towers are made of the same material. Tower A is 70 cm tall on a 10 cm wide base, tower B is 100 cm tall on a 20 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
9. 9.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.🏚️ 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 100 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
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.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a heavy roof (c) stacking loose bricks (d) adding cross bracing
13. 13.🏚️ 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 40 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 C (b) tower B (c) tower A
14. 14.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 steel to concrete
15. 15.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
16. 16.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they are cheap (c) they look nice (d) they stop shaking
17. 17.🔍 Which is the odd one out? (a) fitting rubber base pads (b) keeping a simple shape (c) building tall and narrow (d) using flexible joints
18. 18.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) stacking loose bricks (c) adding cross bracing (d) fitting rubber base pads
19. 19.🏚️ Does adding cross bracing 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) True (b) False
21. 21.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) adding steel to concrete (c) using a heavy roof (d) stacking loose bricks
22. 22.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) on a thin pole (c) hanging outside (d) low down
23. 23.🔍 Which is the odd one out? (a) keeping a simple shape (b) having a wide base (c) using a light roof (d) raising heavy tanks high
24. 24.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using a light roof (c) raising heavy tanks high (d) keeping a simple shape
26. 26.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
27. 27.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.🏚️ 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 160 cm tall on a 40 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
29. 29.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) making brittle joints (b) adding cross bracing (c) having a wide base (d) keeping a simple shape
31. 31.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
32. 32.🔍 Which is the odd one out? (a) keeping a simple shape (b) adding cross bracing (c) using a heavy roof (d) using flexible joints
33. 33.🔍 Which is the odd one out? (a) stacking loose bricks (b) having a wide base (c) using a heavy roof (d) making brittle joints
34. 34.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
35. 35.🏚️ 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 120 cm tall on a 30 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
36. 36.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) building tall and narrow (c) having a wide base (d) fitting rubber base pads
37. 37.🔍 Which is the odd one out? (a) using flexible joints (b) adding cross bracing (c) stacking loose bricks (d) fitting rubber base pads
38. 38.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
39. 39.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
40. 40.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True

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