Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 48 · 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) leaving out steel bars (c) adding cross bracing (d) using a light roof
2. 2.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
3. 3.🏚️ 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
4. 4.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
5. 5.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) raising heavy tanks high (d) using flexible joints
6. 6.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
7. 7.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a microscope (c) a telescope (d) a shake table
8. 8.🏚️ 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 30 cm tall on a 30 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
9. 9.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) building tall and narrow (b) using flexible joints (c) adding steel to concrete (d) having a wide base
12. 12.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) adding cross bracing (d) using a heavy roof
13. 13.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.🏚️ 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 10 cm tall on a 10 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
15. 15.🏚️ 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 30 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 A (b) tower B (c) tower C
16. 16.🏚️ 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 180 cm tall on a 30 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
17. 17.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
18. 18.🏚️ 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 50 cm tall on a 10 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
19. 19.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
20. 20.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they stop shaking (c) they bend, not break (d) they look nice
21. 21.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) making brittle joints (d) using a light roof
22. 22.🏚️ 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 120 cm tall on a 30 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
23. 23.🏚️ 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 40 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
24. 24.🏚️ 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 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
25. 25.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
26. 26.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) leaving out steel bars (c) making brittle joints (d) keeping a simple shape
27. 27.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.🔍 Which is the odd one out? (a) adding steel to concrete (b) having a wide base (c) leaving out steel bars (d) fitting rubber base pads
29. 29.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) using a light roof (d) stacking loose bricks
30. 30.🏚️ 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 180 cm tall on a 30 cm base and tower C is 240 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
31. 31.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) adding steel to concrete (c) adding cross bracing (d) using a light roof
32. 32.🏚️ 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 100 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 A (b) tower B (c) tower C
33. 33.🔍 Which is the odd one out? (a) using a light roof (b) using a heavy roof (c) using flexible joints (d) fitting rubber base pads
34. 34.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
35. 35.🏚️ 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 60 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
36. 36.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
37. 37.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 20 cm wide base, tower B is 120 cm tall on a 20 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
40. 40.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True

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