Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 241 · 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.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 30 cm wide base, tower B is 20 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 B (b) tower C (c) tower A
2. 2.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a heavy roof (c) making brittle joints (d) leaving out steel bars
3. 3.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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 less safe in earthquakes. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) keeping a simple shape (b) adding steel to concrete (c) raising heavy tanks high (d) using flexible joints
8. 8.🏚️ 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 180 cm tall on a 30 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
9. 9.🔍 Which is the odd one out? (a) having a wide base (b) stacking loose bricks (c) using flexible joints (d) fitting rubber base pads
10. 10.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
11. 11.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
12. 12.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 30 cm tall on a 10 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 A (c) tower B
15. 15.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) low down (c) on a thin pole (d) on the very top
16. 16.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) keeping a simple shape (c) leaving out steel bars (d) using a light roof
17. 17.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a telescope (d) a fridge
18. 18.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 40 cm wide base, tower B is 90 cm tall on a 30 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 A (c) tower B
19. 19.🔍 Which is the odd one out? (a) adding steel to concrete (b) making brittle joints (c) fitting rubber base pads (d) using a light roof
20. 20.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they stop shaking (d) they bend, not break
21. 21.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) building tall and narrow (d) fitting rubber base pads
22. 22.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) adding cross bracing (c) leaving out steel bars (d) stacking loose bricks
23. 23.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) making brittle joints (c) leaving out steel bars (d) adding steel to concrete
24. 24.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) using a light roof (c) fitting rubber base pads (d) having a wide base
25. 25.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
26. 26.🏚️ 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 80 cm tall on a 40 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
27. 27.🔍 Which is the odd one out? (a) adding steel to concrete (b) building tall and narrow (c) making brittle joints (d) raising heavy tanks high
28. 28.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) having a wide base (d) leaving out steel bars
29. 29.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) adding cross bracing (c) keeping a simple shape (d) having a wide base
30. 30.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
31. 31.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) raising heavy tanks high (c) having a wide base (d) keeping a simple shape
32. 32.🔍 Which is the odd one out? (a) making brittle joints (b) leaving out steel bars (c) stacking loose bricks (d) adding cross bracing
33. 33.🏚️ 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 240 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 C (b) tower B (c) tower A
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 20 cm tall on a 20 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
36. 36.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) adding steel to concrete (b) building tall and narrow (c) fitting rubber base pads (d) using flexible joints
38. 38.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
39. 39.🏚️ 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 200 cm tall on a 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
40. 40.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True

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