Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 305 · 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 flexible joints makes a building less safe in earthquakes. (a) False (b) True
2. 2.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) having a wide base (c) stacking loose bricks (d) leaving out steel bars
3. 3.🏚️ Three solid model towers are made of the same material. Tower A is 140 cm tall on a 20 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
4. 4.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) keeping a simple shape (c) making brittle joints (d) leaving out steel bars
6. 6.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) using a light roof (b) building tall and narrow (c) having a wide base (d) fitting rubber base pads
8. 8.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
9. 9.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
10. 10.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) building tall and narrow (c) using flexible joints (d) adding cross bracing
11. 11.🏚️ 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 50 cm tall on a 10 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
12. 12.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) using flexible joints (d) making brittle joints
14. 14.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
15. 15.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
16. 16.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) stacking loose bricks (c) adding steel to concrete (d) raising heavy tanks high
17. 17.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
18. 18.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
19. 19.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) hanging outside (d) low down
20. 20.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is colourful (d) it is taller
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 40 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
22. 22.🔍 Which is the odd one out? (a) using flexible joints (b) raising heavy tanks high (c) using a light roof (d) fitting rubber base pads
23. 23.🏚️ 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 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
24. 24.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a shake table (c) a fridge (d) a microscope
25. 25.🏚️ 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 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
26. 26.🏚️ 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 280 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 A (b) tower C (c) tower B
27. 27.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they stop shaking (d) they bend, not break
28. 28.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) keeping a simple shape (d) building tall and narrow
30. 30.🔍 Which is the odd one out? (a) using flexible joints (b) adding steel to concrete (c) having a wide base (d) leaving out steel bars
31. 31.🔍 Which is the odd one out? (a) stacking loose bricks (b) fitting rubber base pads (c) using a heavy roof (d) leaving out steel bars
32. 32.🏚️ 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 160 cm tall on a 40 cm base and tower C is 140 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
33. 33.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) adding steel to concrete (c) fitting rubber base pads (d) using a heavy roof
34. 34.🏚️ 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 70 cm tall on a 10 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 B (c) tower A
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 80 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
36. 36.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a light roof (c) making brittle joints (d) having a wide base
38. 38.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
39. 39.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

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