Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 315 · 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) using a heavy roof (b) raising heavy tanks high (c) using flexible joints (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 50 cm tall on a 10 cm base and tower C is 210 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
3. 3.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) stacking loose bricks (c) using a heavy roof (d) making brittle joints
4. 4.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🏚️ 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 280 cm tall on a 40 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
6. 6.🔍 Which is the odd one out? (a) building tall and narrow (b) using flexible joints (c) having a wide base (d) keeping a simple shape
7. 7.🔍 Which is the odd one out? (a) using flexible joints (b) using a heavy roof (c) making brittle joints (d) stacking loose bricks
8. 8.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
9. 9.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
10. 10.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on a thin pole (c) hanging outside (d) on the very top
11. 11.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.Which of these makes a building safer in earthquakes? (a) having a wide base (b) using a heavy roof (c) stacking loose bricks (d) making brittle joints
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 200 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 90 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.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) making brittle joints (c) adding steel to concrete (d) raising heavy tanks high
16. 16.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
17. 17.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
18. 18.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 80 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
20. 20.🏚️ 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 20 cm tall on a 10 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
21. 21.Which of these makes a building safer in earthquakes? (a) using a light roof (b) raising heavy tanks high (c) making brittle joints (d) building tall and narrow
22. 22.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
23. 23.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
24. 24.🏚️ Does raising heavy tanks high 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 safer in earthquakes? (a) making brittle joints (b) building tall and narrow (c) fitting rubber base pads (d) stacking loose bricks
26. 26.🏚️ 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 50 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 B (b) tower C (c) tower A
27. 27.🏚️ Why is a wide base safer? (a) it is colourful (b) it is lighter (c) it is harder to tip over (d) it is taller
28. 28.🔍 Which is the odd one out? (a) adding cross bracing (b) using a light roof (c) raising heavy tanks high (d) having a wide base
29. 29.🏚️ 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 100 cm tall on a 20 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
30. 30.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) keeping a simple shape (c) adding cross bracing (d) adding steel to concrete
31. 31.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) adding steel to concrete (d) leaving out steel bars
32. 32.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
34. 34.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a shake table (d) a fridge
35. 35.🏚️ 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 120 cm tall on a 20 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
36. 36.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) making brittle joints (b) building tall and narrow (c) keeping a simple shape (d) leaving out steel bars
38. 38.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) using a heavy roof (b) having a wide base (c) making brittle joints (d) raising heavy tanks high
40. 40.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

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