Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 797 · 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: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
2. 2.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) leaving out steel bars (c) fitting rubber base pads (d) adding steel to concrete
3. 3.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) stacking loose bricks (c) fitting rubber base pads (d) using a heavy roof
4. 4.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) having a wide base (b) stacking loose bricks (c) using a light roof (d) keeping a simple shape
6. 6.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
7. 7.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.🔍 Which is the odd one out? (a) keeping a simple shape (b) having a wide base (c) using flexible joints (d) making brittle joints
9. 9.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a telescope (c) a shake table (d) a microscope
13. 13.🏚️ 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 240 cm tall on a 40 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
14. 14.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) making brittle joints (c) using flexible joints (d) adding cross bracing
15. 15.🏚️ 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 100 cm tall on a 20 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
16. 16.🏚️ 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 20 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 C (b) tower B (c) tower A
17. 17.True or false: having a wide base makes a building safer 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 60 cm tall on a 10 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 10 cm wide base, tower B is 100 cm tall on a 20 cm base and tower C is 70 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
20. 20.🔍 Which is the odd one out? (a) adding steel to concrete (b) using flexible joints (c) using a heavy roof (d) keeping a simple shape
21. 21.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
22. 22.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.🔍 Which is the odd one out? (a) adding cross bracing (b) using a light roof (c) leaving out steel bars (d) adding steel to concrete
24. 24.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
25. 25.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) leaving out steel bars (d) adding steel to concrete
26. 26.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 10 cm wide base, tower B is 10 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 C (b) tower B (c) tower A
28. 28.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) low down (c) on the very top (d) on a thin pole
29. 29.🔍 Which is the odd one out? (a) building tall and narrow (b) leaving out steel bars (c) having a wide base (d) using a heavy roof
30. 30.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
31. 31.🏚️ 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 80 cm tall on a 20 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
32. 32.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a light roof (c) having a wide base (d) raising heavy tanks high
33. 33.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is colourful (c) it is lighter (d) it is taller
34. 34.🏚️ 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 40 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
35. 35.🔍 Which is the odd one out? (a) having a wide base (b) fitting rubber base pads (c) keeping a simple shape (d) building tall and narrow
36. 36.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) stacking loose bricks (c) adding cross bracing (d) using a heavy roof
38. 38.🏚️ 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 120 cm tall on a 30 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
40. 40.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes

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