Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 786 · 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) keeping a simple shape (b) adding steel to concrete (c) stacking loose bricks (d) fitting rubber base pads
2. 2.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) adding steel to concrete (c) having a wide base (d) using flexible joints
3. 3.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.🏚️ Three solid model towers are made of the same material. Tower A is 70 cm tall on a 10 cm wide base, tower B is 200 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 C (c) tower A
5. 5.🔍 Which is the odd one out? (a) stacking loose bricks (b) having a wide base (c) using flexible joints (d) keeping a simple shape
6. 6.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
7. 7.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.🏚️ 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 30 cm tall on a 10 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
9. 9.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is lighter (c) it is colourful (d) it is taller
10. 10.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) stacking loose bricks (c) raising heavy tanks high (d) using a heavy roof
11. 11.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) adding steel to concrete (b) using a heavy roof (c) leaving out steel bars (d) stacking loose bricks
13. 13.🏚️ 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 30 cm tall on a 10 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
14. 14.🏚️ 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
15. 15.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.🔍 Which is the odd one out? (a) adding steel to concrete (b) adding cross bracing (c) having a wide base (d) raising heavy tanks high
17. 17.🔍 Which is the odd one out? (a) adding steel to concrete (b) using a light roof (c) having a wide base (d) leaving out steel bars
18. 18.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.🔍 Which is the odd one out? (a) stacking loose bricks (b) keeping a simple shape (c) raising heavy tanks high (d) making brittle joints
22. 22.🏚️ 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 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
23. 23.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
24. 24.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
26. 26.🔍 Which is the odd one out? (a) keeping a simple shape (b) having a wide base (c) adding steel to concrete (d) using a heavy roof
27. 27.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
30. 30.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) using flexible joints (d) raising heavy tanks high
31. 31.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) fitting rubber base pads (c) making brittle joints (d) keeping a simple shape
32. 32.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) adding cross bracing (c) raising heavy tanks high (d) stacking loose bricks
33. 33.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using a light roof (c) using a heavy roof (d) adding steel to concrete
34. 34.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a fridge (d) a telescope
35. 35.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.🏚️ Three solid model towers are made of the same material. Tower A is 90 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 10 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 C (c) tower A
37. 37.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
38. 38.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
39. 39.🏚️ 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 150 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
40. 40.🏚️ 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 30 cm tall on a 30 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C

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