Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 810 · 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) True (b) False
2. 2.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) keeping a simple shape (d) leaving out steel bars
4. 4.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is colourful (c) it is taller (d) it is lighter
5. 5.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) using flexible joints (c) keeping a simple shape (d) making brittle joints
6. 6.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using flexible joints (c) leaving out steel bars (d) fitting rubber base pads
10. 10.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a light roof (c) adding cross bracing (d) leaving out steel bars
11. 11.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
12. 12.🏚️ 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 30 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
13. 13.🏚️ 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 160 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 A (b) tower C (c) tower B
14. 14.🏚️ 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 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
15. 15.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) making brittle joints (c) using flexible joints (d) building tall and narrow
16. 16.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they bend, not break (d) they are cheap
17. 17.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding steel to concrete (c) using a light roof (d) adding cross bracing
18. 18.🏚️ Does fitting rubber base pads 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 160 cm tall on a 40 cm wide base, tower B is 200 cm tall on a 40 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
20. 20.Which of these makes a building safer in earthquakes? (a) using a light roof (b) stacking loose bricks (c) using a heavy roof (d) leaving out steel bars
21. 21.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) stacking loose bricks (b) having a wide base (c) using a heavy roof (d) leaving out steel bars
23. 23.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) fitting rubber base pads (d) making brittle joints
24. 24.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) building tall and narrow (c) using flexible joints (d) having a wide base
25. 25.🔍 Which is the odd one out? (a) adding steel to concrete (b) adding cross bracing (c) using flexible joints (d) making brittle joints
26. 26.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.🏚️ 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 160 cm tall on a 40 cm base and tower C is 210 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
28. 28.🏚️ 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 50 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
29. 29.🔍 Which is the odd one out? (a) adding cross bracing (b) keeping a simple shape (c) raising heavy tanks high (d) adding steel to concrete
30. 30.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a microscope (d) a telescope
31. 31.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding steel to concrete (c) making brittle joints (d) using a heavy roof
33. 33.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 80 cm tall on a 10 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 C (c) tower A
35. 35.Which of these makes a building safer in earthquakes? (a) having a wide base (b) leaving out steel bars (c) stacking loose bricks (d) raising heavy tanks high
36. 36.🏚️ 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 20 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
37. 37.🔍 Which is the odd one out? (a) leaving out steel bars (b) raising heavy tanks high (c) using a heavy roof (d) adding cross bracing
38. 38.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
39. 39.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
40. 40.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True

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