Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 374 · 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.🏚️ Why is a wide base safer? (a) it is taller (b) it is lighter (c) it is colourful (d) it is harder to tip over
2. 2.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
3. 3.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) adding steel to concrete (d) stacking loose bricks
4. 4.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
5. 5.🏚️ 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 120 cm tall on a 30 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
6. 6.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) building tall and narrow (c) using a light roof (d) adding cross bracing
7. 7.🔍 Which is the odd one out? (a) adding cross bracing (b) using a heavy roof (c) adding steel to concrete (d) having a wide base
8. 8.🏚️ Does using flexible joints 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 safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) stacking loose bricks (d) having a wide base
10. 10.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) adding cross bracing (c) making brittle joints (d) using flexible joints
11. 11.🏚️ Does fitting rubber base pads 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 less safe in earthquakes? (a) keeping a simple shape (b) fitting rubber base pads (c) adding steel to concrete (d) stacking loose bricks
13. 13.🏚️ 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 120 cm tall on a 40 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
14. 14.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) using a heavy roof (d) keeping a simple shape
15. 15.🔍 Which is the odd one out? (a) using a light roof (b) stacking loose bricks (c) fitting rubber base pads (d) adding cross bracing
16. 16.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they stop shaking (c) they look nice (d) they bend, not break
17. 17.🔍 Which is the odd one out? (a) adding cross bracing (b) building tall and narrow (c) leaving out steel bars (d) making brittle joints
18. 18.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding cross bracing (c) using flexible joints (d) using a heavy roof
19. 19.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) having a wide base (c) leaving out steel bars (d) using flexible joints
20. 20.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) fitting rubber base pads (c) stacking loose bricks (d) leaving out steel bars
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 40 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 B (b) tower C (c) tower A
22. 22.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
23. 23.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) stacking loose bricks (c) using a heavy roof (d) using flexible joints
24. 24.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a light roof (c) keeping a simple shape (d) raising heavy tanks high
25. 25.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) leaving out steel bars (c) stacking loose bricks (d) using a light roof
26. 26.🏚️ 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 20 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 B (c) tower A
27. 27.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.🔍 Which is the odd one out? (a) using a heavy roof (b) leaving out steel bars (c) stacking loose bricks (d) using flexible joints
29. 29.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.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
31. 31.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 160 cm tall on a 40 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
32. 32.🏚️ 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 90 cm tall on a 30 cm base and tower C is 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
33. 33.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a telescope (c) a shake table (d) a fridge
34. 34.🏚️ 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 30 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
35. 35.🏚️ Does making brittle joints 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 180 cm tall on a 30 cm wide base, tower B is 100 cm tall on a 20 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
37. 37.🏚️ 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 80 cm tall on a 20 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
38. 38.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
39. 39.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
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 180 cm tall on a 30 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 A (c) tower C

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