Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 686 · 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.🏚️ 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 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
2. 2.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) having a wide base (c) keeping a simple shape (d) adding steel to concrete
3. 3.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) adding steel to concrete (d) raising heavy tanks high
5. 5.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
6. 6.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
7. 7.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is harder to tip over (d) it is lighter
8. 8.🏚️ 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 120 cm tall on a 30 cm base and tower C is 280 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
9. 9.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) hanging outside (c) on the very top (d) on a thin pole
10. 10.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
11. 11.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they are cheap (d) they bend, not break
12. 12.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.🔍 Which is the odd one out? (a) using a heavy roof (b) stacking loose bricks (c) having a wide base (d) raising heavy tanks high
15. 15.🏚️ 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 120 cm tall on a 40 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
16. 16.🔍 Which is the odd one out? (a) keeping a simple shape (b) making brittle joints (c) stacking loose bricks (d) using a heavy roof
17. 17.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) stacking loose bricks (d) adding cross bracing
18. 18.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) raising heavy tanks high (c) using flexible joints (d) using a light roof
19. 19.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a telescope (c) a fridge (d) a shake table
20. 20.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.🔍 Which is the odd one out? (a) having a wide base (b) using a light roof (c) keeping a simple shape (d) using a heavy roof
22. 22.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a light roof (c) fitting rubber base pads (d) keeping a simple shape
23. 23.🏚️ 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 40 cm tall on a 20 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
24. 24.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 210 cm tall on a 30 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
26. 26.🏚️ 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 40 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
27. 27.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using flexible joints (c) using a heavy roof (d) making brittle joints
28. 28.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.🏚️ Does using a heavy roof 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) raising heavy tanks high (b) stacking loose bricks (c) keeping a simple shape (d) leaving out steel bars
31. 31.🏚️ 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 120 cm tall on a 30 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
32. 32.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
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 20 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
35. 35.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
37. 37.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using a heavy roof (c) using flexible joints (d) having a wide base
38. 38.🔍 Which is the odd one out? (a) leaving out steel bars (b) fitting rubber base pads (c) building tall and narrow (d) making brittle joints
39. 39.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
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 200 cm tall on a 40 cm base and tower C is 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A

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