Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 237 · 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.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a shake table (c) a microscope (d) a fridge
3. 3.🔍 Which is the odd one out? (a) raising heavy tanks high (b) stacking loose bricks (c) using a heavy roof (d) keeping a simple shape
4. 4.🔍 Which is the odd one out? (a) building tall and narrow (b) keeping a simple shape (c) having a wide base (d) using a light roof
5. 5.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) building tall and narrow (b) making brittle joints (c) adding steel to concrete (d) using a heavy roof
7. 7.🏚️ 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 40 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
8. 8.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) keeping a simple shape (d) making brittle joints
9. 9.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) keeping a simple shape (c) having a wide base (d) building tall and narrow
10. 10.🔍 Which is the odd one out? (a) fitting rubber base pads (b) building tall and narrow (c) using a heavy roof (d) making brittle joints
11. 11.🏚️ 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 90 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 B (b) tower C (c) tower A
12. 12.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) raising heavy tanks high (c) having a wide base (d) leaving out steel bars
13. 13.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
14. 14.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) raising heavy tanks high (c) leaving out steel bars (d) keeping a simple shape
16. 16.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is taller (d) it is colourful
18. 18.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) making brittle joints (c) fitting rubber base pads (d) stacking loose bricks
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
20. 20.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) low down (c) on a thin pole (d) on the very top
21. 21.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
22. 22.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
23. 23.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) adding steel to concrete (c) raising heavy tanks high (d) making brittle joints
24. 24.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) raising heavy tanks high (c) making brittle joints (d) adding cross bracing
26. 26.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using flexible joints (c) using a heavy roof (d) fitting rubber base pads
27. 27.🏚️ 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 120 cm tall on a 20 cm base and tower C is 240 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
28. 28.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) raising heavy tanks high (d) adding cross bracing
29. 29.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a light roof (c) using flexible joints (d) raising heavy tanks high
30. 30.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they stop shaking (d) they look nice
31. 31.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.🏚️ 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 80 cm tall on a 40 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
33. 33.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) having a wide base (b) using a light roof (c) using a heavy roof (d) using flexible joints
35. 35.🔍 Which is the odd one out? (a) having a wide base (b) using a heavy roof (c) raising heavy tanks high (d) making brittle joints
36. 36.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) fitting rubber base pads (c) keeping a simple shape (d) stacking loose bricks
37. 37.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.🏚️ 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 120 cm tall on a 40 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
39. 39.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using a light roof (c) making brittle joints (d) adding cross bracing
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 30 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 B (c) tower A

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