Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 25 · 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 a heavy roof makes a building safer in earthquakes. (a) False (b) True
2. 2.🏚️ Does adding steel to concrete 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 less safe in earthquakes? (a) using a light roof (b) adding steel to concrete (c) using a heavy roof (d) having a wide base
4. 4.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) having a wide base (c) using flexible joints (d) keeping a simple shape
5. 5.🏚️ Why is a wide base safer? (a) it is taller (b) it is harder to tip over (c) it is colourful (d) it is lighter
6. 6.🔍 Which is the odd one out? (a) leaving out steel bars (b) using flexible joints (c) having a wide base (d) adding cross bracing
7. 7.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) having a wide base (c) leaving out steel bars (d) building tall and narrow
8. 8.🔍 Which is the odd one out? (a) building tall and narrow (b) keeping a simple shape (c) adding steel to concrete (d) having a wide base
9. 9.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on the very top (c) on a thin pole (d) hanging outside
10. 10.🏚️ 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 80 cm tall on a 20 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
11. 11.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
12. 12.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
13. 13.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
15. 15.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) fitting rubber base pads (c) leaving out steel bars (d) using a heavy roof
16. 16.🏚️ 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 10 cm tall on a 10 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
17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 40 cm wide base, tower B is 20 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
18. 18.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
19. 19.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) using a light roof (c) adding steel to concrete (d) adding cross bracing
20. 20.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) fitting rubber base pads (c) building tall and narrow (d) using a light roof
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 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 easiest to tip over? (a) tower C (b) tower A (c) tower B
22. 22.🏚️ 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 60 cm tall on a 20 cm base and tower C is 280 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
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 80 cm tall on a 10 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
24. 24.🔍 Which is the odd one out? (a) using a light roof (b) raising heavy tanks high (c) leaving out steel bars (d) using a heavy roof
25. 25.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using flexible joints (c) adding cross bracing (d) making brittle joints
26. 26.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
27. 27.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a microscope (c) a shake table (d) a telescope
28. 28.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.🔍 Which is the odd one out? (a) using a light roof (b) using flexible joints (c) raising heavy tanks high (d) keeping a simple shape
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 20 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 A (b) tower B (c) tower C
31. 31.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) making brittle joints (d) fitting rubber base pads
32. 32.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they bend, not break (d) they stop shaking
33. 33.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) fitting rubber base pads (c) having a wide base (d) adding cross bracing
34. 34.🔍 Which is the odd one out? (a) making brittle joints (b) adding cross bracing (c) leaving out steel bars (d) building tall and narrow
35. 35.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
36. 36.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using flexible joints (c) stacking loose bricks (d) raising heavy tanks high
37. 37.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
39. 39.🔍 Which is the odd one out? (a) adding steel to concrete (b) using a heavy roof (c) making brittle joints (d) leaving out steel bars
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 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B

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