Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 926 · 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) True (b) False
2. 2.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they bend, not break (d) they are cheap
3. 3.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) making brittle joints (c) adding steel to concrete (d) using a heavy roof
4. 4.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using flexible joints (c) fitting rubber base pads (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.🏚️ 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 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
7. 7.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) on a thin pole (c) hanging outside (d) low down
8. 8.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
9. 9.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) having a wide base (d) leaving out steel bars
10. 10.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
11. 11.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) raising heavy tanks high (c) using flexible joints (d) fitting rubber base pads
12. 12.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) building tall and narrow (d) using flexible joints
14. 14.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
15. 15.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a fridge (d) a telescope
16. 16.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) using a heavy roof (d) adding steel to concrete
17. 17.🔍 Which is the odd one out? (a) using flexible joints (b) keeping a simple shape (c) leaving out steel bars (d) having a wide base
18. 18.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 40 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
20. 20.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
21. 21.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) keeping a simple shape (c) building tall and narrow (d) adding steel to concrete
22. 22.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) using a light roof (d) stacking loose bricks
23. 23.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a light roof (c) building tall and narrow (d) adding cross bracing
24. 24.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
25. 25.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.🔍 Which is the odd one out? (a) leaving out steel bars (b) adding cross bracing (c) building tall and narrow (d) making brittle joints
28. 28.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.🏚️ 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 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 B (b) tower C (c) tower A
30. 30.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
31. 31.🏚️ 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 90 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 A (b) tower C (c) tower B
32. 32.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) using flexible joints (c) building tall and narrow (d) raising heavy tanks high
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 20 cm wide base, tower B is 100 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 A (b) tower B (c) tower C
34. 34.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) fitting rubber base pads (c) using a light roof (d) having a wide base
35. 35.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
36. 36.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
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.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
39. 39.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using a light roof (c) leaving out steel bars (d) using flexible joints
40. 40.🏚️ 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 120 cm tall on a 30 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C

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