Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 28 · 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.🔍 Which is the odd one out? (a) adding cross bracing (b) keeping a simple shape (c) adding steel to concrete (d) using a heavy roof
2. 2.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) stacking loose bricks (d) fitting rubber base pads
3. 3.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
4. 4.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a light roof (c) using a heavy roof (d) raising heavy tanks high
5. 5.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they stop shaking (d) they bend, not break
6. 6.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) on a thin pole (d) low down
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.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a fridge (c) a microscope (d) a telescope
9. 9.🏚️ 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 40 cm tall on a 40 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 C (c) tower A
10. 10.🔍 Which is the odd one out? (a) adding cross bracing (b) using a heavy roof (c) building tall and narrow (d) stacking loose bricks
11. 11.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) using flexible joints (c) adding steel to concrete (d) fitting rubber base pads
12. 12.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
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.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) making brittle joints (c) adding cross bracing (d) using flexible joints
15. 15.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a light roof (c) keeping a simple shape (d) leaving out steel bars
17. 17.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
18. 18.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.Which of these makes a building safer in earthquakes? (a) having a wide base (b) leaving out steel bars (c) making brittle joints (d) building tall and narrow
20. 20.🏚️ 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 120 cm tall on a 40 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 B (c) tower A
21. 21.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
22. 22.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) keeping a simple shape (c) using a heavy roof (d) adding cross bracing
23. 23.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
25. 25.🏚️ Three solid model towers are made of the same material. Tower A is 210 cm tall on a 30 cm wide base, tower B is 150 cm tall on a 30 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
26. 26.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
27. 27.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) using flexible joints (c) having a wide base (d) keeping a simple shape
28. 28.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a light roof (c) leaving out steel bars (d) stacking loose bricks
29. 29.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.🔍 Which is the odd one out? (a) having a wide base (b) fitting rubber base pads (c) adding cross bracing (d) leaving out steel bars
31. 31.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) using flexible joints (d) making brittle joints
32. 32.🔍 Which is the odd one out? (a) using a light roof (b) keeping a simple shape (c) having a wide base (d) raising heavy tanks high
33. 33.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 210 cm tall on a 30 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
35. 35.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) having a wide base (c) adding steel to concrete (d) using a light roof
37. 37.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
39. 39.🏚️ 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 40 cm tall on a 20 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
40. 40.🏚️ 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 160 cm tall on a 40 cm base and tower C is 100 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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