Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 684 · 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 adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) fitting rubber base pads (c) raising heavy tanks high (d) using flexible joints
3. 3.🏚️ 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 80 cm tall on a 40 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
4. 4.🏚️ 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 180 cm tall on a 30 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
5. 5.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) keeping a simple shape (c) leaving out steel bars (d) using flexible joints
6. 6.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) keeping a simple shape (d) stacking loose bricks
8. 8.🔍 Which is the odd one out? (a) using a heavy roof (b) adding steel to concrete (c) adding cross bracing (d) keeping a simple shape
9. 9.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) raising heavy tanks high (b) having a wide base (c) stacking loose bricks (d) making brittle joints
11. 11.🏚️ Why is a wide base safer? (a) it is taller (b) it is lighter (c) it is harder to tip over (d) it is colourful
12. 12.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
14. 14.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) keeping a simple shape (c) building tall and narrow (d) adding steel to concrete
15. 15.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they stop shaking (d) they bend, not break
17. 17.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a shake table (d) a telescope
18. 18.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
19. 19.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) on a thin pole (c) low down (d) hanging outside
20. 20.🔍 Which is the odd one out? (a) adding steel to concrete (b) leaving out steel bars (c) using a light roof (d) adding cross bracing
21. 21.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
24. 24.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) raising heavy tanks high (c) keeping a simple shape (d) making brittle joints
25. 25.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
26. 26.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) using a heavy roof (b) making brittle joints (c) raising heavy tanks high (d) adding cross bracing
29. 29.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) adding steel to concrete (c) adding cross bracing (d) using a heavy roof
30. 30.🏚️ 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 150 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 A (b) tower C (c) tower B
31. 31.🏚️ 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 150 cm tall on a 30 cm base and tower C is 140 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
32. 32.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 70 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 280 cm tall on a 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
34. 34.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) building tall and narrow (b) adding steel to concrete (c) stacking loose bricks (d) using a heavy roof
36. 36.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
37. 37.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) stacking loose bricks (d) fitting rubber base pads
38. 38.🔍 Which is the odd one out? (a) building tall and narrow (b) leaving out steel bars (c) making brittle joints (d) fitting rubber base pads
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 160 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
40. 40.🏚️ 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 100 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 C (b) tower A (c) tower B

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