Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 947 · 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.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
2. 2.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) adding steel to concrete (d) leaving out steel bars
5. 5.🏚️ 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 60 cm tall on a 10 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
6. 6.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
7. 7.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
8. 8.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.🏚️ 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 240 cm tall on a 40 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
10. 10.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding steel to concrete (c) fitting rubber base pads (d) raising heavy tanks high
12. 12.🏚️ Why is a wide base safer? (a) it is taller (b) it is lighter (c) it is colourful (d) it is harder to tip over
13. 13.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) hanging outside (c) on the very top (d) on a thin pole
14. 14.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a heavy roof (c) leaving out steel bars (d) keeping a simple shape
15. 15.🔍 Which is the odd one out? (a) using flexible joints (b) adding steel to concrete (c) leaving out steel bars (d) having a wide base
16. 16.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
17. 17.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they bend, not break (c) they stop shaking (d) they are cheap
18. 18.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
19. 19.🏚️ 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 60 cm tall on a 20 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
20. 20.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) adding cross bracing (c) stacking loose bricks (d) keeping a simple shape
21. 21.🏚️ 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 20 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
22. 22.🔍 Which is the odd one out? (a) having a wide base (b) making brittle joints (c) using a heavy roof (d) stacking loose bricks
23. 23.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a light roof (c) raising heavy tanks high (d) making brittle joints
24. 24.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a microscope (c) a fridge (d) a telescope
25. 25.🏚️ 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 60 cm tall on a 10 cm base and tower C is 140 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
26. 26.🔍 Which is the odd one out? (a) using a light roof (b) making brittle joints (c) fitting rubber base pads (d) having a wide base
27. 27.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
28. 28.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a light roof (c) building tall and narrow (d) adding steel to concrete
29. 29.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) using a heavy roof (c) making brittle joints (d) building tall and narrow
30. 30.🔍 Which is the odd one out? (a) raising heavy tanks high (b) building tall and narrow (c) adding cross bracing (d) leaving out steel bars
31. 31.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
32. 32.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.🏚️ 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 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
34. 34.🔍 Which is the odd one out? (a) raising heavy tanks high (b) keeping a simple shape (c) using a heavy roof (d) making brittle joints
35. 35.🏚️ 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 120 cm tall on a 40 cm base and tower C is 40 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
36. 36.🏚️ 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 70 cm tall on a 10 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
37. 37.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
38. 38.🏚️ 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 60 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
39. 39.🔍 Which is the odd one out? (a) adding cross bracing (b) adding steel to concrete (c) building tall and narrow (d) keeping a simple shape
40. 40.🏚️ 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 60 cm tall on a 10 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B

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