Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 213 · 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 raising heavy tanks high 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 safer in earthquakes? (a) building tall and narrow (b) fitting rubber base pads (c) leaving out steel bars (d) using a heavy roof
3. 3.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
4. 4.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
5. 5.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) leaving out steel bars (d) using flexible joints
6. 6.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) using a heavy roof (b) raising heavy tanks high (c) stacking loose bricks (d) keeping a simple shape
8. 8.🔍 Which is the odd one out? (a) making brittle joints (b) adding cross bracing (c) using flexible joints (d) fitting rubber base pads
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 60 cm tall on a 10 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
10. 10.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 140 cm tall on a 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
11. 11.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) leaving out steel bars (c) using a heavy roof (d) having a wide base
12. 12.🔍 Which is the odd one out? (a) having a wide base (b) leaving out steel bars (c) stacking loose bricks (d) raising heavy tanks high
13. 13.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) making brittle joints (c) stacking loose bricks (d) adding cross bracing
14. 14.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a fridge (c) a shake table (d) a microscope
15. 15.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they are cheap (d) they bend, not break
17. 17.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
18. 18.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.🏚️ Why is a wide base safer? (a) it is lighter (b) it is colourful (c) it is taller (d) it is harder to tip over
21. 21.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
23. 23.🏚️ 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 60 cm tall on a 10 cm base and tower C is 30 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.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
25. 25.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) using a light roof (d) stacking loose bricks
26. 26.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
27. 27.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) keeping a simple shape (c) using flexible joints (d) raising heavy tanks high
28. 28.🔍 Which is the odd one out? (a) using flexible joints (b) using a light roof (c) raising heavy tanks high (d) adding steel to concrete
29. 29.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) keeping a simple shape (d) raising heavy tanks high
30. 30.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
31. 31.🏚️ 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 320 cm tall on a 40 cm base and tower C is 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
32. 32.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.🏚️ 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 10 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
34. 34.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) low down (c) hanging outside (d) on the very top
35. 35.🏚️ 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 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
36. 36.🏚️ 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 20 cm tall on a 20 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
37. 37.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
38. 38.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) adding cross bracing (b) having a wide base (c) leaving out steel bars (d) adding steel to concrete
40. 40.🏚️ 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 30 cm tall on a 10 cm base and tower C is 210 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A

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