Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 369 · 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 fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.🏚️ 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 60 cm tall on a 20 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
3. 3.🏚️ 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
4. 4.🏚️ 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 20 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
5. 5.🔍 Which is the odd one out? (a) keeping a simple shape (b) fitting rubber base pads (c) adding steel to concrete (d) stacking loose bricks
6. 6.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 80 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 C (b) tower B (c) tower A
8. 8.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) raising heavy tanks high (c) building tall and narrow (d) leaving out steel bars
10. 10.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
11. 11.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on the very top (c) on a thin pole (d) hanging outside
12. 12.🏚️ 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 120 cm tall on a 30 cm base and tower C is 280 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
13. 13.🏚️ 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 80 cm tall on a 20 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
14. 14.🏚️ 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 100 cm tall on a 20 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 B (c) tower C
15. 15.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.🏚️ 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 180 cm tall on a 30 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
17. 17.🔍 Which is the odd one out? (a) adding cross bracing (b) using a heavy roof (c) adding steel to concrete (d) using a light roof
18. 18.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) adding steel to concrete (d) using a heavy roof
19. 19.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) raising heavy tanks high (c) leaving out steel bars (d) stacking loose bricks
20. 20.🔍 Which is the odd one out? (a) stacking loose bricks (b) fitting rubber base pads (c) raising heavy tanks high (d) making brittle joints
21. 21.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) making brittle joints (c) leaving out steel bars (d) fitting rubber base pads
23. 23.🔍 Which is the odd one out? (a) having a wide base (b) building tall and narrow (c) using flexible joints (d) keeping a simple shape
24. 24.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
25. 25.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
26. 26.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
27. 27.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they are cheap (d) they look nice
29. 29.🔍 Which is the odd one out? (a) using flexible joints (b) raising heavy tanks high (c) leaving out steel bars (d) stacking loose bricks
30. 30.🏚️ Does having a wide base 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 30 cm tall on a 30 cm wide base, tower B is 80 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
32. 32.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) adding steel to concrete (c) adding cross bracing (d) using flexible joints
33. 33.🏚️ 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 160 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 B (b) tower A (c) tower C
34. 34.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a microscope (d) a telescope
35. 35.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.🏚️ 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 60 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
37. 37.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
38. 38.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
39. 39.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C

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