Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 635 · 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.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) fitting rubber base pads (b) having a wide base (c) keeping a simple shape (d) stacking loose bricks
3. 3.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) using flexible joints (c) adding steel to concrete (d) fitting rubber base pads
4. 4.🏚️ 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 80 cm tall on a 40 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
5. 5.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a microscope (d) a telescope
6. 6.🏚️ 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 160 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 B (b) tower C (c) tower A
7. 7.🏚️ 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 210 cm tall on a 30 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
8. 8.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.🏚️ 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 150 cm tall on a 30 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
12. 12.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
13. 13.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) leaving out steel bars (c) adding steel to concrete (d) building tall and narrow
14. 14.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) making brittle joints (c) using a light roof (d) adding cross bracing
16. 16.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a heavy roof (c) having a wide base (d) using a light roof
19. 19.🏚️ 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 140 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
20. 20.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 90 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 B (c) tower C
22. 22.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they bend, not break (d) they stop shaking
23. 23.🏚️ 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 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
24. 24.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is lighter (d) it is taller
25. 25.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) using a light roof (c) fitting rubber base pads (d) having a wide base
26. 26.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) having a wide base (d) leaving out steel bars
27. 27.🔍 Which is the odd one out? (a) having a wide base (b) using a light roof (c) keeping a simple shape (d) building tall and narrow
28. 28.🏚️ Three solid model towers are made of the same material. Tower A is 320 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 30 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 B (c) tower C
29. 29.Which of these makes a building safer in earthquakes? (a) using a light roof (b) using a heavy roof (c) stacking loose bricks (d) raising heavy tanks high
30. 30.🏚️ 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 90 cm tall on a 30 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
31. 31.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding steel to concrete (c) adding cross bracing (d) keeping a simple shape
32. 32.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
33. 33.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
34. 34.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) adding cross bracing (c) having a wide base (d) leaving out steel bars
35. 35.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) making brittle joints (c) using flexible joints (d) building tall and narrow
36. 36.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
37. 37.🏚️ 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 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
38. 38.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
39. 39.🏚️ 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 100 cm tall on a 20 cm base and tower C is 160 cm tall on a 40 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 280 cm tall on a 40 cm wide base, tower B is 40 cm tall on a 10 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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