Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 724 · 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.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) using a heavy roof (c) leaving out steel bars (d) building tall and narrow
2. 2.🔍 Which is the odd one out? (a) stacking loose bricks (b) leaving out steel bars (c) using flexible joints (d) building tall and narrow
3. 3.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) raising heavy tanks high (c) using flexible joints (d) fitting rubber base pads
4. 4.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) adding steel to concrete (d) making brittle joints
5. 5.🏚️ 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 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
6. 6.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
7. 7.🏚️ 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 120 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 A (b) tower B (c) tower C
8. 8.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
11. 11.🏚️ 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 240 cm tall on a 40 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
12. 12.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
13. 13.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using flexible joints (c) raising heavy tanks high (d) stacking loose bricks
14. 14.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
15. 15.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) using a heavy roof (d) keeping a simple shape
16. 16.🏚️ Why is a wide base safer? (a) it is colourful (b) it is lighter (c) it is taller (d) it is harder to tip over
17. 17.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a heavy roof (c) adding cross bracing (d) fitting rubber base pads
20. 20.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they look nice (d) they are cheap
21. 21.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) using a heavy roof (d) having a wide base
22. 22.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
23. 23.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a shake table (d) a telescope
24. 24.🏚️ 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 20 cm tall on a 10 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
25. 25.🏚️ 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 120 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
26. 26.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.🏚️ 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 50 cm tall on a 10 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 C (c) tower A
28. 28.🏚️ 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 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
29. 29.🔍 Which is the odd one out? (a) keeping a simple shape (b) building tall and narrow (c) using a heavy roof (d) leaving out steel bars
30. 30.True or false: using a heavy roof 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 40 cm tall on a 10 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.🏚️ 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 20 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
33. 33.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) using flexible joints (b) using a light roof (c) keeping a simple shape (d) stacking loose bricks
35. 35.🔍 Which is the odd one out? (a) having a wide base (b) using a heavy roof (c) raising heavy tanks high (d) building tall and narrow
36. 36.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a light roof (c) using a heavy roof (d) making brittle joints
37. 37.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
38. 38.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.🏚️ 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 30 cm tall on a 10 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
40. 40.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using flexible joints (c) keeping a simple shape (d) building tall and narrow

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