Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 70 · 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.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they look nice (c) they stop shaking (d) they are cheap
2. 2.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) adding cross bracing (b) raising heavy tanks high (c) making brittle joints (d) using a heavy roof
8. 8.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) making brittle joints (c) using a heavy roof (d) raising heavy tanks high
9. 9.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
11. 11.🏚️ 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 40 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 B (b) tower A (c) tower C
12. 12.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) stacking loose bricks (c) building tall and narrow (d) making brittle joints
13. 13.🔍 Which is the odd one out? (a) using flexible joints (b) fitting rubber base pads (c) adding steel to concrete (d) stacking loose bricks
14. 14.🔍 Which is the odd one out? (a) using a heavy roof (b) having a wide base (c) keeping a simple shape (d) adding cross bracing
15. 15.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding steel to concrete (c) using flexible joints (d) keeping a simple shape
17. 17.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) fitting rubber base pads (c) making brittle joints (d) using a light roof
18. 18.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 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 easiest to tip over? (a) tower B (b) tower A (c) tower C
19. 19.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is taller (c) it is colourful (d) it is lighter
20. 20.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.🔍 Which is the odd one out? (a) using a light roof (b) making brittle joints (c) fitting rubber base pads (d) using flexible joints
22. 22.🏚️ 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 20 cm tall on a 10 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
23. 23.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) leaving out steel bars (c) raising heavy tanks high (d) using a light roof
24. 24.🏚️ 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 120 cm tall on a 30 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
25. 25.🔍 Which is the odd one out? (a) using a heavy roof (b) using flexible joints (c) leaving out steel bars (d) stacking loose bricks
26. 26.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) leaving out steel bars (d) adding cross bracing
27. 27.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
28. 28.🏚️ 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 100 cm tall on a 20 cm base and tower C is 60 cm tall on a 10 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) raising heavy tanks high (c) leaving out steel bars (d) building tall and narrow
30. 30.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) adding cross bracing (d) building tall and narrow
32. 32.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
33. 33.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.🏚️ 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 160 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
35. 35.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
36. 36.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
37. 37.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
39. 39.🏚️ 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 80 cm tall on a 20 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
40. 40.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes

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