Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 757 · 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) making brittle joints (b) adding cross bracing (c) raising heavy tanks high (d) leaving out steel bars
2. 2.🔍 Which is the odd one out? (a) adding cross bracing (b) raising heavy tanks high (c) using a heavy roof (d) stacking loose bricks
3. 3.🏚️ 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 30 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
4. 4.🏚️ Three solid model towers are made of the same material. Tower A is 50 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
5. 5.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a heavy roof (c) adding cross bracing (d) using flexible joints
7. 7.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
9. 9.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) making brittle joints (c) adding steel to concrete (d) leaving out steel bars
10. 10.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🔍 Which is the odd one out? (a) having a wide base (b) using flexible joints (c) adding cross bracing (d) making brittle joints
13. 13.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is colourful (d) it is harder to tip over
14. 14.🏚️ 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 120 cm tall on a 40 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
15. 15.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) leaving out steel bars (d) using flexible joints
16. 16.🏚️ 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 50 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
17. 17.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) having a wide base (c) using a heavy roof (d) making brittle joints
18. 18.🏚️ Three solid model towers are made of the same material. Tower A is 140 cm tall on a 20 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 150 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.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a fridge (d) a shake table
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 60 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 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
22. 22.🏚️ 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 180 cm tall on a 30 cm base and tower C is 160 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.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
24. 24.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a light roof (c) stacking loose bricks (d) using flexible joints
26. 26.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) stacking loose bricks (c) using a light roof (d) building tall and narrow
27. 27.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.🏚️ 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 60 cm tall on a 30 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
29. 29.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
30. 30.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they stop shaking (c) they bend, not break (d) they look nice
31. 31.🏚️ 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 80 cm tall on a 20 cm base and tower C is 40 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 safer in earthquakes? (a) leaving out steel bars (b) stacking loose bricks (c) fitting rubber base pads (d) building tall and narrow
33. 33.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) building tall and narrow (b) making brittle joints (c) leaving out steel bars (d) keeping a simple shape
35. 35.🏚️ Three solid model towers are made of the same material. Tower A is 140 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 10 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
36. 36.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) using a heavy roof (d) adding cross bracing
37. 37.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) keeping a simple shape (c) fitting rubber base pads (d) building tall and narrow
38. 38.🏚️ 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 30 cm tall on a 10 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 50 cm tall on a 10 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
40. 40.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False

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