Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 593 · 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.🏚️ 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 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
2. 2.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) adding steel to concrete (c) leaving out steel bars (d) making brittle joints
3. 3.🏚️ 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 90 cm tall on a 30 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
4. 4.🏚️ 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 240 cm tall on a 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
5. 5.🏚️ 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 240 cm tall on a 40 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
6. 6.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) having a wide base (c) raising heavy tanks high (d) making brittle joints
8. 8.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
10. 10.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) on a thin pole (c) hanging outside (d) low down
12. 12.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they stop shaking (d) they bend, not break
14. 14.🔍 Which is the odd one out? (a) stacking loose bricks (b) using flexible joints (c) using a heavy roof (d) leaving out steel bars
15. 15.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a microscope (c) a shake table (d) a telescope
16. 16.🏚️ 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 240 cm tall on a 40 cm base and tower C is 280 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) using a light roof (b) keeping a simple shape (c) adding cross bracing (d) building tall and narrow
18. 18.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a heavy roof (c) building tall and narrow (d) leaving out steel bars
20. 20.🏚️ 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 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
21. 21.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) fitting rubber base pads (c) stacking loose bricks (d) using flexible joints
22. 22.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 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 A (b) tower C (c) tower B
23. 23.🏚️ Why is a wide base safer? (a) it is taller (b) it is lighter (c) it is colourful (d) it is harder to tip over
24. 24.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) adding steel to concrete (c) fitting rubber base pads (d) leaving out steel bars
25. 25.🔍 Which is the odd one out? (a) leaving out steel bars (b) adding cross bracing (c) adding steel to concrete (d) using flexible joints
26. 26.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
28. 28.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
29. 29.🏚️ 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 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
30. 30.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
31. 31.🏚️ 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 40 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
32. 32.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) having a wide base (c) keeping a simple shape (d) fitting rubber base pads
33. 33.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) adding cross bracing (c) making brittle joints (d) having a wide base
34. 34.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) using flexible joints (c) fitting rubber base pads (d) adding cross bracing
35. 35.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
36. 36.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a light roof (c) raising heavy tanks high (d) fitting rubber base pads
38. 38.🏚️ 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 70 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 C (c) tower A
39. 39.🏚️ 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 240 cm tall on a 40 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
40. 40.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) using a light roof (d) building tall and narrow

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