Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 167 · 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) raising heavy tanks high (b) using flexible joints (c) stacking loose bricks (d) leaving out steel bars
2. 2.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
3. 3.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a telescope (c) a fridge (d) a shake table
4. 4.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they look nice (c) they are cheap (d) they stop shaking
5. 5.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on the very top (c) on a thin pole (d) low down
6. 6.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.🔍 Which is the odd one out? (a) having a wide base (b) leaving out steel bars (c) building tall and narrow (d) stacking loose bricks
8. 8.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is lighter (d) it is harder to tip over
9. 9.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
10. 10.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) using a heavy roof (d) fitting rubber base pads
11. 11.🔍 Which is the odd one out? (a) raising heavy tanks high (b) stacking loose bricks (c) using a heavy roof (d) using flexible joints
12. 12.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
13. 13.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.🏚️ Does leaving out steel bars 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) having a wide base (b) stacking loose bricks (c) keeping a simple shape (d) using a light roof
16. 16.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) keeping a simple shape (d) stacking loose bricks
17. 17.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.🔍 Which is the odd one out? (a) adding steel to concrete (b) having a wide base (c) adding cross bracing (d) using a heavy roof
19. 19.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a light roof (c) adding steel to concrete (d) building tall and narrow
20. 20.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a light roof (c) adding steel to concrete (d) building tall and narrow
21. 21.🏚️ 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 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
22. 22.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 20 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 C (b) tower B (c) tower A
23. 23.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) adding steel to concrete (d) building tall and narrow
25. 25.🏚️ 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 200 cm tall on a 40 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
26. 26.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a heavy roof (c) adding steel to concrete (d) adding cross bracing
27. 27.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.True or false: fitting rubber base pads 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 40 cm tall on a 10 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 210 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 10 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 hardest to tip over? (a) tower A (b) tower B (c) tower C
31. 31.🔍 Which is the odd one out? (a) using a light roof (b) leaving out steel bars (c) adding cross bracing (d) keeping a simple shape
32. 32.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
33. 33.🏚️ 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 20 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 A (c) tower C
34. 34.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
35. 35.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) having a wide base (c) building tall and narrow (d) stacking loose bricks
37. 37.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
38. 38.🏚️ 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 30 cm tall on a 10 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
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 60 cm tall on a 30 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
40. 40.🏚️ 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 30 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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