Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 613 · 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.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
2. 2.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
3. 3.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) leaving out steel bars (c) raising heavy tanks high (d) adding cross bracing
4. 4.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they stop shaking (c) they are cheap (d) they look nice
7. 7.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) keeping a simple shape (c) stacking loose bricks (d) using a heavy roof
8. 8.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on the very top (c) low down (d) on a thin pole
9. 9.🔍 Which is the odd one out? (a) having a wide base (b) leaving out steel bars (c) using flexible joints (d) adding cross bracing
10. 10.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) keeping a simple shape (c) adding steel to concrete (d) building tall and narrow
11. 11.🏚️ 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 70 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
12. 12.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a fridge (c) a microscope (d) a telescope
13. 13.Which of these makes a building safer in earthquakes? (a) having a wide base (b) raising heavy tanks high (c) building tall and narrow (d) making brittle joints
14. 14.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding steel to concrete (c) adding cross bracing (d) keeping a simple shape
15. 15.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 cm wide base, tower B is 240 cm tall on a 40 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
16. 16.🏚️ 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 150 cm tall on a 30 cm base and tower C is 140 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
17. 17.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is colourful (c) it is taller (d) it is lighter
18. 18.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 160 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 C (c) tower B
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.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
21. 21.🏚️ 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 180 cm tall on a 30 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
22. 22.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.🔍 Which is the odd one out? (a) making brittle joints (b) raising heavy tanks high (c) leaving out steel bars (d) adding cross bracing
24. 24.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) adding cross bracing (b) using a light roof (c) having a wide base (d) using a heavy roof
26. 26.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
28. 28.🏚️ 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 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 A (b) tower B (c) tower C
29. 29.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
30. 30.🏚️ 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 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
31. 31.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
32. 32.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
33. 33.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) using a heavy roof (c) using flexible joints (d) fitting rubber base pads
34. 34.🔍 Which is the odd one out? (a) using a heavy roof (b) keeping a simple shape (c) stacking loose bricks (d) raising heavy tanks high
35. 35.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) fitting rubber base pads (b) keeping a simple shape (c) using flexible joints (d) stacking loose bricks
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.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
39. 39.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
40. 40.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

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