Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 677 · 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) using flexible joints (b) building tall and narrow (c) raising heavy tanks high (d) stacking loose bricks
2. 2.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) keeping a simple shape (b) using flexible joints (c) leaving out steel bars (d) adding steel to concrete
4. 4.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
6. 6.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
7. 7.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) adding steel to concrete (b) having a wide base (c) raising heavy tanks high (d) fitting rubber base pads
10. 10.Which of these makes a building safer in earthquakes? (a) having a wide base (b) using a heavy roof (c) leaving out steel bars (d) making brittle joints
11. 11.🔍 Which is the odd one out? (a) using flexible joints (b) adding steel to concrete (c) making brittle joints (d) using a light roof
12. 12.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using flexible joints (c) raising heavy tanks high (d) adding steel to concrete
13. 13.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) using a heavy roof (b) stacking loose bricks (c) raising heavy tanks high (d) keeping a simple shape
15. 15.🏚️ 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
16. 16.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using a light roof (c) stacking loose bricks (d) having a wide base
17. 17.🏚️ Does using flexible joints 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) using flexible joints (b) using a heavy roof (c) having a wide base (d) adding steel to concrete
19. 19.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
20. 20.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) keeping a simple shape (d) building tall and narrow
21. 21.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.🏚️ Does using a heavy roof 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) having a wide base (b) making brittle joints (c) building tall and narrow (d) raising heavy tanks high
24. 24.🏚️ 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 120 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
25. 25.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
26. 26.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) using a light roof (c) adding cross bracing (d) having a wide base
27. 27.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
28. 28.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) using a light roof (c) adding steel to concrete (d) adding cross bracing
29. 29.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a telescope (c) a fridge (d) a shake table
30. 30.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
32. 32.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they bend, not break (d) they are cheap
33. 33.🏚️ 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 40 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 20 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 C (c) tower B
35. 35.🏚️ 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 80 cm tall on a 20 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
36. 36.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
37. 37.🏚️ 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 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
38. 38.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
40. 40.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False

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