Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 55 · 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.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🔍 Which is the odd one out? (a) keeping a simple shape (b) adding steel to concrete (c) using a heavy roof (d) fitting rubber base pads
3. 3.🏚️ 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 120 cm tall on a 40 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
4. 4.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🔍 Which is the odd one out? (a) having a wide base (b) using flexible joints (c) leaving out steel bars (d) fitting rubber base pads
6. 6.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) raising heavy tanks high (c) making brittle joints (d) having a wide base
7. 7.🔍 Which is the odd one out? (a) building tall and narrow (b) having a wide base (c) fitting rubber base pads (d) adding steel to concrete
8. 8.🏚️ 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 60 cm tall on a 30 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
9. 9.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) using a heavy roof (c) building tall and narrow (d) raising heavy tanks high
10. 10.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) using flexible joints (c) adding steel to concrete (d) having a wide base
11. 11.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
13. 13.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) leaving out steel bars (c) keeping a simple shape (d) fitting rubber base pads
14. 14.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.🔍 Which is the odd one out? (a) making brittle joints (b) keeping a simple shape (c) raising heavy tanks high (d) leaving out steel bars
17. 17.🔍 Which is the odd one out? (a) raising heavy tanks high (b) making brittle joints (c) using flexible joints (d) using a heavy roof
18. 18.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
19. 19.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
20. 20.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a shake table (c) a microscope (d) a fridge
21. 21.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) adding steel to concrete (c) using a heavy roof (d) adding cross bracing
22. 22.🏚️ 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
23. 23.🏚️ 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 70 cm tall on a 10 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
24. 24.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
25. 25.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) using a light roof (d) leaving out steel bars
28. 28.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) hanging outside (c) on the very top (d) low down
30. 30.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
31. 31.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 10 cm wide base, tower B is 100 cm tall on a 20 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 B (c) tower C
32. 32.🔍 Which is the odd one out? (a) making brittle joints (b) using flexible joints (c) using a light roof (d) adding steel to concrete
33. 33.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) using a light roof (c) keeping a simple shape (d) having a wide base
35. 35.🏚️ 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 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
36. 36.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) fitting rubber base pads (c) using a light roof (d) stacking loose bricks
37. 37.🏚️ 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 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
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.🏚️ 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 100 cm tall on a 20 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
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 10 cm wide base, tower B is 200 cm tall on a 40 cm base and tower C is 40 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B

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