Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 998 · 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 a heavy roof (b) leaving out steel bars (c) using a light roof (d) raising heavy tanks high
2. 2.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) building tall and narrow (c) having a wide base (d) keeping a simple shape
3. 3.🔍 Which is the odd one out? (a) stacking loose bricks (b) keeping a simple shape (c) making brittle joints (d) using a heavy roof
4. 4.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.🏚️ 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 90 cm tall on a 30 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
7. 7.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
9. 9.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a shake table (d) a telescope
10. 10.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
11. 11.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they look nice (d) they are cheap
12. 12.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) having a wide base (c) building tall and narrow (d) making brittle joints
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 40 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 A (b) tower B (c) tower C
15. 15.🔍 Which is the odd one out? (a) leaving out steel bars (b) fitting rubber base pads (c) adding cross bracing (d) adding steel to concrete
16. 16.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) adding cross bracing (c) making brittle joints (d) leaving out steel bars
17. 17.🏚️ 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 200 cm tall on a 40 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
18. 18.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🔍 Which is the odd one out? (a) raising heavy tanks high (b) stacking loose bricks (c) building tall and narrow (d) adding steel to concrete
20. 20.🏚️ 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 20 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 A (b) tower C (c) tower B
21. 21.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) building tall and narrow (c) leaving out steel bars (d) using a heavy roof
22. 22.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.🏚️ Three solid model towers are made of the same material. Tower A is 140 cm tall on a 20 cm wide base, tower B is 150 cm tall on a 30 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
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 240 cm tall on a 40 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
25. 25.🏚️ 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 120 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
26. 26.🏚️ 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 40 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 C (b) tower A (c) tower B
27. 27.🏚️ 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 30 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
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 120 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 C (b) tower A (c) tower B
29. 29.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
30. 30.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
31. 31.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) low down (d) on a thin pole
32. 32.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a heavy roof (c) adding steel to concrete (d) using a light roof
33. 33.🔍 Which is the odd one out? (a) having a wide base (b) using a light roof (c) fitting rubber base pads (d) raising heavy tanks high
34. 34.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) having a wide base (b) using a heavy roof (c) keeping a simple shape (d) fitting rubber base pads
36. 36.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
37. 37.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) adding steel to concrete (c) having a wide base (d) using flexible joints
38. 38.🏚️ 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 hardest to tip over? (a) tower B (b) tower A (c) tower C
39. 39.🔍 Which is the odd one out? (a) keeping a simple shape (b) using flexible joints (c) building tall and narrow (d) fitting rubber base pads
40. 40.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding steel to concrete (c) having a wide base (d) using a light roof

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