Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 245 · 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 less safe in earthquakes? (a) using a light roof (b) having a wide base (c) stacking loose bricks (d) adding steel to concrete
2. 2.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.🔍 Which is the odd one out? (a) building tall and narrow (b) having a wide base (c) adding cross bracing (d) keeping a simple shape
4. 4.🏚️ 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 60 cm tall on a 20 cm base and tower C is 280 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
5. 5.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) making brittle joints (c) stacking loose bricks (d) using a light roof
6. 6.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
7. 7.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) fitting rubber base pads (c) using a heavy roof (d) adding cross bracing
8. 8.🔍 Which is the odd one out? (a) leaving out steel bars (b) using flexible joints (c) building tall and narrow (d) stacking loose bricks
9. 9.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) leaving out steel bars (c) adding cross bracing (d) building tall and narrow
10. 10.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) using a heavy roof (d) using flexible joints
12. 12.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
13. 13.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) fitting rubber base pads (c) using a light roof (d) adding cross bracing
15. 15.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) adding steel to concrete (c) raising heavy tanks high (d) using flexible joints
16. 16.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🏚️ 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 100 cm tall on a 20 cm base and tower C is 140 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
20. 20.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a microscope (c) a shake table (d) a telescope
21. 21.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is harder to tip over (d) it is lighter
22. 22.🏚️ 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 20 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
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 30 cm tall on a 10 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
24. 24.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.🏚️ 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 20 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
26. 26.🏚️ 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 40 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 B (b) tower C (c) tower A
27. 27.True or false: raising heavy tanks high 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 100 cm tall on a 20 cm wide base, tower B is 280 cm tall on a 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
29. 29.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
30. 30.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding steel to concrete (c) stacking loose bricks (d) leaving out steel bars
32. 32.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) leaving out steel bars (c) fitting rubber base pads (d) making brittle joints
33. 33.🏚️ 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 60 cm tall on a 10 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
34. 34.🔍 Which is the odd one out? (a) using a heavy roof (b) keeping a simple shape (c) using a light roof (d) fitting rubber base pads
35. 35.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) keeping a simple shape (c) building tall and narrow (d) stacking loose bricks
36. 36.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
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.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
39. 39.🔍 Which is the odd one out? (a) keeping a simple shape (b) leaving out steel bars (c) adding cross bracing (d) adding steel to concrete
40. 40.🏚️ 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 280 cm tall on a 40 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 C (c) tower A

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