Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 342 · 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.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
2. 2.🏚️ 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 20 cm tall on a 10 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 C (c) tower B
3. 3.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a telescope (c) a shake table (d) a microscope
4. 4.🏚️ 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
5. 5.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
7. 7.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding steel to concrete (c) keeping a simple shape (d) leaving out steel bars
9. 9.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.🏚️ 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 hardest to tip over? (a) tower A (b) tower C (c) tower B
11. 11.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 40 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
12. 12.🔍 Which is the odd one out? (a) building tall and narrow (b) stacking loose bricks (c) raising heavy tanks high (d) using a light roof
13. 13.🔍 Which is the odd one out? (a) adding cross bracing (b) keeping a simple shape (c) raising heavy tanks high (d) using flexible joints
14. 14.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) building tall and narrow (d) adding steel to concrete
15. 15.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 140 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
16. 16.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 20 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.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
18. 18.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) building tall and narrow (c) fitting rubber base pads (d) using a heavy roof
19. 19.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) keeping a simple shape (c) using a heavy roof (d) raising heavy tanks high
20. 20.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is lighter (d) it is harder to tip over
21. 21.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
22. 22.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) keeping a simple shape (c) using a heavy roof (d) adding cross bracing
24. 24.🏚️ 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 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
25. 25.🔍 Which is the odd one out? (a) adding steel to concrete (b) fitting rubber base pads (c) using a light roof (d) building tall and narrow
26. 26.🔍 Which is the odd one out? (a) building tall and narrow (b) raising heavy tanks high (c) having a wide base (d) stacking loose bricks
27. 27.🏚️ 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 30 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
28. 28.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using flexible joints (c) adding steel to concrete (d) stacking loose bricks
29. 29.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) having a wide base (d) leaving out steel bars
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
31. 31.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using flexible joints (c) making brittle joints (d) adding steel to concrete
32. 32.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
33. 33.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
34. 34.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
36. 36.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 120 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 C (b) tower B (c) tower A
37. 37.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.🏚️ 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 200 cm tall on a 40 cm base and tower C is 210 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
39. 39.🔍 Which is the odd one out? (a) using a light roof (b) stacking loose bricks (c) adding steel to concrete (d) fitting rubber base pads
40. 40.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False

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