Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 90 · 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 150 cm tall on a 30 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 easiest to tip over? (a) tower C (b) tower B (c) tower A
2. 2.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.🏚️ 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 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
4. 4.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) on a thin pole (c) hanging outside (d) low down
6. 6.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) adding cross bracing (c) making brittle joints (d) leaving out steel bars
7. 7.🏚️ 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 40 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
8. 8.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) using a heavy roof
9. 9.🏚️ Why is a wide base safer? (a) it is colourful (b) it is lighter (c) it is harder to tip over (d) it is taller
10. 10.🏚️ Does building tall and narrow 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 less safe in earthquakes? (a) having a wide base (b) fitting rubber base pads (c) building tall and narrow (d) adding steel to concrete
12. 12.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🔍 Which is the odd one out? (a) leaving out steel bars (b) having a wide base (c) fitting rubber base pads (d) adding cross bracing
14. 14.🔍 Which is the odd one out? (a) making brittle joints (b) using a light roof (c) stacking loose bricks (d) using a heavy roof
15. 15.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
16. 16.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
17. 17.🏚️ 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 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
18. 18.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using flexible joints (c) using a light roof (d) making brittle joints
19. 19.🏚️ 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 210 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
20. 20.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) fitting rubber base pads (d) raising heavy tanks high
21. 21.🏚️ 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 80 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 B (b) tower C (c) tower A
22. 22.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a telescope (c) a microscope (d) a shake table
23. 23.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using a light roof (c) adding cross bracing (d) leaving out steel bars
24. 24.🏚️ 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 60 cm tall on a 30 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
25. 25.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
26. 26.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding steel to concrete (c) using flexible joints (d) building tall and narrow
28. 28.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
29. 29.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) making brittle joints (d) adding steel to concrete
31. 31.🏚️ 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 320 cm tall on a 40 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
32. 32.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) stacking loose bricks
33. 33.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
35. 35.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) adding steel to concrete (c) building tall and narrow (d) using a heavy roof
38. 38.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
39. 39.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
40. 40.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using flexible joints (c) raising heavy tanks high (d) using a heavy roof

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