Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 838 · 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.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they look nice (d) they stop shaking
2. 2.🔍 Which is the odd one out? (a) having a wide base (b) using flexible joints (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 10 cm wide base, tower B is 20 cm tall on a 20 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
4. 4.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
5. 5.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) adding cross bracing (c) using flexible joints (d) using a light roof
6. 6.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) using flexible joints (d) raising heavy tanks high
7. 7.🔍 Which is the odd one out? (a) keeping a simple shape (b) having a wide base (c) stacking loose bricks (d) adding steel to concrete
8. 8.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a heavy roof (c) making brittle joints (d) having a wide base
9. 9.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) stacking loose bricks (c) keeping a simple shape (d) using flexible joints
10. 10.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a fridge (c) a microscope (d) a shake table
11. 11.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using flexible joints (c) using a light roof (d) using a heavy roof
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.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) low down (c) hanging outside (d) on the very top
14. 14.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using flexible joints (c) adding steel to concrete (d) raising heavy tanks high
15. 15.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.🔍 Which is the odd one out? (a) raising heavy tanks high (b) building tall and narrow (c) leaving out steel bars (d) using a light roof
18. 18.🔍 Which is the odd one out? (a) adding cross bracing (b) adding steel to concrete (c) using flexible joints (d) making brittle joints
19. 19.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
21. 21.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.🏚️ 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 120 cm tall on a 20 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 C (c) tower B
24. 24.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) using flexible joints (d) using a heavy roof
25. 25.🔍 Which is the odd one out? (a) using a heavy roof (b) stacking loose bricks (c) adding steel to concrete (d) leaving out steel bars
26. 26.🏚️ 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 120 cm tall on a 40 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
27. 27.🏚️ 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 40 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 C (c) tower B
28. 28.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) adding steel to concrete (d) making brittle joints
29. 29.🔍 Which is the odd one out? (a) having a wide base (b) building tall and narrow (c) adding steel to concrete (d) using flexible joints
30. 30.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) stacking loose bricks (c) leaving out steel bars (d) building tall and narrow
31. 31.Which of these makes a building safer in earthquakes? (a) using a light roof (b) raising heavy tanks high (c) leaving out steel bars (d) stacking loose bricks
32. 32.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is colourful (c) it is lighter (d) it is taller
33. 33.🔍 Which is the odd one out? (a) making brittle joints (b) raising heavy tanks high (c) using a heavy roof (d) adding cross bracing
34. 34.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
35. 35.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
37. 37.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) leaving out steel bars (c) adding cross bracing (d) having a wide base
38. 38.🏚️ 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 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 A (b) tower B (c) tower C
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 30 cm tall on a 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
40. 40.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes

Free engineering lessons, practice and worksheets at talentjr.in/engineering-for-kids