PHYSICS - Astrophysics - Waves and the Earth (Earthquakes)

The video discusses how buildings can be designed to withstand earthquakes. It covers the importance of earthquake drills, the response of buildings to seismic waves, and the challenges faced by modern high-rise structures. Various earthquake-resistant features such as mass dampers, cross braces, and base isolators are explained. The video concludes with considerations for building foundations to enhance earthquake survival.

Why is it recommended to take cover under a sturdy table during an earthquake?

• To stay warm

• To prevent slipping

• To protect from falling objects

• To avoid being seen by others

What is a significant challenge for high-rise buildings during an earthquake?

• They are too heavy to move

• They are more likely to catch fire

• They flex more and may rain down glass

• They are harder to evacuate

What is the primary goal of modern earthquake-proof structures?

• To be the tallest in the area

• To be aesthetically pleasing

• To allow controlled movement and maintain integrity

• To prevent any movement

Which feature helps prevent water and gas leaks in earthquake-resistant buildings?

• Base isolators

• Flexible pipes

• Cross braces

• Mass damper

What is the function of a mass damper in earthquake-resistant buildings?

• To increase the building's weight

• To detect and counteract shaking

• To provide additional living space

• To enhance the building's appearance