Exploring Seismic Waves and Earth's Structure

The video tutorial explores wave properties, including energy, velocity, and amplitude. It explains wave behaviors like reflection and refraction, and how these principles help us understand Earth's interior through seismic waves. The tutorial also covers the relationship between plate boundaries and earthquakes, and how wave velocities change across different Earth layers, providing insights into the planet's structure.

What happens to the velocity of a wave when it travels through a different medium?

• It remains constant.

• It increases.

• It decreases.

• It changes.

Tags

NGSS.HS-PS4-1

What is the term used for the highest point of a wave?

• Wavelength

• Amplitude

• Crest

• Trough

How is the amplitude of a wave related to its energy?

• Higher amplitude means lower energy.

• Higher amplitude means higher energy.

• Amplitude is not related to energy.

• Amplitude is inversely proportional to energy.

What are the areas called where the coils bunch up in a compressional wave?

• Rarefactions

• Crests

• Compressions

• Troughs

What happens to a wave when it hits a boundary and bounces off?

• Reflection

• Diffraction

• Absorption

• Refraction

What is the index of refraction for the vacuum of space?

• 1.5

• 1.3

• 1.0

• 2.0

What type of waves cannot travel through liquids?

• S-waves

• P-waves

• Longitudinal waves

• Surface waves

What is the term for the region where no direct P-waves are detected?

• Shadow zone

• Seismic gap

• Focus

• Epicenter

Where are deep earthquakes typically found?

• Divergent boundaries

• Transform boundaries

• Convergent boundaries

• Mid-ocean ridges

What is the main reason for the change in wave velocity as it moves through different layers of the Earth?

• Change in pressure

• Change in temperature

• Change in wave type

• Change in media

Tags

NGSS.HS-PS4-1