5. Are seismic waves (waves throughout the Earth's crusty mechanical waves? How about sound? Light (electromagnetic waves)? In each case , if the wave is a mechanical wave, identify the medium.

Question

5. Are seismic waves (waves throughout the Earth's crusty mechanical waves? How about sound? Light (electromagnetic waves)? In each case , if the wave is a mechanical wave, identify the medium.

Answer 1

Yes, seismic waves are mechanical waves. They propagate through the Earth's crust, mantle, and core by causing particles within these layers to vibrate. The **medium** for seismic waves is the Earth itself (rock, magma, etc.).Sound is also a mechanical wave. It requires a medium to travel through, as it propagates by causing vibrations in the particles of the medium. The medium for sound can be various substances like air, water, solids, etc.Light, however, is *not* a mechanical wave. Light is an electromagnetic wave. Electromagnetic waves, unlike mechanical waves, do *not* require a medium to propagate. They can travel through the vacuum of space. Therefore, there is no medium for light waves.

Question

5. Are seismic waves (waves throughout the Earth's crusty mechanical waves? How about sound? Light (electromagnetic waves)? In each case , if the wave is a mechanical wave, identify the medium.

Solution

Answer