Question

1. Light and sound and are not matter. Why?​

Answer 1

Answer:

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Explanation:

Light and sound are not regarded as forms of matter. ... The “particles” of light are called photons and have no mass. In contrast, matter is made up of particles that do have mass. Sound is a little different in that it is the propagation of a pressure wave through a medium of particles.

Answer 2

Answer:

Light and sound are not regarded as forms of matter. Light is another name for electromagnetic radiation. ... Sound is a little different in that it is the propagation of a pressure wave through a medium of particles. Since it is a wave, it is not considered a form of matter.

Explanation:

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