Q:

What are the key differences between light and sound?

A:

The most significant difference between light and sound is that light is a transverse wave while sound is a longitudinal wave. As a transverse wave, light is capable of traveling in a vacuum, which is how the light from the sun is able to reach the earth.

Sound waves, unlike light waves, can only travel through a solid, liquid, or gas, which is why space is quiet. Another key difference between light and sound is that light moves at a faster speed than sound. According to NASA, the speed of sound is approximately 300 meters per second. However, light travels at a far quicker speed of 300,000,000 meters per second.


Is this answer helpful?

Similar Questions

  • Q:

    How do we see light?

    A:

    The human eye sees light with the pupil and the retina. Located inside the retina are two types of special cells called photoreceptor cells. There are two varieties of photoreceptor cells known as cones and rods.

    Full Answer >
    Filed Under:
  • Q:

    What is a tritium light?

    A:

    A tritium light is a green, glowing light source that has been chemically created with radioactive hydrogen and phosphor. The tritium light is created by sealing tritium gas inside laser-sealed glass tubes coated with phosphor.

    Full Answer >
    Filed Under:
  • Q:

    What is ultraviolet light?

    A:

    Ultraviolet light is a part of the electromagnetic spectrum that humans cannot see. It is composed of shorter wave lengths than visible light and lies beyond the blue end of the visible spectrum.

    Full Answer >
    Filed Under:
  • Q:

    What is polarized light?

    A:

    Polarized light can be identified by light waves aligned parallel to one another. Light is polarized when it is reflected from a transparent material-like glass or when it is scattered by particles suspended in the atmosphere.

    Full Answer >
    Filed Under:

Explore