Q:

What are the key differences between light and sound?

A:

Quick Answer

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.

  Know More

Full Answer

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.

Learn more about Optics & Waves

Related Questions

  • Q:

    Can light bend?

    A:

    Yes, light can bend through diffraction and refraction. Diffraction is when light bends around a corner or a small opening and fills the larger space beyond it. Refraction is the bending of light when it transitions through different mediums, such as light seen in the air and entering into water.

    Full Answer >
    Filed Under:
  • Q:

    How is light created?

    A:

    Light is created when electrons orbiting an atom become energized to move into a higher orbit, and then drop down to a lower orbit, releasing a small amount of energy in the process. This energy is called a photon, which is the fundamental particle of light.

    Full Answer >
    Filed Under:
  • Q:

    What is light energy?

    A:

    Light energy is a type of kinetic energy with the ability to form types of light people can see as well as invisible waves. Light is a form of electromagnetic radiation, and hot objects, such as light bulbs, the sun and lasers, emit it.

    Full Answer >
    Filed Under:
  • Q:

    How do you measure light?

    A:

    The wavelength of light is measured using a spectrometer, while the intensity of light is measured using a photometer. The speed of light is measured by measuring the time light takes to traverse a known distance and dividing distance by time.

    Full Answer >
    Filed Under:

Explore