Guest
asked 3 years ago
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Sound is the disturbance of mechanical energy, and moves through matter as a wave. It is the properties of a sound wave that characterise sound namely frequency, wavelength, period, amplitude, and speed.
Light is electromagnetic radiation.
There are two main differences between sound and light waves. Firstly in speed, sound travels at about 1,100 feet per second, light waves travel at about 186,000 miles per second.
The second difference is that sound requires a solid, liquid or gaseous medium to travel but light can travel through empty space. The denser the medium, the greater the speed of sound whereas the opposite is true of light. Light travels around a third slower in water than in air, sound travels through all substances but light will not pass through anything that is opaque.
Light is electromagnetic radiation.
There are two main differences between sound and light waves. Firstly in speed, sound travels at about 1,100 feet per second, light waves travel at about 186,000 miles per second.
The second difference is that sound requires a solid, liquid or gaseous medium to travel but light can travel through empty space. The denser the medium, the greater the speed of sound whereas the opposite is true of light. Light travels around a third slower in water than in air, sound travels through all substances but light will not pass through anything that is opaque.
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Guest
answered 3 years ago
Adding to the first answer, I'm assuming you're asking about visible light? As the first answer referrs to visible light. There are other types of 'light' that we cannot see... Ultraviolet, Infared, radio waves, cosmic rays, microwaves, gamma rays, x-rays are all forms of light outside the visible spectrum. Higer frequency light will penetrate things that are opaque (radation). Lower freqency light will interact with molecular bonds to increace their energy... hence your food heats up in the mircrowave or you sunburn in the sun.
Guest
commented 3 years ago
Sound Light
Sound needs a medium to travel through Light can travel through vacuum
Sound travels a million times slower than light Light travels at 300 million m/s
Sound travels in a motion of waves Light travels in straight lines
In light, the denser the material the slower the speed of
In sound, the denser the material, light
the greater the speed of sound
Sound travels best in opaque objects Light does not travel through opaque objects
Sound needs a medium to travel through Light can travel through vacuum
Sound travels a million times slower than light Light travels at 300 million m/s
Sound travels in a motion of waves Light travels in straight lines
In light, the denser the material the slower the speed of
In sound, the denser the material, light
the greater the speed of sound
Sound travels best in opaque objects Light does not travel through opaque objects
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Guest
answered 8 months ago
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