Question

The electromagnetic spectrum does not contain

Radio waves and microwaves

Light waves

Sound waves

Gamma waves

Answer 1

light waves i think?

Answer 2

thats what i was thinking.

Answer 3

Sound and radio waves are totally different.

Sound waves are compression waves in that they oscillate in the direction of travel through a medium like gas (e.g., air). Radio waves are translational waves in that they oscillate perpendicular to the direction of travel in whater medium the wave is traveling in.

Sound waves travel at, duh, the speed of sound, which depends on a lot of things like temperature, density of the medium, and such. Depending on such factors, the speed of sound is about 500-600 mph in air at sea level. This works out to be about 880 feet per second at 600 mph.

Radio waves travel about 186,000 miles per second in air or vacuum, which is the speed of light because radio waves are simply light waves in an invisible section of the spectrum. This light speed equates to very roughly 900,000,000 feet per second, which is about 900,000 times faster than sound in air. This accounts for why you see lighteniing before you hear its thunder.

Finally, light waves are made up of vibrating bundles of energy called photons...this applies to radio waves, which are a form of light. Sound waves are made up of molecules of gas (e.g., air) moving back and forth. So radio and sound waves are made up of entirely different components. They will not interfere.

Let's make it clear, because I think you confusing a radar detector with a radar gun. A radar detector simply receives the radar pulse from a radar gun. It is a broad band receiver that accounts for variations in frequency (pitch) due to the moving platform the detector is sitting on (e.g., your car).

On the other hand, the radar gun is a transmitter/receiver (it does both). And the difference in the frequency of the transmitted radar pulse and the frequency of the received pulse is converted into the closure speed of the platform carrying the detector (e.g., your speeding car).

Handheld radar guns cannot accurately detect the speed of a platform that is going in a direction other than directly at or away from the gun. That results because they can only calculate closure rates along the vector between the gun and the speeding car. For example, the closure rate is zero no matter how fast a platform is going if it's going perpendicular to the vector between the gun and the platform.

More sophisticated guns (e.g., radars used to track aircraft) use sophisticated computer programs to calculate platform velocities no matter what direction they are going relative to the gun

Answer 4

ty for the looking up. but that doesnt answer my question sorry

Answer 5

lol

Answer 6

@JennaKnight_t(>.<t)
Are you a professor, that seems like a really long lecture topic.

@sunnyshores
Radio waves, microwaves, light waves, and gamma waves, all have an electromagnetic origin. To be part of the electromagnetic spectrum; waves must all travel at the speed of light (300,000,000 metres per second) in a vacuum. All waves in the electromagnetic spectrum are transverse wave.

Sound is a pressure wave as well as longitudinal wave.

Sources:
I taught myself physics.

More information:
https://en.wikipedia.org/wiki/Transverse_wave
https://en.wikipedia.org/wiki/P-wave

The table below demonstrates the electromagnetic spectrum. You may want to print this table out as a permanent summary.

Note the table isn't mine I just did a quick Google search for it.

Also note this is physics, not biology.

Answer 7

i had a feeling it was physics. and no shes not. shes 9

Answer 8

Sound waves are NOT part of the electromagnetic spectrum.

Answer 9

Well I hope you understand what I was talking about, if you need any clarifications just ask :-).

Answer 10

All waves in the electromagnetic spectrum travel at the speed of light.
Sound waves, however, don't.