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Electromagnetic Wave
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∙ 9y ago
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What do electromagnetic waves need to travel?
Electromagnetic waves don't need anything to travel. This kind of waves does not need a medium to move through, therefore they can even travel through outer space.
How are em waves different from mechanical waves?
mechanical waves need a medium to travel through, electromagnetic waves do not. Electromagnetic waves can travel through space, mechanical waves can not.:PElectromagnetic waves do not require a medium, but mechanical waves do.
What do you call energy that travels and spreads out as it goes?
Waves, as in water, or electromagnetic radiation. Even a beam spreads out, due to diffraction.
What would happen if you reduced the amplitude of a sound wave?
Because sound waves are displacements of molecules of the medium they travel through, reducing the amplitude would mean decreasing the displacement the molecules experience as the wave passes through. Even though sound waves are longitudinal (meaning the displacement is in the direction the wave travels in) and waves in water are transversal (the displacement is perpendicular to the wave's direction), an example can be found in water waves; reducing the amplitude in water waves would reduce the size/height of the waves. In the case of audible sound waves reducing the amplitude will decrease the volume of the sound.
Where do sound waves travel at their fastest?
Sound travel faster in solids than in liquids, and faster in liquids than in gases. Sound travels faster in water than in the air but in solids it travels about eight times faster. Sound travels at the fastest speed in steel. In solids it travel faster in a hot surface, the particles move faster if the solid is cold its slower the movement.
Travels in waves even through space?
Light
Does sound waves travel through ice or rock?
it travels through rock quickest even if they are both solids eking
What are 3 things that travel in waves even through space?
Radio, light, and sound.
What radiation travels in waves even through space?
Any electromagnetic wave can travel without a medium. These waves can range from a radio wave, to a light wave, all the way up to a gamma wave. look up the electro magnetic spectrum for full details.
What do electromagnetic waves need to travel?
Electromagnetic waves don't need anything to travel. This kind of waves does not need a medium to move through, therefore they can even travel through outer space.
Does empty space make sound travel fastest?
Sound waves need a medium (such as air, water, metal and other materials) to travel through. Sound waves travel by slightly displacing the atoms from their original position as it moves. With empty space (no atoms) the sound waves cannot travel at all. In general, sound travels slower in gasses, then faster in liquids, and even faster in solids. Each substance is different, though.
How do sound waves travel through media?
Sound waves travel through vibrations. If one particle starts vibrating it will pass on that movement to other particles that are close by. This means that sound travels quickly through solids as the particles are closely packed and readily pick up movement from their neighbours; it travels less quickly through liquids as the particles are close enough to pick up vibrations but not tightly packed like they are in solids; sound travels slowest through gases (weird, but true - even though we rely on gases to pass on the sounds we make in speech) because their particles are much further apart. If there are no particles - like in a vacuum such as you'd find in space - then sound can't travel at all!
How are em waves different from mechanical waves?
mechanical waves need a medium to travel through, electromagnetic waves do not. Electromagnetic waves can travel through space, mechanical waves can not.:PElectromagnetic waves do not require a medium, but mechanical waves do.
Can electromagnetic spectrum waves travel through space?
Yes! that's how light from the sun gets to the Earth. Electromagnetic do not require a medium to travel through, they can even travel through a complete vacuum.
What is vacuum of space?
Vacuum we mean that there is nothing in the space. But perfect vacuum is not possible even in space as there are some traces of hydrogen molecules. More over space itself is having some properties such as magnetic permeability and electric permittivity. So space is considered as a medium through which light could travel. But sound cannot travel as it needs material medium. Hence sound waves are called as mechanical waves where as light waves are named as electromagnetic waves.
Compare and contrast light and sound waves?
Comparison:Both light waves and sound waves are a method of energy transfer.Both types of waves change their speed when traveling through various media.Contrast:Light waves are electromagnetic waves, and do not require a medium (matter) in order to travel. Sound waves MUST have a medium in order to travelThe speed of a light wave is faster than the speed of a sound wave.Light waves are transverse waves. Sound waves are longitudinal waves.
Did waves carries energy?
most kinds of waves need something to travel through. Water waves, for example, travel along the surface of the water. A wave can even travel along a rope. Gases (such as air), liquids (such as water), and solids (such as rope) , all act as mediums. Waves that require a medium through which travel are called mechanical waves.Some waves do not require a medium to travel through. Light can travel and carry energy through empty space. Waves that can travel without a medium are called electromagnetic waves. :)
