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Which requires a physical medium in which to travel light sound or both?
Heat requires a medium. Sound requires a medium. Because there's pretty much no physical matter in outer space, there's no heat or sound. Astronauts can experience heat after light energy converts to heat on their suits, and they can experience sound if they touch something (and the vibrations vibrate their ears as sound). Oh! And they get sound from radio waves (which are light!) that convert to sound. Pure energy (like light, and gravity i guess) is the only thing that doesn't require a physical medium. I guess once an object is propelled through space, it continues moving without a medium too. Fish need water to swim, monkeys need branches to swing, worms need dirt to wiggle forward. That's the best answer i can give. Have a good day or something!
what vcan travel with or without a medium?
Light is a form of electromagnetic radiation that can travel through a vacuum, or a space with no air, meaning it does not require a medium to travel through. Other forms of electromagnetic radiation, like radio waves, microwaves, and x-rays, can also travel through a vacuum. Sound, on the other hand, is a form of mechanical wave which requires a medium to travel. This medium can be a solid, liquid, or gas, and is the way sound travels from one place to another. For example, when someone speaks, the sound waves travel through the air and reach our ears. In summary, light and other forms of electromagnetic radiation can travel with or without a medium, while sound requires a medium to travel.
Can you see light in a vacuum?
No, light cannot be seen in a vacuum because light requires a medium to travel through in order to be visible. In a vacuum, there is no medium for the light to interact with, so it cannot be seen.
Which wave requires medium?
Mechanical waves, such as sound waves and water waves, require a medium (substance) to travel through. Electromagnetic waves, like light waves, do not require a medium and can travel through a vacuum.
All waves need a medium to travel?
This statement is not accurate. Electromagnetic waves, such as light and radio waves, can travel through a vacuum where there is no medium. They do not require a physical medium like air or water to propagate.
