UNIVERSE
LIFE IN THE SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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There is no air.
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There is no air. Without air, your voice cannot travel through space. You need a radio.
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In sunlight, a spacesuit can heat up to over 100 degrees Celsius
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You need a radio
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Detailed explanation-1: -There is no sound in space because there are no molecules there to transmit the sound waves. Electromagnetic waves are not like sound waves because they do not need molecules to travel. This means that electromagnetic waves can travel through air, solid objects and even space.
Detailed explanation-2: -Sound travels through the vibration of atoms and molecules in a medium (such as air or water). In space, where there is no air, sound has no way to travel.
Detailed explanation-3: -The vacuum of outer space has essentially zero air. Because sound is just vibrating air, space has no air to vibrate and therefore no sound. If you are sitting in a space ship and another space ship explodes, you would hear nothing.
Detailed explanation-4: -This is because sound travels through the vibration of particles, and space is a vacuum. On Earth, sound mainly travels to your ears by way of vibrating air molecules, but in near-empty regions of space there are no (or very, very few) particles to vibrate – so no sound.
Detailed explanation-5: -Space has no air. Since sound waves require a material medium to propagate, therefore, astronauts cannot talk to each other in space. However, radio waves do not require any material medium for propagation and hence can be picked by the radio receiver.