Which best describes how combustion works?
Combustion is a chemical reaction in which a fuel is burnt in the presence of oxygen to form carbon dioxide, water and heat. Thus the chemical energy stored in the bonds of reactants is converted to thermal energy and heat is released in the combustion reaction.
Which wave is carrying the most energy?
second wave
Which wave carries the least energy?
Radio waves
What do radio waves bounce off of?
Low frequency radio waves do not travel very far through the atmosphere and are absorbed rather quickly. The high frequency waves pass through the ionosphere and escape into space while the low frequency waves reflect off the ionosphere and essentially “skip” around the earth.
Do radio waves bounce off mirrors?
It is possible for radio waves to be reflected in the same way as light waves. Visual examples of light reflection are everywhere from specific mirrors to flat reflective surfaces like glass, polished metal and the like. So too, radio waves can experience reflection.
Do radio waves decay in space?
Electromagnetic waves are attenuated as they pass through space, and it is a miss conception that this attenuation is 1/r^2. Space is not an absolute void, and there is always a loss as an electromagnetic wave passes through any medium. The attenuation is always greater than 1/r^2.
How far do radio waves go in space?
about 200 light-years
How far can radio waves travel in space?
Radio waves extend without limit into space. In fact, the Arecibo Observatory in Puerto Rico has sufficient power and sensitivity that it could communicate with an identical copy virtually anywhere in the Milky Way galaxy, or over 50,000 light years distance.
Can radio signals travel faster than light?
No. Radio waves ARE light, and so they travel at the speed of light. Possible exception: So, in the right medium, radio waves could travel faster than optical waves, but I wouldn’t call this “faster than light”; that would be very misleading…