Assertion: if an earth satellite moves to a lower orbit, there is some dissipation of energy but the satellite speed increases.
Reason: The speed of satellite is a constant quantity.

Orbital speed of a satellite

An artificial satellite moves in a circular orbit around the earth. Total energy of the satellite is given by E.The potential energy of the satellite is

An artificial satellite moves in a circular orbit around the earth. Total energy of the satellite is E. Then what is the potential energy of satellite

It is observed that when a satellite jumps to a lower orbit in the earth's atmosphere, it becomes hot, which indicates some dissipation of energy. But the orbital speed of the satellite increases as it approaches the earth. Why?

As the height of satellite orbit gets lower, the speed of the satellite