For a satellite moving in an orbit around the earth, the ratio of kinetic energy to potential energy is :

For a satellite in orbit around the Earth, the gravitational potential energy (U) is given by U = -GMm/r, where G is the gravitational constant, M is the mass of the Earth, m is the mass of the satellite, and r is the radius of the orbit. The kinetic energy (K) of the satellite is given by K = (1/2)mv^2, where v is the velocity of the satellite. The velocity of a satellite in a circular orbit is given by v = √(GM/r). Substituting this into the expression for kinetic energy gives K = (1/2)m * (GM/r) = GMm / (2r). The ratio of kinetic energy to potential energy is thus K/U = (GMm / (2r)) / (-GMm/r) = -1/2.