Do transferring energy and applying force to a body imply same? Do transferring energy and applying force to a body imply same meaning? When we say, "I throw a ball using my pushing force so on the other hand, can I say that I transferred my kinetic energy to the ball therefore it became moving.
 A: No. In a uniform circular orbit the orbiting body maintains constant energy while a constant force, only changing in direction, operates on that body.
Kinetic energy changes when a net force is applied in the direction that an object is moving. It will reduce if the net force opposes velocity, or increase if net force supports velocity. 
A: Yes. When you apply a net force to a mass (please note the word "net"), the object become accelerated . This acceleration means the body changes velocity, and a change in velocity means there is a change in the energy, because of the energy formula:

$E=\frac{1}{2}mV^2$

The case of the circle is particularly interesting, because there is a force applied but the energy does not change. This is the result of applying force to decrease the velocity of the mass in a direction (say the x axis, if the mass initially moves over the x axis) while at the same time you apply force to accelerate the same mass in a perpendicular direction (the y axis). This makes the velocity-energy to keep constant while you apply a centripetal force. You can check this by yourself by decomposing the centripetal force in its x-y components and calculating work done (and work done = energy). Or, you can check the demonstration.
