When energy is transferred to air, what happens to the particles of air?

The energy transferred to the air makes the air molecules excited. This causes them to move quickly increasing the temperature.

Explanation:

The transmission of thermal energy is something common from day to day, because it is through it that food is cooked, that there are winds, that we are warmed by sunlight, among other examples. Transmission occurs from the warmest to the least warm environment. When this energy transmission occurs through the air, the air receives energy from the warmer environment, this energy makes the air molecules excited, energized. For this reason, these molecules begin to move rapidly causing a rise in temperature.

temp rises, and expansion

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me