Question

why do you think the temp goes up as the air gets compressed.. (hint: think about how air particles move and friction)
ready? enter your answer here.

Explanation:

When air is compressed, work is done on the air particles. This work increases the kinetic energy of the air molecules (particles) as they are forced closer together. The increased movement and collisions (including friction - like interactions) between particles convert this work energy into thermal energy. As the kinetic energy of the particles rises, the temperature (a measure of average kinetic energy of particles) of the air also increases.

Answer:

When air is compressed, work is done on air particles, increasing their kinetic energy (via more movement and collisions, including friction - like interactions). Since temperature is the average kinetic energy of particles, the air's temperature rises.