As a block slides across a table, its speed decreases while its temperature increases. Which two changes occur in the block's energy as it slides?
The two changes that occur in the block's energy as it slides are:
1. Kinetic Energy: The block's speed decreases as it slides, indicating a decrease in its kinetic energy. Kinetic energy is the energy associated with an object's motion, and as the block slows down, its kinetic energy decreases.
2. Thermal Energy: The block's temperature increases as it slides, indicating an increase in its thermal energy. Thermal energy is the energy associated with the motion of particles within an object, and as the block slides, the friction between the block and the table generates heat, increasing the block's thermal energy.