Answer:
From the plastic cup to the water
Step-by-step explanation:
The thermal energy is transferred from the plastic cup to the water inside the cup.
This is because thermal energy moves from a body at high temperature to one at lower temperature.
- Thermal energy is the energy due to the motion of the particles of a medium.
- An increase in thermal energy leads to a rise in the average kinetic energy of the system.
- It moves over a gradient usually from a body with a high temperature to one at a lower temperature.