Question

if the energy of the wave becomes part of the internal energy of the object, then the waves energy is

Explanation:

When a wave's energy becomes part of an object's internal energy, it means the object has taken in (absorbed) that energy. Transmission involves the wave passing through the object, reflection is the wave bouncing off, and refraction is the wave bending as it passes through. So, the correct term here is absorbed.

Answer:

absorbed