Final answer:
Short-wave diathermy uses electromagnetic energy.
Step-by-step explanation:
The type of energy used with short-wave diathermy is electromagnetic energy.
Short-wave diathermy is a form of therapeutic treatment that utilizes electromagnetic waves to generate heat within the body. It is commonly used in physical therapy to relieve pain and improve flexibility in injured or overworked muscles.
Unlike other options listed, such as acoustic or kinetic energy, short-wave diathermy specifically relies on electromagnetic energy to produce its therapeutic effects.