Frequency: The frequency of a wave refers to the number of complete cycles it undergoes in one second. In the case of a gamma ray photon, it represents how fast the waves are oscillating.
Energy Level: In physics, energy levels refer to discrete states that particles or systems can exist in. For gamma ray photons, different energy levels correspond to different frequencies and wavelengths.
Electromagnetic Spectrum: The electromagnetic spectrum encompasses all forms of electromagnetic radiation, ranging from radio waves with low energy and long wavelength to gamma rays with high energy and short wavelength.