Natalia is studying a wave produced in her magnetics lab. this wave can move through the empty space in a vacuum and carries a lot of energy.
what wave is natalia most likely studying?
a sound wave
an ocean wave
a gamma ray
an earthquake shock wave

The correct answer is

a gamma ray

In fact, only electromagnetic waves can move through empty space, and gamma rays are an example of electromagnetic waves. In fact, gamma rays are the electromagnetic waves with greatest energy, since they are the electromagnetic waves with highest frequency (and the energy of an electromagnetic wave is proportional to the frequency, following the relationship

where h is the Planck's constant and f the frequency).

Therefore, gamma rays can move through vacuum and carry a lot of energy.