Radiation physics

Radiation physics is like a game of tag, but instead of tagging with your hands, you tag with tiny particles called "photons". These photons are like tiny balls of energy that fly through space at the speed of light.

There are two types of radiation: ionizing and non-ionizing. Ionizing radiation is like playing tag with special photons that are very fast and powerful, and they can knock away tiny particles in our bodies, like electrons. This can be dangerous because if these particles are knocked away from important places, like our DNA, it can cause harm to our cells.

Non-ionizing radiation is like playing tag with regular photons that don't have as much energy, and they're not strong enough to knock away particles in our bodies. Examples of non-ionizing radiation include sunlight and radio waves.

Radiation can be used for good things too, like in medical imaging. Doctors use machines that emit ionizing radiation to take pictures of our insides, so they can see if there are any problems.

In summary, radiation physics is like playing tag with tiny particles called photons, and some of these photons can be dangerous if they have enough energy to knock away particles in our bodies, while others are harmless. Radiation can be used for good things too, such as in medical imaging.