Guhu

• Matter is anything that occupies space and has mass.
• Atoms are the building blocks of matter.
• Mass is the quantity of matter as described by its energy equivalence and is the distinguishing characteristic of matter.
• Weight is the force exerted on a body under the influence of gravity.
• Matter is a material substance with mass of which physical objects are composed.
• Atoms and molecules are the fundamental, complex, building blocks of matter.
• Energy is the ability to do work and is measured in joules (J) or electron volts (eV) in Radiology.
• Potential Energy is the ability to do work by virtue of position.
• Kinetic Energy is the energy in motion.
• Chemical Energy is the energy released by a chemical reaction.
• Electrical Energy is the work that can be done when an electron moves through an electric potential difference (V).
• Radiation is the energy emitted and transferred through space.
• Visible Light is radiated by the sun.
• Exposed/Irradiated refers to matter that intercepts and absorbs radiation.
• UV Light causes sunburn.
• Ionizing Radiation is any type of radiation that is capable of removing an orbital electron from the atom with which it interacts, examples include x-rays, gamma rays, and UV light.
• Ionization is the removal of an electron from an atom.
• Particulate-type Ionizing Radiation includes alpha & beta particles.