Assistant Laboratory Animal Technician (ALAT) Practice Exam 2025 – Complete All-in-One Guide to Exam Success!

The term for the emission of energy rays through the air and other matter is radiation. Radiation encompasses a wide range of energy types that are emitted in the form of waves or particles. This includes not only visible light but also other forms of electromagnetic radiation, such as X-rays, gamma rays, and ultraviolet light.

When energy is emitted, it propagates through vacuum or various mediums, reflecting or interacting with materials in its path. This property is significant in many fields, including medical imaging, radiation therapy, and environmental science, where understanding how energy moves through tissues or substances is crucial.

Radioactivity refers specifically to the process by which unstable atomic nuclei lose energy by emitting radiation, and while it involves radiation, it is not a general term for the emission itself. Conduction is a process of heat transfer through direct contact between materials, and refraction pertains to the bending of waves as they pass from one medium to another. Thus, radiation aptly captures the concept of energy rays traveling through different media.