Term
|
Definition
| Particular transmission frequency assigned to a radio station. |
|
|
Term
|
Definition
| Lens that is thicker at its edges than in the middle and causes light rays traveling parallel to the optical axis to diverge. |
|
|
Term
|
Definition
| Lens that is thicker in the middle than at its edges and causes light rays to converge (focus). |
|
|
Term
|
Definition
|
|
Term
|
Definition
| Bending of waves around a barrier. |
|
|
Term
|
Definition
| Range of electromagnetic waves with different frequencies and wavelengths. |
|
|
Term
|
Definition
| Negatively-charged particles that move around the nucleus of an atom. |
|
|
Term
|
Definition
| Highest-frequency, most penetrating electromagnetic wave. |
|
|
Term
| Global Positioning System (GPS) |
|
Definition
| Uses satellites, ground-based stations, and portable units with receivers to locate objects on Earth. |
|
|
Term
|
Definition
| Electromagnetic wave that is sensed as heat and is emitted by almost every object. |
|
|
Term
|
Definition
| Ability of two or more waves to combine and form a new wave when they overlap. |
|
|
Term
|
Definition
| Transparent object that has at least one curved surface that causes light to bend. |
|
|
Term
|
Definition
| Narrow beam of light traveling in a straight line. |
|
|
Term
|
Definition
| A type of wave that uses matter to transfer energy. |
|
|
Term
|
Definition
| Positively-charged particle that is located in the nucleus of an atom. |
|
|
Term
|
Definition
| Energy carried by an electromagnetic wave. |
|
|
Term
|
Definition
| Lowest-frequency electromagnetic waves that carry the least amount of energy and are used in most forms of telecommunication technology - such as TVs, telephones and radios. |
|
|
Term
|
Definition
| Occurs when a wave strikes an object or surface and bounces off. |
|
|
Term
|
Definition
| Bending of a wave as it moves from one medium into another medium. |
|
|
Term
|
Definition
| A type of mechanical wave in which the wave energy causes matter in the medium to move up and down or back and forth at right angles to the direction the wave travels. |
|
|
Term
|
Definition
|
|
Term
| Ultraviolet Radiation (UV) |
|
Definition
| Electromagnetic waves with higher frequencies and shorter wavelengths than visible light. |
|
|
Term
|
Definition
| Electromagnetic waves with wavelengths between 0.7 and 0.4 millionths of a meter that can be seen with your eyes. |
|
|
Term
|
Definition
| Rhythmic movement that carries energy through matter or space. |
|
|
Term
|
Definition
| In transverse waves, the distance between the tops of two adjacent crests or the bottoms of two adjacent troughs; in compressional waves, the distance from the centers of adjacent rarefactions. |
|
|
Term
|
Definition
| High-energy electromagnetic waves that are highly penetrating. |
|
|
