Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chapter 17
| Term | Definition |
|---|---|
| Mechanical Wave | A disturbance in matter that carries energy from one place to another |
| Medium | The material through which a wave travels |
| Crest | The highest point of a transverse wave |
| Trough | The lowest point of a transverse wave |
| Transverse Wave | A wave that causes a medium to vibrate at right angles to the direction the wave is traveling |
| Compression | An area of a longitudinal wave where the particles of the medium are close together |
| Rarefaction | An area of a longitudinal wave where the particles of the medium are spread out |
| Longitudinal Wave | A wave in which the vibration of the medium is parallel to the direction the wave travels |
| Surface Wave | A wave that travels along the surface separating two media; a transverse wave that develops when a seismic wave reaches Earth's surface |
| Periodic Motion | Any motion that repeats at regular time intervals |
| Period | The time required for one complete cycle of a periodic motion |
| Frequency | The number of complete cycles per unit time for a periodic motion |
| Hertz | The unit of measure for frequency, equal to one cycle per second |
| Wave Length | The distance between a point on a wave and the same point on the next cycle of the wave |
| Amplitude | The maximum displacement of a medium from the rest position |
| Reflection | The interaction that occurs when a wave bounces off a surface that it cannot pass through |
| Refraction | The bending of a wave as it enters a new medium at an angle |
| Diffraction | The bending of a wave as it moves around an obstacle or passes through a narrow opening |
| Interference | The interaction of two or more waves that combine in a region of overlap |
| Standing Wave | A wave that appears to stay in one place and does not seem to move through a medium |
| Node | A point on a standing wave that has no displacement from the rest position |
| Antinode | A point of maximum displacement midway between two nodes in a standing wave |
| Electromagnetic Waves | A transverse wave consisting of changing electric and changing magnetic fields |
| Electric Field | A field in a region of space that exerts electric forces on charged particles |
| Magnetic Field | A field in a region of space that exerts on a magnet, on a ferromagnetic material, or on a moving electric charges |
| Electromagnetic Radiation | The transfer of energy by electromagnetic waves |
| Photoelectric Effect | The emission of electrons from a metal caused by light striking the metal |
| Photons | A packet of electromagnetic energy |
| Intensity | A rate at which the wave's energy flows through a given unit of area |
| Electromagnetic Spectrum | A full range of electromagnetic radiation |
| Amplitude Modulation | A method of transmitting a radio signal in which the amplitude of the carrier wave varies while its frequency remains the same |
| Frequency Modulation | A method of transmitting a radio signal in which the frequency of the carrier wave varies while its amplitude remains the same |
| Thermograms | A color-coded picture using variations in infrared radiation to show variations in temperature |
Created by:
nichols143
Popular Physical Science sets