| A | B |
|---|
| wave | a disturbance that transfers energy from place to place (ex: through a body of water). |
| transverse wave | a wave that moves the medium in a direction perpendicular to the direction in which the wave travels. |
| crest | the highest point of a transverse wave. |
| trough | the LOWEST point of a transverse wave. |
| longitudinal wave | a wave that moves the medium parallel to the direction in which the wave travels. |
| frequency | the number of complete waves that pass a given point in a certain amount of time. |
| amplitude | the MAXIMUM distance the particles of a medium move away from their rest positions as a wave passes through the medium. |
| reflection | the bouncing back of a wave when it hits a surface through which it cannot pass. |
| refraction | the bending of waves as they enter a different medium. |
| diffraction | the bending of waves around the edge of a barrier. |
| interference | the interaction between waves that meet. |
| constructive interference | the interference that occurs when two waves combine to make a wave with a larger amplitude. |
| seismograph | a device (machine) that records ground movements caused by seismic waves as they move through Earth; used to detect and measure earthquakes. |
| force | a push or pull exerted on an object |
| Newton's Laws | 3 laws of Motion (re: push/pull;gravity/friction;action/reaction;force=acceleration |
