front 1 Vibration | back 1 A rapid back-and-forth movement of an object or substance. |
front 2 Pitch | back 2 How high or low a sound is. |
front 3 Amplitude | back 3 The size or strength of a vibration or wave. |
front 4 Frequency | back 4 How often something happens in a certain amount of time. |
front 5 Oscillation | back 5 A regular, repeating movement. |
front 6 Wave | back 6 A disturbance that travels through a medium, like water or air, carrying energy with it. |
front 7 Loudness | back 7 How loud or quiet a sound is. |
front 8 Intensity | back 8 The amount of energy that flows through a certain area in a given amount of time. |
front 9 Wavelength | back 9 The distance between two crests (high points) or two troughs (low points) of a wave |