amplitude

«amplitude» in Mova's school dictionary: The size of a wave: how high it rises from its middle line — its meaning for a pupil, its sense in the lessons and examples.

part of speech

noun (amplitude, amplitudes)

meaning for a pupil

1) (science) The size of a wave: how high it rises from its middle line. In sound, bigger amplitude means louder; in light, brighter. tree →

2) (formal) Large size or plenty. tree →

sense in the lessons

In science and maths, amplitude is half the distance from the top of a wave to its bottom. In sound lessons it is linked to loudness; pitch is linked to frequency. Phrases: «high amplitude», «amplitude of a wave».

examples

• A loud sound has a big amplitude. tree →
• Draw a wave with a small amplitude. tree →
• The earthquake's waves had a huge amplitude. tree →
• Amplitude is measured from the middle line to the top. tree →
• Turning up the volume increases the amplitude. tree →
• The amplitude of the swing got smaller as it slowed down. tree →

note

For numbers: amplitude = (highest point − lowest point) ÷ 2. Trap: amplitude is loudness, not pitch (pitch is frequency).

Trees and pragmatics

Every meaning and example of «amplitude» parsed by Mova, each sentence with its dependency tree and frames.