Year 9 Sound - Definitions of key words quiz (L1 only)

The back and forth motion of an object between two points.

• frequency

• wave

• vibration
• oscillation

A type of wave in which the direction of energy transfer is parallel to the direction of vibration of particles

• transverse wave
• standing wave
• light wave

• longitudinal wave

A type of wave in which the direction of energy transfer is perpendicular to the direction of vibration of particles

• transverse wave
• standing wave
• light wave

• longitudinal wave

Part of a longitudinal wave where particles are pushed close together.

• compression

• rarefaction

• peak

• wavelength

Part of a longitudinal wave where particles are spread far apart.

• compression

• rarefaction

• peak

• wavelength

The maximum extent of vibration of a wave from the position of equilibrium (i.e. the height of a wave)

• frequency
• amplitude
• wavelength
• velocity

A measure of how many waves are produced or pass a certain point each second, measured in units of Hertz (Hz)

• wavelength
• amplitude
• frequency
• velocity

The distance between two peaks on two adjacent waves.

• wavelength
• velocity
• amplitude
• frequency

The highest part of a wave (i.e. furthest from equilibrium)

• Peak

• Trough

• Top

• Amplitude

The lowest part of a wave (i.e. furthest from equilibrium)

• Peak

• Trough

• Top

• Amplitude