Waves

Front

What is an echo?

Back

An echo is a reflected sound wave that arrives at the listener after bouncing off a surface.

Front

What is an antinode in a wave?

Back

An antinode is a point in a standing wave where the amplitude is at its maximum.

Front

What happens to the wavelength when the frequency of a wave increases?

Back

The wavelength decreases.

Front

What does the period of a wave represent?

Back

The period is the time taken for one complete cycle of the wave.

Front

What is the fundamental frequency?

Back

The fundamental frequency is the lowest frequency at which a system oscillates.

Front

Define wavelength.

Back

Wavelength is the distance between successive crests or troughs of a wave.

Front

What is frequency?

Back

Frequency is the number of cycles of a wave that occur in a unit of time, typically measured in Hertz (Hz).

Front

Explain the relationship between frequency and wavelength.

Back

Frequency and wavelength are inversely related; as frequency increases, wavelength decreases.

Front

What is a node in a wave?

Back

A node is a point in a standing wave where the amplitude is zero.

Front

What is the speed of a wave?

Back

The speed of a wave is the distance traveled by a wave in a unit of time, calculated as speed = frequency × wavelength.