Front

What is the Doppler effect?

Back

The Doppler effect is the change in frequency or wavelength of a wave in relation to an observer moving relative to the wave source.

Front

How does the pitch of sound change as the source moves toward an observer?

Back

The pitch of sound increases (wavelengths shorten) as the source moves toward an observer.

Front

How does the pitch of sound change as the source moves away from an observer?

Back

The pitch of sound decreases (wavelengths lengthen) as the source moves away from an observer.

Front

What is refraction?

Back

Refraction is the bending of a wave as it passes at an angle from one medium to another due to a change in wave speed.

Front

What causes a wave to bend during refraction?

Back

A wave bends during refraction because its speed changes between the first and second medium.

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, which vary in wavelength and frequency.

Front

What determines the position of electromagnetic waves on the electromagnetic spectrum?

Back

The position of electromagnetic waves on the spectrum is determined by their wavelengths, frequencies, and energy transfer.

Front

What is the relationship between frequency and wavelength in waves?

Back

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

Front

What is reflection in wave interactions?

Back

Reflection is the bouncing back of a wave when it hits a barrier or surface.

Front

What is absorption in wave interactions?

Back

Absorption is the process by which a wave's energy is taken in by a material, converting it to other forms of energy.