Doppler Effect

Flashcards covering key concepts related to the Doppler effect including its definition, effects on observed frequency, and examples.

What is the Doppler effect?

The change in observed frequency of waves due to relative motion between the wave source and an observer.

What happens to the observed frequency when a wave source moves toward an observer?

The observed frequency increases.

What happens to the observed frequency when a wave source moves away from an observer?

The observed frequency decreases.

Can the Doppler effect occur with electromagnetic waves?

Yes, it occurs with all types of waves, including electromagnetic waves.

Give an example of the Doppler effect in everyday life.

The change in pitch of a siren as an ambulance approaches and then moves away from a stationary observer.