W Flashcards
What is the universal wave equation?
V = S2
How do long waves compare to short waves in terms of frequency and period?
Long waves have small frequency values and long period values.
In which medium does sound travel slowest?
Gases
In which medium does sound travel fastest?
Solids
What holds atoms together in solids?
Intermolecular forces
How do waves transfer energy through solids?
Efficiently, since the particles are close together.
How does the atomic arrangement in liquids compare to solids?
Atoms are further apart but still in contact.
How does energy transfer through gases compare to solids and liquids?
Least effective, as atoms are furthest apart.
What is the formula for the speed of sound in air?
V = 332 + 0.6T
What is the speed of sound at 0°C in air?
332 m/s
Who proposed the Doppler Effect?
Christian Doppler
What is the phenomenon of the Doppler Effect?
Change in frequency perceived by observers due to the motion of the source.
What happens to the observed frequency when the source is moving towards the observer?
Higher frequency
What happens to the observed frequency when the source is moving away from the observer?
Lower frequency
What is the Doppler Shift?
The difference in observed frequency and emitted source frequency.
What is the speed of all electromagnetic waves in a vacuum?
c = 3.00 x 10^8 m/s
What happens to wavelength and frequency as wavelength decreases?
Frequency increases.
What is wave interference?
Interaction of multiple waves caused by particle vibrations.
What does the Principle of Superposition state?
To determine the amplitude of interfering waves, add the individual amplitudes.
Fill in the blank: The resultant amplitude of two waves interfering is the _______ of the individual amplitudes.
sum
