AP Physics 1
Advanced Placement Physics 1 covers the fundamentals of mechanics, waves, and electricity in preparation for college-level physics.
Basic Concepts
Waves and Sound
Vibrations and Energy Transfer
Waves are disturbances that transfer energy from one place to another without moving matter permanently. Sound is a type of mechanical wave that travels through air, water, and solids.
Types of Waves
- Transverse Waves: The disturbance is perpendicular to the direction of travel (like light waves).
- Longitudinal Waves: The disturbance is parallel to the direction of travel (like sound waves).
Properties
- Wavelength (\(\lambda\)): Distance between two consecutive wave peaks.
- Frequency (\(f\)): Number of waves passing a point per second.
- Amplitude: Height of the wave; relates to energy.
Sound in the Real World
From music and speech to sonar and echolocation, sound waves play a vital role in communication and technology.
Examples
You hear music because sound waves travel from the speakers to your ears.
Ocean waves carry energy to the shore, causing movement of sand and shells.
In a Nutshell
Waves transfer energy, and sound is a wave that lets us hear the world.