physics unit 17 Flashcards
The pulse is perpendicular to the direction of travel
Transverse wave
Disturbance that may or may not require a medium
Wave
Time for one complete cycle
Period
Reduction in amplitude as the wave moves away from the source
Damping
Relation of the position of the crests for 2 waves
Phase
The spreading of the wave beyond the edge of a barrier
Diffraction
Wave addition
Superposition
Complete destructive interference, complete cancellation
Nodes
Magnitude of the disturbance
Amplitude
Particles farther apart than equilibrium, negative pressure
Rarefraction
A type of wave that requires a medium
Mechanical wave
The angle formed by the direction of the wave and the normal to the barrier
Angle of incidence
Complete constructive interference; maximum displacement
Antinodes
Effects caused by two or more waves that superimpose
Interference
A type of wave that doesn’t require a medium
electromagnetic wave
Distance a wave moves during one complete cycle
Wavelength
Bending the path of a wave as it passes from one medium to another
Refraction
Direction the wave is changed by a boundary
Reflection
Direction of the wave movement is perpendicular to the wavefront
Rectilinear propagation
The number of cycles in a given amount of time
Frequency
The pulse is parallel to the direction of travel
Longitudinal wave
The result produced by 2 waves of the same amplitude and wavelength traveling in the same direction
Standing waves
Ratio of the wave producing force to the displacement velocity
Impedance
Particles closer than equilibrium, positive pressure
Compression
