Lesson 2 Flashcards
When the medium ends and is held firmly in place
Fixed end
When the medium ends and is not held in place
Free end
A point where the first medium ends but a second medium exists and the wave continues to travel through it
Boundary
The boundary of a wave back into the medium that it was in before
Reflection
The wave before reflection
Incident
The wave after the reflection has occurred
Reflected
True or false: pulses reflected from a free end are upright on the same side of the medium as an incident pulse
True
Are pulses reflected from a free end are equal in amplitude to the incident pulse
Yes
Are pulses reflected from a free end are travelling at the same speed as the incident pulse and they are equal in length to the incident pulse
Yes
This is reflection form what kind of end: inverted, equal in amplitude to incident pulse, same speed as incident pulse, equal in length as incident pulse
Fixed end
What happens when pulse reaches the boundary separating two media’s?
The pulse will partially reflect and partially transmit
What happens when a wave goes from a fast medium to a slow medium?
The partial reflection will resemble that of a free end
True or False: when a wave moves from one medium to another the sped will change
True
True or False: Frequency of the incident wave will be equal to frequency of the source that created them
True
If frequency of a wave is constant, and the speed changes will the wave length also change?
Yes the wavelength will change
When a periodic wave moves from one medium to another will its wavelength change?
Yes the wavelength will change
