Section 1
What do waves carry or transfer?
Energy
The transverse wave has alternating high points called ________________, and low points, called ________.
Crests and Troughs
The bending of a wave caused by a change in its speed as it moves from one medium to another is
Refraction
What is equal to the angle of reflection?
angle of incidence
The distance between one point on a wave and the nearest point just like it is called
Wavelength
The matter that the waves travel through is called
a medium
The less dense region of a compressional wave is called a
Rarefaction
True or False:
Light waves travel slower in water than in air.
True
Which type of wave has points called nodes that do not move?
Standing waves have nodes that do not move.
The number of wavelengths that pass a fixed point each second is called a
Frequency
All waves have this property - they carry __________ without transporting matter from place to place.
Energy
How is wavelength and frequency of a wave related?
As frequency increases, wavelength decreases.
This occurs when an object causes a wave to change direction and bends around it.
Diffraction
Which part of a compressional wave has the lowest density?
The rarefaction of a compressional wave has the lowest density?
When two or more waves overlap and combine to form a new wave, the process is called
Interference
What is the difference between transverse and compressional waves?
transverse waves move at right angles to the direction the waves travel, compressional waves move back and forth in the same direction as the waves travel.
This is related to the energy carried by a wave.
What is amplitude?
Describe interference:
When two or more waves overlap and combine to form a new wave, the process is called interference.
What does a mechanical wave always travel through?
A mechanical wave always travels through a medium.
A special type of wave pattern that forms when waves equal in wavelength and amplitude, but traveling in opposite directions, continuously interfere with each other is a
Standing wave
Mechanical waves travel through a medium, name the three types of medium mechanical waves travel through.
A solid, a liquid, a gas, or a combination of the three.
What is the speed of a sound wave that has a wavelength of 2.0 meters and a frequency of 170.5 Hz?
341 m/s
When does refraction occur?
When a wave changes speed as it moves from one medium to another at an angle.
What is the relationship among amplitude, crest, and trough?
The amplitude of any transverse wave is the distance from the crest or trough to the rest position of the medium.
The process by which a object is made to vibrate by absorbing energy at its natural frequency is called
Resonance