Understanding Main Ideas
How are these three properties related(Wavelength x Frequency=speed) properties related
Because speed depends on the frequency and wavelength of the wave.
The height of a wave's (wavelength) depends on its amplitude.
False/Crest
Frequency is measured in units called
A. periods
B. nanoseconds
C. hertz
D. eras
C. Hertz
What's the meaning of constructive interference ?
interaction of two waves that results in a wave with a larger amplitude
A wave refracts because one side of the wave changes _________ before the other side.
it's speed
What are types of mechanical waves ?
Transverse and longitudinal waves
Waves change direction by diffraction, reflection, and (deflection).
False/Refraction
Reflection occurs when a wave
A. bends due to a change in speed
B. hits a surface and bounces back
C. passes through an opening
D. bends around a barrier
B/Hits a surface and bounces back
What's the meaning of diffraction ?
The bending and spreading out of waves around the edge of a barrier
A wave______ and spreads out in diffraction.
Bends
Name four properties of a wave ?
Frequency
Wavelength
Amplitude
Speed
Mechanical waves form when a source of energy causes a medium to (compress).
False/Vibrate
The highest part of a transverse wave are called ?
A.Transversals
B. Summits
C. Troughs
D. Crests
D. Crests
What's the meaning of interference ?
interaction between two waves that meet
Destructive interference in a standing wave produces points with zero amplitude called ______
Nodes
What happens when a source of energy causes a medium to vibrate?
It creates a wave
Each particle of water in an ocean wave moves in (Circles)
True
In longitudinal waves in a spring, the parts where the coils are close together are called ?
A. Compressions
B. Rarefactions
C. Longitudes
D. Contractions
A. Compressions
What's the meaning of resonance ?
increase in amplitude that occurs when external
vibrations match an object's own natural frequency
A standing wave is actually two waves _______ as they pass through each other.
Interfering
What happens to the speed of a wave if the medium, temperature, and pressure do not change?
It remains the same
The speed, wavelength, and frequency of a wave are related by. A (scientific theory).
False/Mathematical Formula
Interference in which waves combine to form a wave with a larger amplitude than either wave originally had is called
A/ destructive interference
B. amplitude enhancement
C. constructive interference
D. resonance
C/constructive interference
What's the meaning of standing waves ?
A wave that appears to stay in one place
Waves do not bend when entering a new medium at a ______ angle
right angle