Sound Vocabulary
Harmonics
Mirrors
Refraction
Mrs. Latta
100
Sound waves that the average human can hear.
Audible Sound Waves
100
The lowest frequency of vibration of a standing wave
Fundamental Frequency
100
The change in direction of an electromagnetic wave at a surface causes it to move away from the surface
Reflection
100
The bending of a wave front as the wave front passes between two substances in which the speed of the wave differs.
Refraction
100
How old is Mr. Latta?
29
200
Sound waves less than 20 Hz
Infrasonic
200
A set of frequencies that includes the fundamental frequency and integral multiples
Harmonic Series
200
Which angle is the angle of reflection?
angle 2
200
A lens that is thicker in the center and thinner at the edges best for farsighted people.
converging lens
200
Where is Mrs. Latta going for spring break?
Tokyo, Japan
300
Occurs when the frequency of a force applied to a system matches the natural frequency of the system, resulting in a large amplitude of vibration.
Resonance
300
Write the formula to calculate the fourth harmonic from the fundamental frequency.
F4 = 4 x F1
300
Which angle is the angle of incidence?
angle 1
300
A lens that is thinner in the center and thicker at the edges best for people with nearsightedness.
diverging lens
300
How many siblings does Mrs. Latta have?
1 brother
400
An observed change in frequency when there is relative motion between the source of waves and an observer. (sirens on an ambulance as it travels through traffic)
The doppler effect
400
Which harmonic series only results in odds harmonics present?
The harmonic series of a pipe closed at one end
400
an image from which light rays appear to diverge, even though they are not actually focused there.
virtual image
400
Mirror bonus: How would an image appear if an object is located on the center of the mirror?
inverted at the same point
400
What instrument did Mrs. Latta play in high school?
The cello
500
Describe the relationship between a forced vibration and a sympathetic vibration
Forced vibration: an external force causing an object to vibrate
Sympathetic vibration: A vibration that is caused by another vibration
All sympathetic vibrations are forced vibrations but not all forced vibrations are sympathetic.
500
What is the restoring force of a pendulum?
Gravitational Force due to the bob's weight
500
How would an image appear if an object is located between the focal point and the mirror?
upright, virtual, and larger
500
Mirror Bonus: Where would an object need to be located to produce no image with a concave mirror?
at the focal point.
500
How many total scholars does Mrs.Latta teach in a day?
82