• Shuffle
Toggle On
Toggle Off
• Alphabetize
Toggle On
Toggle Off
• Front First
Toggle On
Toggle Off
• Both Sides
Toggle On
Toggle Off
Toggle On
Toggle Off
Front

### How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

Play button

Play button

Progress

1/32

Click to flip

### 32 Cards in this Set

• Front
• Back
 Vibration A wiggle in time. Wave A wiggle in space and time. Period The time of a back and forth swing or a simple period of time from the beginning of something to the end. Simple Harmonic Motion The back and forth vibratory motion of a swinging pendulum. Sine Curve Pectorial representation of a wave. Crest High point of a wave. Trough Low point of a wave. Amplitude The distance from the mid-point to the crest (or tough) of a wave. Wavelength The distance from the top of one crest to the top of the next one. Frequency How frequently a vibration occurs. Hertz Unit of frequency. What is the source of all waves? Something that vibrates. If the frequency is 2 Hz, how much time is needed to complete one vibration? 3 Hz? 1/2 second, 1/3 second. Sound Energy that travels to our ears in the form of one kind of wave. T/F - It is the disturbance that moves along the length of the string, not the parts of the string itself. True What determines the speed of a wave? The medium through which it moves. When is a wave a "transverse" wave? Whenever the motion of the medium is at right angles to the direction in which a wave travels. Examples of transverse waves? In the stretched strings of musical instruments and upon the surfaces of liquids. Electromagnetic radio waves and light are also examples. Longitudinal Wave The particles move along the direction of the wave rather than at right angles to it. Interference Pattern Wave effects may be increased, decreased, or neutralized. Consructive Interference The result of a wave is increased amplitude. Destructive Interference Cancellation T/F - Interference is a characteristic of all sound waves. False, it is a characteristic of all wave motion in general. Node The parts of a rope on a standing wave that remain stationary. Anti-Nodes The positions on a standing wave with the largest amplitudes are known as antinodes. T/F - Standing waves can be produced in transverse and sound waves. False, standing waves can be produced in transverse or longitudinal waves. Doppler Effect The change in frequency due to the motion of the source. The greater the speed of the source, the greater will be the Doppler effect. Blue Shift An increase in frequency, named so because of the fact that the increase is toward the high-frequency, or blue, end color spectrum. Red Shift A decrease in frequency. Supersonic Faster than sound. Shock Wave A shock wave is produced by overlapping spheres that form a cone. Sonic Boom When the conical shell of compressed air that sweeps behind a supersonic aircraft reaches listeners on the ground below, the sharp crack they hear is described as a sonic boom.