Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
8 Cards in this Set
- Front
- Back
|
Sound Waves
|
longitudinal waves, made by particles vibrating.
|
|
|
Pitch
|
how high a note is.
|
|
|
Oscilloscopes
|
used to look at electrical signals, which represent the waves on a screen.
|
|
|
Echoes
|
sound waves bouncing off surfaces.
|
|
|
Ultrasound
|
sound waves that have very high frequency.
|
|
|
Electromagnetic Spectrum
|
series of waves that all travel the same speed in a vacuum. Transverse waves.
|
|
|
Analogue Signals
|
continuous range of values.
|
|
|
Digital Signals
|
two values: off (0) and on (1).
|
