Science Test 1 Flashcards
Highest point of a wave
Crest
Lowest point of a wave
Trough
Measurement from crest to crest or trough to trough
Wavelength
How much energy a wave carries
Amplitude
Number of waves per second
Frequency
Any disturbance that transmits energy through matter or empty space
Waves
When two waves mix together
Interface
Substance through which waves can travel
Medium
What a wave transfers
Energy
Send as to continuous wave
Analog
Send as wave pulses
Digital
Sent as binary code, ones and zeros
Digital
Used in an old record player when a needle follows a groove
Analog
Preserves the original shape of a sound wave
Analog
Holds more information and transfers, information faster, and easier
Digital
Can become distorted when components wear down, and can also become distorted when waves travel through medium or over long distances
Analog
Media can break and become outdated
Digital
If an amplitude is low, what is the energy?
Low
If an amplitude is high, what is the energy?
High
How are amplitude and energy related?
Normally an increase in amplitude result in an increase in energy
What kind of signal is stair stepped
Digital
What kind of signal is smooth?
Analog
What does having bigger pixels mean?
Less information and worse quality
What does having smaller pixels mean?
More information and better quality
