Science 8B - Study Guide and Sample Work Name: ___________________
Unit 2 - Waves
Consider the waves A, B, C, and D
Waves ____ and ____ have clearly different frequencies.
Waves ____ and ____ have clearly different amplitudes.
Waves ___ and ___ are transverse waves, while waves ___ and ___ are longitudinal waves
What equation describes the relationship between wavelength (w), frequency (f), and velocity (v)? ___ = ___ x ___
Name three types of E.M. Radiation __________, __________, __________
Since all E.M. Radiation travels at the same speed, waves with
longer wavelengths have _________ frequencies.
Describe some similarities and differences between sound waves and light waves
Describe some similarities and differences between AM and FM signals
***You may have a hard time finding this in your lessons, you can look it up, please put answers in your own words—-we will go over this in LL.
Waves A and B have clearly different frequencies.
Waves A and D have clearly different amplitudes.
Waves A and B are transverse waves, while waves C and D are longitudinal waves.
The equation that describes the relationship between wavelength (w), frequency (f), and velocity (v) is v = w x f.
Three types of E.M. Radiation are radio waves, microwaves, and X-rays.
Since all E.M. Radiation travels at the same speed, waves with longer wavelengths have lower frequencies.
Similarities between sound waves and light waves:
- Both can travel through a medium (such as air or water).
- Both can be reflected and refracted.
- Both can have frequencies and wavelengths.
Differences between sound waves and light waves:
- Sound waves require a medium to travel, while light waves can travel through a vacuum.
- Sound waves are longitudinal waves, while light waves are transverse waves.
- Sound waves have lower frequencies and longer wavelengths compared to light waves.
Similarities between AM and FM signals:
- Both are used for broadcasting radio signals.
- Both are forms of modulation.
- Both can transmit audio information.
Differences between AM and FM signals:
- AM (Amplitude Modulation) varies the amplitude of the carrier wave, while FM (Frequency Modulation) varies the frequency of the carrier wave.
- AM signals are more susceptible to interference and noise, while FM signals are more resistant to interference.
- AM signals can travel longer distances compared to FM signals.