Waves Flashcards
Give samples of transverse waves.
light, water, strings
How do transverse waves move
Vibrations are at 90° to the direction of wave travel
Samples of longitudinal waves.
sound, slinky spring
How do longitudinal waves move?
Vibrations are along the same direction as wave travel
Characteristics of Waves
Waves carry energy from one place to another
What is Amplitude?
The distance from the middle to either the trough or peak
What is Wavelength?
The distance of one full cycle of a wave
What is frequency?
The number of waves that pass a point in 1 second
How to find wave speed?
Wave speed=Frequency*Wavelength
V(m/s)=f(hz)*λ(m)
How to find period using frequency?
T(s)=1/f(hz)
What is trought?
The lowest possition of the wave
What is crest?
The highest point of the wave
What are the most energetic of electromagnetic radiation?
- UV
- Xrays
- Gamma rays
How gamma rays are produced
Naturaly when nucleus of radioactive atoms decay
What is photon?
A photon is a packet of electromagnetic radiation