Waves Flashcards
What are the the types of waves?
Mechanical and Electromagnetic
What is a mechanical wave?
A mechanical wave is a type of wave that necessarily needs a medium t go through ( or propagate).
What are the examples of Mechanical waves?
Sound, ripples, rope (string), spring
What is an electromagnetic wave?
An electromagnetic wave is type of wave that doesn’t necessarily need to go through a medium, but it can function with a medium
What are the examples of electromagnetic waves?
Radio wave, micro-wave, infra-red wave, visible light, ultra-violet wave, X-ray, and gamma-ray
Waves can be classified into how many classifications?
waves can be classified into 2 classifications. The first one being either Mechanical or electromagnetic, or being either transverse or longitudinal
What are examples of transverse waves?
Ripple, rope, spring
What considers a wave a transverse wave?
Whenever the direction of vibration is perpendicular to the direction of propagation
What considers a wave a longitudinal wave?
Whenever the direction of vibration is in parallel to the direction of propagation
All electromagnetic waves are…..
But not all…..
All electromagnetic waves are transverse waves, but not all transverse waves are electromagnetic
What is the first meaning of wavelength?
The distance travelled when one wave is getting complete
What is the second definition of wavelength?
The distance between the starting point from the first wave to the starting point of the second wave
What is amplitude?
The maximum distance between the level of starting point to the crest or trough
If the energy of the wave is absorbed by the medium then…..
Then the amplitude is getting decreased to reach zero
What is time period? What is it’s unit?
The time taken to have one complete wave. Seconds (s)
