The Power Of Waves Flashcards
What dose resistor mean
A electrical component that limits and regulates flow of electricity
What is a conductor ?
A substance that allows electrical charge carriers to move easily
What does voltage refer to
The potential difference difference in charge , between two points
What does Resistance refer to
The force that limits movement of electrical charge carriers
What does current refer to
The flow of electrons
What is Ohms law.
V=IR
Characteristics of a series circuit
1 pathway
Break in circuit = broken circuit
Easy to set up
Characteristics of a parallel circuits
Multiple pathways
Break in circuit
Harder to setup
What is Conduction
The process by which heat or electricity is directly transmitted through the material of a substance
What is convection
The movement of molecules due to temperature
What is radiation
The emission of energy as electro magnetic waves or as moving subatomic particles, especially high energy particles which causes causes ionization
What is particle theory
All mater consists of many very small particles which are constantly moving or in continental state of motion
Types of waves
Transverse
Longitudinal
List examples of transverse waves
Light and ocean waves
List examples of compression
Sound
What are sound waves
Vibrations are sent out which cause particles to hit each other
Speed of sound through solids
Very fast because atoms are very close to each other
Speed of sound through liquids
Middle-atoms are further away from each other
Speed of sound through gas
Gas: slow-atoms are far away from each other
Relationship for of frequency and pitch
Lower pitch= lower frequency
High pitch= high frequency
Places sound is used in real life
Music
Sonar
Radio
Uktrasound
What is the wavelength
The distance between two identical peaks
What is the frequency
The number of complete cycles per second
What is amplitude
The maximum distance moved from point on a vibrating body or wave measured from it’s equilibrium position
What is pitch
How high or low a note is played
What is compression
The area in a wave where the particles are closest together
The electromagnetic spectrum
Gamma Rays X-rays Ultraviolet Visible light Infrared Microwaves Radio
What does absorption mean
H
What does absorption mean
What does absorption mean the process by which one thing absorbs or is absorbed by another
What does scattering mean
When light or other energy waves pass through an imperfect medium
What does reflection mean
The throwing back by body or surface of light,heat, or sound without absorbing it
What is refraction
Being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density
What is the law of reflection
States that the incident ray, the reflected ray and the normal to the mirror all lie on the same plane
Why does refraction occur
Light follows the principle of least action which means it takes the future route which is to bend
