Nature Of Light Notes Flashcards
The act or process of deriving a conclusion based solely on what one already knows
Interference
Data collection method used to obtain detailed information about a situation or event
Observation
A pattern plan or representation or description design to show the main object or workings of an object system or concept
Model
What are laws?
They concise general statements about how nature behaves, they are summary of the results of our observations
What are theories?
Once enough observations and laws fall to place these observations and laws become a theory, a theory provides a general explanation for observations in his created to explain these observations
What is the scientific method?
An orderly and systematic approach, gather knowledge
A declaration of conviction, consisting of a sentence of the type I know that or I believe that
knowledge claim
Theories that have a little supporting evidence
Speculative theories
Complex explanatory system that may include presuppositions and miracle evidence, novel, predictions, models, and scientific laws
Robust theory
Consequences deductible from the theory should agree with existing experiments and observations
Accuracy
The theory should be consistent with itself, and other currently accepted theories in other words of theory should not contradict itself or accepted theories
Consistency
The consequences of a theory should extend for beyond the particular observation laws it was initially designed to explain.
Scope
A theory should bring order to phenomena that in its absence could be individually, isolated, and confused
Simplicity
What scientist, combined electricity, magnetism, and light into one theory called the electromagnetic theory of weight
Maxwell
The ratio of speed of light and a vacuum to speed in a given material is called the
Index of refraction
The ratio of speed of light and a vacuum to speed in a given material is called the
Index of fraction
When light passes from one transparent medium into another with a different index of refraction part of it, incident light is reflected at the boundary. The remainder passes into the new media of the ray of light is incident at an angle that is not perpendicular the ray change the direction or _____ as it enters the new medium
refracts
The angle of a fraction depends on the speed of light in the two media, and on the incident angle. a mathematical relationship exist between this quantities known as
Snells law
The photo electric effect is the ejection of what from the surface of metal by light
Electrons
The particle theory of matter is an example of what?
A robust theory
What scientist attempted to measure the speed of light by measuring the time it took for light to travel unknown distance between two hilltops
Galileo
What scientist who is a Danish astronomer who made the first quantitive measurements of the speed of light by studying Jupiter’s moon
Roemer
What scientist express the speed of light as 16 2/3 earth diameters per second
Huygens
What scientist shone a light between the teeth of a rapidly rotating tooth wheel apparatus with a distant mirror
Fizeau
A French physicist who used a pendulum device to demonstrate the effect of the earth rotations on the speed of light
Foucault
An American scientist to improved on the work of earlier scientist by using an eight sided rotating mirror to calculate the speed of light
Michelson
What was Hugen’s principle?
States that every point on a wavefront can be considered as a point source of tiny secondary wavelets that spread out in front of the wave at the same speed as the wave itself. The surface envelope tangent to all the way, but constitutes a new wave front
Light travels in a straight line
Particle theory
Light will partially reflect and partially refract when light passes form one medium to another
Wave theory
Light dos not diffract around corners
Particle theory
Light acts like small, hard bits of matter that demonstrate perfect elastic collision
Particle theory
Raise of life will always been to the normal when they pass from a lesson to a more dense material
Wave theory
The speed of light will be faster in air than water
Wave theory
Particles of light are not all the same mass
Particle theory
The speed of light will be faster in water than air
Particle theory
