chapter 5 test Flashcards
these describe a substance without reference to any other substance. EX: weight, volume, color, boiling point and melting point
Physical Property:
describe the behavior of a substance when it reacts or combined with another substance. EX: when wood burns, or when a test is done that changes colors to react
Chemical property:
describe the two theories of light
light is a continuous wave
light is a stream of discrete energy particles
Light as a wave has two distinct properties. name them….
Frequency and wavelength
the number of crest passing any one point per unit of time
Frequency -
the distance from crest to crest
Wavelength -
light can be split into its components ( usually using a glass prism).
dispersion
When light passes through objects, it can slow down, and therefore the light bends.
refraction
describe coherent radiation,
Scientist can force the wavelengths to be sync and is how we produce lasers
As long as light is traveling through space, its behavior can be described as a
wave.
Light energy parcels are called .
Photons
describe spectrophotometry,
which is used to determine what wavelengths a substance absorbs and does not.
is the amount of matter in a substance
Mass
is the force with which gravity attracts a body
Weight
difference between weight and matter
mass is the amount of matter in a substance
Weight is the force with which gravity attracts a body