Ace Unit 1-3 Flashcards
What is anything that occupies space?
matter
What is the study of carbon containing compounds?
Organic Chemistry
What is the study of everything except carbon containing compounds?
Inorganic Chemistry
What is the study of chemical processes within living things?
Biochemistry
What studies the relation of chemical systems to physics?
Physical Chemistry
What is the study of the changes in the nucleus of an atom?
Nuclear chemistry
What is the process of using evidence from observations and experiment to create and explanation?
Scientific inquiry
What is the search for knowledge or facts?
pure science
What is using knowledge in a practical way?
Applied science
What is a repersentation of a particular situation using something else to represent it?
Model
What is a proposed explanation that is based on examination?
Theroy
What can be observed and measured?
Facts
What is a rule based on an observation of a process of nature that behaves the same way?
Law
A ____ is what happens.
A ____ is why.
Law
Theroy
List:
The seven steps of the scientific method.
Observe
Construct
Plan
Predict
Conduct
Record
Repeat
What is the trial during which all of the variables are unchanged?
Control
What are the factors that are not changed, in a controlled expirement?
Constraints
What is the factor in that can alter your experiment’s results?
variable
What is the variable that is changed in an experiment?
Independent
What is the variable that is influenced?
Dependent
What is using observations and facts to reach a conclusion about something not direcly witnessed?
Infer
What is always leading to a definite answer?
conclusive
What type of error affects the accuacy of an experiment?
Systematic
What type of error is an error in an experimental apparatus that affects percision?
Random
What are the numbers reported in a measurment?
Significant figures
What is a mathmatical meathod used to convert actual measured units into units needed?
Dimensional analysis
What is the realationship between two units?
Conversion factor
ratio is also correct
What is the distance between two points?
Length
meter
What is the amount of space something occupies?
Volume
liter
What is the amount of matter in a solid, liquid, or gas?
Mass
gram
What is the force exerted by a masses gravitational feild?
Weight
newton
mass and weight are not the same
What is the period between events?
time
What is the amount of mass unit per volume?
Density
grams
What is the measure of the average kenetic energy of the atoms or molecules in a system?
Tempature
Kelvin
tempature and heat are not the same
What is the total energy of the molecular motion in the subatance?
Heat
Calorie
tempature and heat are not the same
What is the point were molecules stop moving completely?
Absolute zero
Who was the first person to develop the first atomic theroy?
John Dalton
Who discovered the electron?
J.J. Thompson
What is energy that is transmitted in waves, particles, and rays?
radiations
What is the negatively charged elctrodes?
cathodes
What is the positivley charged elctrodes?
anode
What is the positivley charged center of the atoms?
nucleus
this contians the majority of the atoms mass
What is a vibrating distirbance through which energy is transmitted?
Wave
What is a wave’s vertical distance from the middle to the peak or trough?
amplitude
What is the number of times a wave passes through a specific point?
frequency
What are “packages” of EM radiation?
Quanta
What is the smallest quantity that can be emitted or absorbed in the form of EM energy?
Quantum
Planck’s Formula
E=hv
Photoelectric effect
Brighter light = more electrons ejected
What is an electron that can eject a particle of light?
photon
