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31 Cards in this Set

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  • Back
chemistry
the scientific study of matter
physics
the scientific study of energy
science
a structured approach to understanding the world around us
hypothesis
a proposed explanation that is tested by means of an experiment
theory
a hypothesis that has been repeatedly tested
law
a theory that has been repeatedly tested
velocity
speed and direction
acceleration
the time rate at which velocity changes
force
a motivation to move or to change motion
inertia
the tendency of an object in motion to remain in motion, or if it is at rest, to stay at rest
mass
the amount of matter an object contains
friction
the resistance to motion caused by the rubbing of surfaces against one another
work
the use of force to move something over a distance
power
the rate at which work is done
energy
the ability to do work
potential energy
the energy stored in an object as the result of the height it has been raised above the ground
kinetic energy
energy of motion
temperature
a measure of how hot or cold an object is
heat
energy transfer doe to a temperature difference
conduction
transfer of heat between objects that are connected by a solid
convection
transfer of heat by movement of material from a hot region to a cold region
radiation
transfer of heat by means of electromagnetic waves
thermodynamics
the study of the movement of heat
matter
anything that has mass and occupies volume
volume
the amount of space something takes up
weight
a force defined as mass times the accelerationcaused by gravity
momentum
The product of the mass times the velocity of an object
chemical properties
properties that, if changed, result in the formation of a different kind of matter
physical properties
properties, that, if changed, do not fundamentally change the type of matter
chemical change
change that results in a different type of matter
physical change
change that results in a change of state or of some other physical property