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Motion and Forces Vocabulary
matching descriptions from note packet.
24
Science
8th Grade
04/02/2012

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Term
Variable
Definition
a part of an experiment that can be changed or manipulated.
Term
Procedure
Definition
how an experiment is actually conducted.
Term
Data Table
Definition
a list of information from an experiment.
Term
Trial
Definition
one time an experiment is run.
Term
Experiment
Definition
a setup used to gather date and knowledge.
Term
Linear
Definition
a type of graph that looks like a straight line.
Term
Independant Variable
Definition
the variable on the horizontal axis (x-axis).
Term
Dependant Variable
Definition
the variable on the vertical axis (y-axis).
Term
Slope
Definition
the measure of the steepness of a line.
Term
Inertia
Definition
ability of an object to resist change of motion.
Term
Mass
Definition

(1.)the amount of matter in an object.

(2.)the measure of the matter in an object.

Term
Gravity
Definition
force pulling all objects toward each other.
Term
Net Force
Definition
total of all forces on an object.
Term
Force
Definition
an action that causes motion.
Term
Weight
Definition
the force of gravity on an object.
Term
Equilibrium
Definition
when all forces on an object are balanced.
Term
Heat
Definition
a product of friction.
Term
g
Definition

the force of gravity on an object.

(EX: 0g=no gravity)

Term
Momentum
Definition
measure of the product of an object's mass and velocity.
Term
kgm/sec
Definition
units for momentum.
Term
Law of Conservation of Momentum
Definition

states that momentum does not change in a closed system OR

MLVL=MRMR

Term
Newton's First Law of Motion
Definition
states that objects at rest stay and objects in motion stay in motion unless acted on by a net force.
Term
Newton's Second Law of Motion
Definition

states force equals mass times acceleration.

F=ma

Term
Newton's Third Law of Motion
Definition
states for every action there is an equal and opposite reacton.
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