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vocabulary
flash
21
Science
6th Grade
12/16/2012

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Cards

Term
distance
Definition
the length between two place
Term
position
Definition
the location of a object compared with things around it
Term
motion
Definition
a change in a objects position compared to fixed objects around it
Term
speed
Definition
how fast an objects position changes with time at any given moment
Term
velocity
Definition
a description of ant gining object speed and direction
Term
acceleration
Definition
a change in velocity ofan object over time
Term
force
Definition
any push or pull exerted by one object or another possibly causing change in motion
Term
contant force
Definition
a force that is exerted only when objects are touching
Term
net force
Definition
the combination of all forces acting on a object
Term
balanced force
Definition
forces that act toghether on a object without changing its motion
Term
unbalanced forces
Definition
forces that do not cancel each other out and that causes a object to change its motion
Term
gravity
Definition
forces of attraction among all objects
Term
friction
Definition
a force that oppposes the motion of an object in contact with a surface
Term
air resitance
Definition
the force that opposes the motion of a object
Term
elastic force
Definition
a force exerted by a material
Term
tension force
Definition
a pulling forced applied to an object that can make an object stretch
Term
newtons first law of motion
Definition
a physical law stating that an object at rest tends to stay at rest and a object moving in a straight line at constant speed tends to continue moving
Term
newtons second law of motion
Definition
a physical law that states that an objects accelaration depends on the objects mass and the amount of net force applied to it
Term
newtons third law of motion
Definition
a physical law that states that for every action their is an equal and opposite reaction
Term
action force
Definition
the initial push or pull of one object or another object
Term
reaction force
Definition
the push or pull of a second object back on the object that started the push or pull
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