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# speed/velocity/unbalanced forces

physical science
by

## Aaron Hutter

on 28 March 2017

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#### Transcript of speed/velocity/unbalanced forces

physical science
motion
speed
velocity
unbalanced forces
motion - a change in
position over time
position - the location
of an object
velocity - the speed of an
object in a particular
direction
speed - the distance traveled
divided by the time interval
which the motion occurred
reference point - a location
to which another location
is compared
vector - a quantity that has
both size and direction
UNBALANCED FORCES
contact force - friction between objects
are touching each other
ex. friction
inertia - the tendency of an object
to resist a change in its motion
force at a distance - force that affects
objects that are not in contact with
one another
ex. magnets
push/pull - when working together
in the same direction the forces combine

when working in opposite directions
they work against each other
unbalanced forces - the combination
of all the forces acting on the objects
average speed - a way to calculate the
speed of an object that is not moving
at a constant speed
acceleration - the rate at
which velocity changes
centripetal acceleration - acceleration
in a circular motion
force - a push or pull
applied to an object
net force - the combination of all
forces applied to an object
measured in Newtons ( N )
gravity - a force of attraction between
objects due to their mass
it is a noncontact force
9.8 m/s2
orbit - when an object
travels around another
object
free fall - when gravity is pulling an
object down and no other forces are
acting on it
fluid - any material that can flow
and takes the shape of the container
pressure - the measure of how much
force is acting on an area

pascal - the SI unit
for pressure

atmospheric pressure - the pressure caused by the
weight of the atmosphere.
it is exerted on everything
on earth, including us

bouyant force - the pressure that fluids exert
against the bottom of an object
it is an upward force that fluids exert on
all matter

speed = distance / time
momentum = p=mv
distance = speed * time
time = distance / speed
acceleration = final speed -initial speed
time
Full transcript