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Transcript
Motion and Speed
Notes
Motion is a change
in position relative
to another object.
Motion can be measured
by finding the distance
an object moves in a
given amount of time
which determines the
speed.
Speed is measured in
units of meters or
kilometers (distance)
and seconds or hours
(time).
The formula
for finding
speed is
distance
Speed= time
If a force is applied
to a moving object,
the object can speed
up, slow down or come
to a stop.
A force can also
change the
direction an
object is
moving.
When a force
changes the speed
and the direction an
object is moving we
use the term
velocity.
Velocity is speed
with direction.
Acceleration is
the term used to
describe when an
object changes its
speed &/ or
direction.
An object that is
falling to earth is
subject to a
change in
acceleration of
2
9.8 m/s due to
gravity.