Zusammenfassung der Ressource
Describing Motion
- Distance,
time &
speed
- Distance
- length of
the path
travelled
- Time
- interval
of
change
- Speed
- distance
travelled
during a
unit time
- Graphing
motion
- Motion graphs are
plotted on
Cartesian planes
- Axis
- dependent axis
- distance
or
speed
- independent axis
- time
axis
- Scale
- value represented by
the distance between
marks on an axis
- Distance
vs Time
- straight line
indicates
constant
speed
- gradient
gives the
speed
- Speed
vs
Time
- gradient
gives the
acceleration
- Relative
motion
- objects
traveling in
the same
direction
- magnitude of
relative
velocity is less
than velocity
of both objects
- magnitude of the
relative velocity is
given by the
difference between
the velocities of the
two objects
- objects
traveling in
opposite
direction
- magnitude of
relative
velocity is
greater than
the velocity of
both
- magnitude of the
relative velocity
is given by the
sum of the two
velocities
- relative velocity is equal to
(vel of object - vel of ref point)