Unveiling Motion in the Universe
IPS Terminal Velocity
Expedition 2:
A Universe of Motion
Terminal Velocity Expedition 2:A
Universe of Motion
•
Stage 1: On the Move
•
A
reference point
is the location from which
motion is studied.
Stage 1: On the Move
•
Motion can be measured in two ways,
distance
and
displacement
.
Stage 1: On the Move
•
Distance measures how far apart two objects
are from one another Distance is a scalar
quantity
Stage 1: On the Move
•
Distance is a scalar quantity because it only
describes the magnitude, or amount of a
measurement.
Stage 1: On the Move
•
Scalar
quantities are those that only have
magnitude.
Stage 1: On the Move
Some measurements have two characteristics:
magnitude and
direction
. These are called
vector
quantities.
Stage 1: On the Move
Vector
arrows are arrows that represent both
the magnitude and the direction of motion.
Stage 1: On the Move
Displacement
measures
the numerical difference
between the end (final)
position and start (initial)
position of an object, as
well as the direction that
the object traveled.
Stage 1: On the Move
Rate
is the amount of change in any
measurement over time
Stage 1: On the Move
•
Speed is the distance traveled over a given
period of time.
Instantaneous
speed is the
speed of an object at an exact moment in
time.
•
Speed is the distance traveled over a given
period of time.
Instantaneous
speed is the
speed of an object at an exact moment in
time.
Stage 1: On the Move
Calculating Speed
Average
Speed is the total distance traveled
divided by the elapsed time
Calculating Speed
(Average speed = total distance/total time)
Calculating Speed
•
Graphing Speed
•
Time
is plotted
on the x-axis and
distance is
plotted on the y-
axis.
•
The
slope
of the line on a graph of distance vs
time indicates how fast the object is going
Graphing Speed
Slope = rise/run
Graphing Speed
Slope = rise/run
Stage 1: On the Move
•
Speed is an example of a
scalar
quantity. It
only shows "how fast" the car is traveling, and
does not show in which direction the car is
traveling.
•
Velocity- A
vector
quantity
Stage 1: On the Move
•
Velocity- is a
is a
vector
quantity
Stage 1: On the Move
•
Velocity
is a
vector quantity
which represents
both the speed
and the direction
in which an
object is moving.
•
Acceleration
describes these changes in speed
and direction.
•
When the velocity of a moving object
decreases, it is said to
decelerate
, or undergo
negative acceleration.
•
Acceleration describes changes in direction as
well as those in speed. Starting acceleration is
zero. The time during which it moved is
plotted horizontally on the x-axis. Its velocity
is plotted vertically on the y-axis. The slope of
the line illustrates whether the object is
speeding up or slowing down.
•
So far we have explored
linear motion
, or
motion in a line or in one dimension.
•
_________________
is an object’s mass
multiplied by its velocity.
•
If the velocities of
two objects are
the same, the
object with more
mass will have
more momentum.
•
If the masses of
two objects are
the same, the
object with a
higher
velocity
will have more
momentum.
•
___________________
is an object’s
resistance to change in its state of motion.
•
The
law of conservation of momentum
tells us
that momentum is neither lost nor gained, but
rather is transferred between objects.
Delve into motion relative to reference points, scalar versus vector quantities, and interpreting motion graphs. Explore speed, velocity, acceleration, and momentum connections. Analyze crash tests with the Law of Conservation of Momentum. Understand instantaneous speed, concept of velocity as a vector quantity, and changes in speed and direction through acceleration.
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Presentation Transcript
IPS Terminal Velocity Expedition 2: A Universe of Motion
Discover how motion is relative to a standard reference point. Distinguish between scalar and vector quantities of motion. Explore the motion of an object by describing its position, direction, and speed. Create and interpret a variety of motion graphs. Discover how distance/displacement, speed/velocity, acceleration, and momentum are all connected by the rate of change. Apply the Law of Conservation of Momentum to analyze crash tests performed at the Insurance Institute for Highway Safety (IIHS).
Speed is the distance traveled over a given period of time. Instantaneous speed is the speed of an object at an exact moment in time.
Speed is the distance traveled over a given period of time. Instantaneous speed is the speed of an object at an exact moment in time.
The slopeof the line on a graph of distance vs time indicates how fast the object is going
Stage 1: On the Move Speed is an example of a scalar quantity. It only shows "how fast" the car is traveling, and does not show in which direction the car is traveling.
Stage 1: On the Move Velocity is a vector quantity which represents both the speed and the direction in which an object is moving.
Acceleration describes these changes in speed and direction.
When the velocity of a moving object decreases, it is said to decelerate, or undergo negative acceleration.
Acceleration describes changes in direction as well as those in speed. Starting acceleration is zero. The time during which it moved is plotted horizontally on the x-axis. Its velocity is plotted vertically on the y-axis. The slope of the line illustrates whether the object is speeding up or slowing down.
So far we have explored linear motion, or motion in a line or in one dimension.
_________________ is an objects mass multiplied by its velocity.
If the velocities of two objects are the same, the object with more mass will have more momentum.
If the masses of two objects are the same, the object with a higher velocity will have more momentum.
___________________ is an objects resistance to change in its state of motion.
The law of conservation of momentum tells us that momentum is neither lost nor gained, but rather is transferred between objects.
