physics quiz one dimensional motion
graphically
how can velocity be interpreted?
speed
how far you go in an amount of time
down or left
in what directions is velocity negative?
up or right
in what directions is velocity positive?
small time interval near that instant
instantaneous velocity
vector
is displacement a scalar or vector?
scalar
is speed scalar or vector?
vector
is velocity a scalar or a vector?
no
is velocity the same as speed?
car's speedometer, slope of that segment of a graph
name two examples of instantaneous velocity.
does not have a direction
scalar
instantaneous velocity
small time interval near that instant
how far you go in an amount of time
speed
velocity
the speed of an object in a particular direction
has a direction
vector
the speed of an object in a particular direction
velocity
negative
velocity going down or left is ________
positive
velocity going up or right is _________
distance-time graphs
velocity graphs are aka...
change
what does the delta (𝚫) symbol mean?
y-axis
what is the dependent variable of a velocity graph?
xf-xi (final-initial position)
what is the formula for displacement?
x-axis (time)
what is the independent variable of a velocity graph?
speed = distance/time
what is the speed formula
velocity=displacement/time
what is the velocity formula
(delta) v = (xf-xi)/(tf-ti)
what is the velocity formula (in symbols)
time (independent variable)
what is the x-axis of a velocity graph?
dependent variable, dependent depends on independent
what is the y-axis of a velocity graph?
distance speed time triangle
what is this
one dimensional motion
-simplest form of motion -straight line -takes place over time and depends on the frame of reference (specific location for objects)
simplest form of motion, takes place over time and depends on the frame of reference
define one dimensional motion
takes place over time, depends on frame of reference
describe how one dimension takes place
change in position
displacement
positive or negative
displacement can either be __________ or __________
up, down, right, left
displacement can include which directions?
average velocity
displacement divided by the time interval
a scalar quantity that refers to "how much ground an object has covered" during its motion
distance
velocity graphs
distance-time graphs are aka...
no
does displacement always equal the distance traveled?
scalar
does not have a direction
no
does speed have direction?
yes
does velocity have direction?
straight line
example of one dimension
x
for the displacement formula, what variable letter is used?
a specific location for objects
frame of reference
vector
has a direction
yes
can displacement sometimes equal the distance traveled?
displacement
change in position
displacement
________ can either be positive or negative.
distance
a scalar quantity that refers to "how much ground an object has covered" during its motion
frame of reference
a specific location for objects
displacement divided by the time interval
average velocity
