Chap 2 - 1DM Flashcards
xf
final position
vy
velocity in y direction
Instantaneous acceleration
The acceleration at a single instant in time.
speed
how fast an object is travelling (independent of direction)
dx
a really really small change in x






xo
position at time = 0




uniform linear motion
traveling at a constant velocity (in a line)
Linear Motion

Motion along a line

instantaneous velocity
velocity at a single instant of time
vx
velocity in x direction


Inclined plane
a flat surface that is on an angle.
uniform motion
traveling at a constant velocity (in a line)


uniformly accelerated motion
motion with a constant acceleration



average acceleration


turning point
the point where an object changes direction. At this point, the instantaneous velocity will equal zero.












distance
How far you have travelled
the slope of a y/t graph is equal to the
velocity in the y direction
t
time
kinematics
The study of motion


the area under an v/t graph is equal to the
change in position
dy
a really really small change in y


The derivative of a sum is equal to the
sum of the derivatives










the slope of an x/t graph is equal to the
velocity in the x direction


dt
a really really small change in time


displacement
how far you are from where you started




The area under an a/t graph is equal to the
change in velocity



instantaneous acceleration

the derivative of x with respect to t
free fall
moving under the influence of one and only one force … gravity


g
free fall acceleration

“limit as delta t goes to zero”
what happens when the change in time gets really, really small
Vector or Scaler?
VELOCITY
Velocity is a vector
Vector or Scaler
SPEED
Speed is a scaler
A ____________ contains both magnitude and direction.
vector
Constant Velocity
Traveling in such a fashion that you are not speeding up, slowing down, or turning.
Constant Speed
Traveling in such a fashion that you are not speeding up or slowing down.
(Turning would be allowed as long as you maintained your speed)
In both of our models so far,
(Constant Velocity and Uniform Linear Acceleration)
the direction of the force is…
Perfectly parallel to the direction of motion.
(Either in the same direction or in exactly the opposite direction)