Velocity, Distance, Time Flashcards
Average Velocity
The physical significance of the slope of a distance-time graph
Velocity formula
Change in time
Magnitude
how large something is
Speed vs velocity
Speed is a scalar quantity
Velocity is a vector quantity
Scalar Quantity
has only a magnitude
EX: 10 m/s
Vector Quantity
has both a magnitude and direction
EX: 10 m/s, north
How do you know slope is constant?
graph has a straight line
If slope is constant
velocity is constant
If slope is positive
Forward motion
If slope is 0
velocity is 0
Distance vs Displacement
Distance: scaler quantity
(To find total up how much you moved)
Displacement: vector quantity
(Difference of your starting place and where you ended up)
What is acceleration
A change in velocity
Unit of acceleration
m/s^2
Acceleration formula
Slope
Change in velocity
______________
Change in Time
The steeper the slope…
The larger the acceleration
The area under the curve =
The total distance traveled
Instantaneous Velocity
Velocity at a specific moment in time
How to find instantaneous velocity on a d-t graph?
Find the slope of the line on the graph using points one second before and after the time indicated
Finding instantaneous velocity on a v-t graph?
Just read the graph!
What does the area under the graph equal?
-Change in velocity
How to get the area
- Get the coordinates
- Multiply them
- Add the two together!
