KINEMATICS Flashcards
is the study of motion.
We used the formulas from this unit to analyze the position, velocity, and acceleration of different objects
Kinematics
the change in the position of an object with respect to time
Velocity
the change in the velocity of an object with respect to time
Acceleration
There are three ways that an object can accelerate:
- Speeding up
- Slowing down
- Changing direction
Slope represented the change in position, or the velocity, of the object.
Position-Time Graphs
A straight line meant that the object travelled at a constant velocity.
Position-Time Graphs
A curved line meant that the object accelerated
Position-Time Graphs
Slope represented the change in velocity, or the acceleration, of the object.
Velocity-Time Graphs
A horizontal line meant that the object travelled at a constant velocity.
Velocity-Time Graphs
A non-horizontal, straight line meant that the object accelerated
Velocity-Time Graphs
The highest point of a projectile
This point is crucial in analyzing the projectile motion of different objects.
the object momentarily comes to a stop, so the velocity is 0 m/s.
apex
For our purposes, we say that the time it takes for an object to reach this point (tapex) is one-half the total time for the object to go up and come back down.
tapex
the object will accelerate because of the influence of gravity
This is why acceleration is equal to -10m/s^2
free-fall
