Physics 2 Kinematics review
Kinematics
Describes motion while ignoring the external agents that might have caused or modified
the motion
For now, will consider motion in one dimension
Along a straight line
Motion represents a continual change in an object
Physics 2 average speed review
Average Speed
Speed is a scalar quantity.
Has the same units as velocity
Defined as total distance / total time:
The speed has no direction and is always expressed as a positive number.
Neither average velocity nor average s
Physics 2 alternative review
Alternative Representations
Using alternative representations is often an excellent strategy for understanding a
problem.
For example, the car problem used multiple representations.
Pictorial representation
Graphical represent
Physics 2 operations review
Operations with Significant Figures Multiplying or Dividing
When multiplying or dividing several quantities, the number of significant figures
in the final answer is the same as the number of significant figures in the quantity
Physics 2 slopes review
A Note About Slopes
The slope of a graph of physical data represents the ratio of change in the quantity
represented on the vertical axis to the change in the quantity represented by the
horizontal axis.
The slope has units
Unless
Physics 2 quiz 2 review
Kinematics
Describes motion while ignoring the external agents that might have caused or modified
the motion
For now, will consider motion in one dimension
Along a straight line
Motion represents a continual change in an objects po
Physics 2 Velocity review
Model: A Particle Under Constant Velocity
Constant velocity indicates the instantaneous velocity at any instant during a time
interval is the same as the average velocity during that time interval.
vx = vx, avg
The mathematical r
Physics 2 velocity as a constant review
Constant Velocity
Images are equally spaced.
The car is moving with constant positive velocity (shown by red arrows
maintaining the same size).
Acceleration equals zero.
Acceleration and Velocity, 3
Images become fa
Physics 2 quiz 1 review
Instantaneous Acceleration graph
The slope of the velocity-time graph is the acceleration.
The green line represents the instantaneous acceleration.
The blue line is the average acceleration.
Graphical Comparison
Given the displace