Vocab
Vector
What is a quantity that has both magnitude and direction?
The quantities that can be represented in graphs.
What are position, velocity, and acceleration?
A cat moves 3 meters to the right, turns around, and moves 5 meters to the left. How far did the cat travel in total?
-2 meters, or two meters to the left.
A ball is thrown up into the air at a speed of 4m/s. If it's horizontal velocity is 2m/s, what is its vertical velocity?
the square root of 12 or 3.464m/s
Change in velocity is equal to...
at (acceleration x time)
Displacement
What is the total change in an object's position over a time interval?
The slope of a position vs time graph
What is velocity?
A person begins their run accelerating at a rate of 5m/s2. However, they are soon tired and begin to slow down at an acceleration of -3m/s2. What is the total change in acceleration?
-8m/s2
Change in position is equal to...
v0t + 1/2at2
Velocity
What is the average change in position of an object divided by the time interval?
The slope of a velocity vs time graph.
What is acceleration?
V2 is equal to...
v02 + 2a(x - x0)
Acceleration
What is the average change in velocity of an object divided by the time interval?
The area under the curve of a velocity vs time graph.
What is displacement?
Free Fall
What is the nature of an object when the only force acting on it is the force of gravity? In such cases, the acceleration of the object is about -10m/s.
The area under the curve of an acceleration vs time graph.
What is total change in velocity?