B: Physics = Changes in Motion 1.5 Graphical Description of Accelerated Motion Flashcards
What does the slope of a velocity-time graph represent?
Acceleration
The slope indicates the rate of change of velocity over time.
How is acceleration calculated from a velocity-time graph?
Acceleration = Change in velocity / Change in time
This involves the difference between final velocity and initial velocity over the time interval.
In the equation for acceleration, what does ‘change in velocity’ represent?
Final velocity - Initial velocity
This quantifies how much the velocity has changed during the time interval.
In the context of acceleration, what is the ‘run’ in the slope calculation?
Change in time
This indicates the duration over which the velocity change occurs.
What is the definition of acceleration?
The change in velocity over a specific time interval
This is a key concept in understanding motion in physics.
True or False: A straight line on a velocity-time graph indicates constant acceleration.
True
A straight line means the velocity changes at a constant rate.
What are the two key variables involved in calculating acceleration?
- Change in velocity
- Change in time
These variables are essential for determining how quickly an object accelerates.
What is uniform acceleration?
Acceleration described by a sloping, straight line on a velocity-time graph
Uniform acceleration indicates a constant rate of change in velocity over time.
True or False: All non-uniform motion produces a velocity-time graph that looks the same.
False
Non-uniform motion can produce various types of velocity-time graphs.
What should be dropped when solving for time in the acceleration equation?
All vector notations
This is necessary because the multiplication or division of vectors goes beyond high school physics.
Fill in the blank: The techniques for rearranging equations can be applied to the _______ equation.
[acceleration]
Rearranging equations is a fundamental skill in solving physics problems.
What does a sloping, straight line on a velocity-time graph represent?
Uniform acceleration
This indicates that the object is accelerating at a constant rate.
What does negative acceleration indicate?
It indicates motion slowing down
Negative acceleration is represented by a velocity-time graph with a negative slope.
What type of graph can show negative acceleration?
A velocity-time graph
A negative slope in a velocity-time graph indicates negative acceleration.
Fill in the blank: Negative acceleration occurs when an object is _______.
[slowing down]
