8.4.1 (V-T) (Term 1) Flashcards
Learning Objectives Describe the motion of an object by interpreting linear motion graphs (s-t, v-t, a-t) Calculate and interpret the intercepts and gradients of linear motion graphs (s-t, v-t, a-t)
What does a velocity-time (V-T) graph represent?
A velocity-time graph shows an object’s velocity as a function of time.
What does a horizontal line on a velocity-time graph indicate?
A horizontal line indicates constant velocity.
What does a straight sloped line on a velocity-time graph represent?
A straight sloped line represents constant acceleration.
How is acceleration calculated?
Acceleration is the change in velocity over time.
What does a positive slope on a velocity-time graph represent?
A positive slope represents positive acceleration.
What does a negative slope on a velocity-time graph represent?
A negative slope represents negative acceleration.
What do different slopes on a velocity-time (V-T) graph indicate about acceleration?
Positive slope = Positive acceleration
Zero slope = Zero acceleration
Negative slope = Negative acceleration
What does the area under the curve on a velocity-time (V-T) graph represent?
The area under the curve to the Y-axis represents the displacement of the object.
How can the area under the curve on a velocity-time graph be found?
The area can be found using simple geometry formulas.
What does the area under the velocity-time graph represent?
The area under the velocity-time graph gives the displacement of the object for the specified time interval.
What does the velocity-time graph look like for constant acceleration?
The velocity-time graph for constant acceleration is a straight line.
What does the slope of a velocity-time (V-T) graph represent?
The slope of a velocity-time graph represents acceleration, which relates to the acceleration formula.
What does a horizontal line on a velocity-time (V-T) graph indicate?
A horizontal line on a velocity-time graph means constant velocity.
What is the velocity of an object that isn’t moving?
If an object isn’t moving, its velocity is zero.
What does a positive slope on a velocity-time graph indicate?
A positive slope indicates the object is undergoing acceleration in the positive direction.
What happens if both the slope and velocity are positive?
If both the slope and velocity are positive, the object is speeding up.
What happens if the slope is positive but velocity is negative?
If velocity is negative, the object is slowing down, even with a positive slope.
What does the slope of a speed-time graph represent?
The slope of a speed-time graph represents acceleration.
What does a constant slope on a speed-time graph indicate?
A constant slope indicates constant acceleration.
What can the slope of a speed-time graph be?
The slope can be positive, negative, or zero.
What does the area under the curve on an acceleration-time (A-T) graph represent?
The area under the curve represents the change in velocity.
What does the “y” intercept on a velocity-time graph represent?
The “y” intercept equals the initial velocity.
