Understanding Velocity-Time Graphs for Uniform Velocity
Uniform velocity means that an object's speed and direction remain constant. The velocity does not change over time.
Interpreting the Velocity-Time Graph
In a velocity-time graph:
- The vertical axis (Y-axis) represents velocity.
- The horizontal axis (X-axis) represents time.
For an object moving with uniform velocity, its velocity value stays the same at all points in time. On the graph, this is shown as a constant value on the vertical axis. A constant value over time is represented by a horizontal line.
Therefore, a straight line parallel to the time axis indicates that the velocity is constant, which is the definition of uniform velocity.
Matching Graph to Options
- A curved line or a sloping line indicates a changing velocity (acceleration or deceleration).
- A straight line parallel to the time axis indicates a constant velocity (uniform velocity).
This corresponds to Option 3.
Important Questions from Motion
The rate of change in the velocity of an object per unit time is referred as ________.
Which of the following is a correct equation of motion?
The acceleration of an object is said to be _______ when an object travels in a straight line and its velocity increases or decreases by an equal amounts in equal intervals of time.
What is the friction force employed between the two surfaces interacted in relative speed?
The rate of change of momentum of an object is
