Motion graphs help us understand how an object moves over time. The three main types of motion graphs are:

• Displacement-Time Graphs
• Velocity-Time Graphs
• Acceleration-Time Graphs

1. Displacement-Time Graphs

These graphs show how the position of an object changes over time.

• A straight, sloped line indicates constant velocity.
• A horizontal line means the object is at rest.
• A curved line means the object is accelerating or decelerating.

2. Velocity-Time Graphs

These graphs show how the velocity of an object changes over time.

• A straight, horizontal line means constant velocity.
• A sloped line means the object is accelerating or decelerating (positive or negative gradient).
• The area under the curve gives the displacement.

3. Acceleration-Time Graphs

These graphs represent how the acceleration of an object varies with time.

• A horizontal line above the time-axis indicates constant positive acceleration.
• A horizontal line below the time-axis indicates constant negative acceleration (deceleration).
• The area under the curve gives the change in velocity.

Understanding motion graphs helps in interpreting and predicting the behavior of moving objects in physics problems.

Written by Thenura Wickramaratna