Physics - Motion

Average speed is the total distance traveled divided by the total time taken. It is calculated using the formula: Average Speed = Total Distance / Total Time.

A graph showing an object returning to the start position typically has a line that slopes downward back to the origin on a position vs. time graph.

Acceleration is calculated by the change in velocity divided by the time taken for that change. The formula is: Acceleration = (Final Velocity - Initial Velocity) / Time.

A constant rate of motion is represented by a straight, diagonal line on a position vs. time graph, indicating uniform motion.

Average speed between two time intervals can be calculated using the formula: Average Speed = (Distance at Time 2 - Distance at Time 1) / (Time 2 - Time 1).

Negative acceleration, or deceleration, indicates that an object is slowing down. It occurs when the final velocity is less than the initial velocity.

An object is moving at a constant speed if the graph of its position vs. time is a straight line, indicating equal distances covered in equal time intervals.

Common units for speed include meters per second (m/s), kilometers per hour (km/h), and miles per hour (mph).

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Time is a crucial factor in calculating average speed, as it is the denominator in the average speed formula. Longer time intervals can lead to different average speeds.