Exact Same Combined Effect

Intro

1. Vectors and Scalars

Verse

​Scalar:

A physical quantity that has magnitude (size) only and no specific direction (e.g., distance, speed, time, mass, temperature, energy).

Chorus

​Vector:

A physical quantity that has both magnitude and direction (e.g., displacement, velocity, acceleration, force, weight).

Verse

​Distance (d):

The total length of the path travelled by an object, regardless of direction.

Pre-chorus

​Displacement (\Delta \vec{x}):

The straight-line distance from the starting point to the final point, in a specific direction.

Chorus

​Speed:

How fast an object is moving, based on the distance covered over a time interval.

Verse

​Velocity (\vec{v}):

The rate at which an object changes its displacement; it includes both how fast the object is moving and the direction of motion.

Bridge

​Acceleration (\vec{a}):

The rate at which an object changes its velocity (speeding up, slowing down, or changing direction).

Outro

​Resultant Vector:

A single vector that has the exact same combined effect as two or more separate vectors acting together.