* Acceleration is about changes in velocity, not just speed. Velocity includes both speed and direction.
* An object can change direction while maintaining constant speed. Think of a car going around a circular track at a constant speed. Even though the car's speed is constant, its direction is constantly changing, meaning it is accelerating.
Examples:
* Circular motion: A satellite orbiting Earth at a constant speed is constantly accelerating towards the Earth's center due to its changing direction.
* A ball thrown horizontally: The ball's speed may be constant, but its direction changes due to gravity, causing it to accelerate downwards.
Key point: Acceleration is not necessarily about getting faster; it's about a change in velocity.
