Motion

Definition

Motion is the change in an object's position over time. It is described by parameters like displacement, velocity, and acceleration.

5 Must Know Facts For Your Next Test

1. Projectile motion involves two components: horizontal and vertical motions, which are independent of each other.
2. The only force acting on a projectile in free fall is gravity, assuming air resistance is negligible.
3. The horizontal component of a projectile's velocity remains constant throughout its flight.
4. The vertical component of a projectile's velocity changes at a constant rate due to the acceleration caused by gravity.
5. The trajectory of a projectile follows a parabolic path.

Review Questions

Related terms

Displacement:

Displacement refers to the change in position of an object from its initial point to its final point.

Velocity:

Velocity is the rate at which an object changes its position. It has both magnitude and direction.

Acceleration: \text{Acceleration} is the rate at which an object's velocity changes over time; it can occur as a result of changes in speed or direction.