* Velocity: This measures the rate of change of position and includes both speed and direction. For example, a car traveling at 60 mph to the east has a velocity of 60 mph east.
* Force: This is a push or pull that can cause a change in motion. It has both magnitude (how strong the push/pull is) and direction (the way it is being applied). For example, gravity is a force that pulls objects towards the center of the Earth.
* Acceleration: This is the rate of change of velocity. It includes both how quickly the velocity is changing and in what direction. For example, a car accelerating from 0 to 60 mph in 5 seconds has an acceleration in the direction of its motion.
* Electric field: This is a region of space where an electric charge would experience a force. It has both magnitude (strength of the force) and direction (the direction the charge would be pushed).
* Magnetic field: This is a region of space where a moving electric charge would experience a force. Like the electric field, it has both magnitude and direction.
Key takeaway: A scientific field quantity needs to have both a magnitude (how much) and a direction (which way) to be fully described.
