Motion is the movement of an object from one position to another. It can be described by its speed, direction, and acceleration.
Speed is the rate at which an object moves, while velocity is the speed and direction of an object's motion. For example, a car travelling at 60 miles per hour has a speed of 60 mph, but if it changes direction, its velocity will also change.
Acceleration is calculated by dividing the change in velocity by the time it takes for the change to occur. It is measured in units of distance per time squared, such as meters per second squared or miles per hour squared.
Yes, an object can have a constant velocity and still be accelerating if its direction of motion is changing. This is because acceleration is a vector quantity that takes into account both speed and direction.
Mass is the measure of an object's resistance to acceleration. The greater the mass, the more force is needed to accelerate the object. This means that objects with more mass will require more force to move at the same rate as objects with less mass.