Speed and velocity share many similarities, speed is a scalar property while velocity is a vector property. A vector is a scalar quantity with a direction attached to it.
Continue ReadingThe speed of an object refers to how fast an object is moving across a distance. It can be calculated by dividing the distance traveled by the time it took to travel it. Velocity includes both a speed and a direction. An example of an average speed during a trip would by 50 miles per hour while the corresponding velocity might be 50 miles per hour directly north. Speed and velocity are both the same only for a stationary object.
Learn more about Motion & MechanicsSpeed measures how fast an object is moving, whereas acceleration is how much the speed of an object changes during a specified period of time. If an object is speeding up, it has a positive acceleration, whereas an object slowing down has a negative acceleration.
Full Answer >Velocity is a vector since it is composed of a quantity of speed and a direction. Velocity is defined as the rate at which an object's position changes.
Full Answer >An object does not have a varying speed if its velocity is constant. A constant velocity implies that an object is moving in a straight line at an identical rate over time.
Full Answer >Acceleration is the rate at which an object changes its velocity -- for example, the increase in a skydiver's speed after he jumps out of an airplane. Acceleration is a vector quantity, which is a quantity that takes into account magnitude and direction.
Full Answer >