acceleration in science definition
Since acceleration is a vector quantity, it has a direction associated with it. The direction of the acceleration vector depends on two things: 1  whether the object is speeding up or slowing down. 2  whether the object is moving in the + or-direction. Actually, it's your acceleration that is changing. Your speed and direction are changing, as the elevator moves faster or slower and goes up or down. So the changes in your weight shown on the scale actually are a measure of changes in your acceleration. acceleration. noun. 1. hastening, hurrying, stepping up (informal), expedition, speeding up, stimulation, advancement, promotion, spurring, quickening He has called for an acceleration of political reforms. acceleration - (physics) a rate of increase of velocity. natural philosophy, physics-the science of matter and energy and their interactions; his favorite subject was physics. angular acceleration - (physics) the rate of change of the angular velocity of a rotating body. acceleration. n. 1. the act of accelerating or the state of being accelerated. 2. (General Physics) the rate of increase of speed or the rate of change of velocity. Symbol: a. 3. (General Physics) the power to accelerate. An object with a constant acceleration should not be confused with an object with a constant velocity. Don't be fooled! If an object is changing its velocity-whether by a constant amount or a varying amount-then it is an accelerating object. And an object with a constant velocity is not accelerating. The data tables below depict motions of objects with a constant acceleration and a changing acceleration. → تَسْريع zrychleni zrychlení Acceleration beschleunigung επιτάχυνση aceleracion aceleración kiihtyvyys acceleration accélération ubrzanje accelerazione 加速 가속 versnelling akselerasjon przyspieszenie aceleracaoaceleraçãoускорениеacceleration การ เพิ่ม ความ เร็ว hızlanma. sự tăng tốc 加速 Definition: Acceleration is the rate of change of velocity as a function of time. It is vector. In calculus terms, acceleration is the second derivative of position with respect to time or, alternately, the first derivative of the velocity with respect to time. The SI units for acceleration are m / s 2 (meters per second squared or meters per second per second). The Meaning of Constant Acceleration. Sometimes an accelerating object will change its velocity by the same amount each second. As mentioned in the previous paragraph, the data table above show an object changing its velocity by 10 m/s in each consecutive second. 3. acceleration - (physics) a rate of increase of velocity. natural philosophy, physics-the science of matter and energy and their interactions; his favorite subject was physics. angular acceleration - (physics) the rate of change of the angular velocity of a rotating body.
A rate of increase of velocity.