Difference between velocity and acceleration class 9

Let's understand the difference between velocity and acceleration are two key concepts in the study of physics and mechanics. They are closely related, but they have distinct differences. In conclusion, understandingn both concepts are important for a deeper understanding of physical phenomena, technology, and everyday life, as well as for problem-solving and career development in various fields.

Sachin drives to work everyday in his scooty. One day, he notices a KTM race past him. In order to catch up with him, he increases his throttle. Now he finds himself alongside the KTM. Sachin then becomes tired of chasing and decides to slow down his scooty; so he applies the brakes—gradually slowing down and coming to rest. In other words, one can say that Sachin has accelerated in the first case—increasing his speed. On the other hand, while slowing down, he has decelerated.

Difference between velocity and acceleration class 9

In this article, we shall take a look at the major differences between Acceleration and Velocity. Comparison Basis. It alludes to the speed of an object in a given direction. Acceleration implies any change in the velocity of an object with respect to time. Calculated With. What is its Nature? What is it? Rate of change of displacement. Rate of Change of Velocity. How fast is an object moving, and in which direction.

Speed is the distance travelled by an object in a given time.

Velocity and acceleration are the two key concepts which are always discussed while studying motion. Velocity can be understood as the speed of a moving body in a particular direction whereas acceleration is any change in the velocity of the object, with respect to time. Motion implies movement; it is the act of moving or more specifically, the change in position of the body, concerning time. Whenever you walk, run or drive you are actually in motion and not only this, flying of birds, swimming of fishes, flowing of water from the river, falling of leaves from trees, rotation and revolution of the earth, is also motion. For a layperson, these two terms are one and the same thing, but in physics, there are subtle differences between velocity and acceleration. Basis for Comparison Velocity Acceleration Meaning Velocity implies the speed of an object, in the given direction. Acceleration alludes to any change in the velocity of the object with respect to time.

An object is said to be accelerated if there is a change in its velocity. The change in the velocity of an object could be an increase or decrease in speed or a change in the direction of motion. A few examples of acceleration are the falling of an apple, the moon orbiting around the earth, or when a car is stopped at the traffic lights. Through these examples, we can understand that when there is a change in the direction of a moving object or an increase or decrease in speed, acceleration occurs. Acceleration is a vector quantity as it has both magnitude and direction. It is also the second derivative of position with respect to time or it is the first derivative of velocity with respect to time. Read More: SI unit of Acceleration. So can we have a situation when speed remains constant but the body is accelerated? Actually, it is possible in a circle where speed remains constant but since the direction is changing hence the velocity changes, and the body is said to be accelerated. The average acceleration over a period of time is defined as the total change in velocity in the given interval divided by the total time taken for the change.

Difference between velocity and acceleration class 9

Displacement is a vector quantity. It has both magnitude and direction. At first observe Picture-I. An object moves 3 metre from X to Y , then 4 metre from Y to Z. Now also observe Picture-II. Consider the following cases one by one — Case-1 : Object moves from A to B , here both linear distance covered and displacement is 30 metre. Speed is the distance covered by a moving object in a second.

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Whenever an object changes its velocity, it is said to be accelerating. Like velocity, acceleration is also a vector quantity, meaning it has both magnitude and direction. Acceleration may vary throughout an object's motion, requiring the consideration of instantaneous acceleration or average acceleration over specific intervals. It allows for precise calculations in sports, such as determining the speed of a baseball pitch or a sprinter's running speed. Acceleration implies any change in the velocity of an object with respect to time Calculated With Displacement Velocity What is its Nature? When the pebble is dropped, its initial speed is zero, when it hits the water, its speed increases due to the Earth's gravity. While velocity embodies the rate of change of displacement along with direction, acceleration signifies the rate of change of velocity, encompassing alterations in both speed and direction. Uniform acceleration implies a constant change in velocity, like an object in free fall. How fast the moving object's velocity changes with time. It has both magnitude and direction, with the magnitude representing the speed and the direction representing the direction of motion. Slope of the graph plotted between velocity on the vertical axis and the time on the horizontal axis is the velocity-time graph. It is a vector expression that has both magnitude and direction. Uniform Motion Constant velocity means steady speed in a straight line.

In this article, we shall take a look at the major differences between Acceleration and Velocity. Comparison Basis. It alludes to the speed of an object in a given direction.

Enroll Now. Mathematically, it can be expressed as,. They are related to each other through differentiation, as velocity is the derivative of position with respect to time, and acceleration is the derivative of velocity with respect to time. Galvanometer Working. Velocity plays a crucial role in calculating an object's momentum, while acceleration is vital in determining the net force acting on an object. Velocity is a crucial parameter in studying the laws of motion and understanding concepts like inertia and momentum. Velocity is nothing but the rate of change of displacement. Velocity measurements are crucial in fluid dynamics to analyze fluid flow rates and optimize processes like water distribution and ventilation systems. Difference between velocity and acceleration : Velocity is the rate of change of an object's displacement over time, indicating its speed and direction. View More View Less. It is a vector quantity, indicating both speed and direction. Test Series. Ravi Shekh Kumar August 18, at am. Select Center. Velocity is a fundamental concept in physics that measures the rate of change of an object's position concerning time.