acceleration

go back to kinematics =﻿Acceleration=

Acceleration is rate of change in velocity over time.

When car starts to move, starts to slow down, or when an object falls down, and even now on our bodies, acceleration occurs.

Acceleration can be found by the slope in veloicty versus time graph and it is expressed as: ms-2

For example, the acceleration of falling objects(free fall) can be expressed as 9.81ms-2

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=﻿Finding Acceleration=

Now, let's have a look on how to find the value of acceleration in velocity/time graph. Here, choose two coordinates. In this diagram, points (0,0) and (8,10) are chosen. slope can be found by y2- y1 / x2 - x1 10 - 0 / 8 - 0 = 5/4 Therefore, value of acceleration can be written as 1.25 ms-2

=﻿Acceleration in Real Life= Acceleration is used everyday in our real life. <[]> The camera-like object above is called 'Acceleration sensor'.

It measures velocity of a car over certain period of time. Then, it finds the acceleration of the car. If car runs above the standard speed, it takes a picture of the car.