This topic is probably one of the most important topic in physics.
Acceleration is defined as change of velocity over time.
Basically it measures how the velocity is changing for every second.
If positive acceleration, then the velocity is increasing. The the speed is going faster.
If negative acceleration, also called deceleration, then the velocity is decreasing. So the speed is becoming slower.
If zero acceleration, there are 2 possible scenarios.
a) No speed/velocity. Meaning that the object is not moving.
b) Constant velocity. Meaning the object is having the similar speed.
Formula:
a = v / t
unit = meter / second^2 or m/s^2
Note: v = velocity, t = time
Acceleration is a vector quantity.
So you need to know both the direction and the magnitude.
Check out this video to see the explanation:
You will realize that this topic is also applicable for SPM Additional Maths as well.
You can get your SPM Physics Notes for Form 4 Chapter 2 here:
All the best for your SPM Physics exam this year 😉😊
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