Hand Guide for Physics!

As students, we all are having hard times with physics. There are several reasons for it. Nevertheless, mostly it is just because of the fact that we do not know the formulas. So let's get to know all the formulas today!

1) Speed*time=Distance

You can recall it with STuDy code.

2) Force=Mass*Acceleration

F=mA

3) Acceleration=change in velocity over time

delta V/t=A

4) Momentum=Mass*Velocity

And in terms of units, it is shown as kg m/s

5) Work=Force*distance

W=FD which may be shown as W=Fd

6) Kinetic energy=mass*square of velocity over 2

Which can be shown as KE=(mV^2)/2 or KE=(1/2)*m*V^2. The first materialization is more practical for exam usage.

7) Pressure=Force*Area and this equation is important in some exams as most practical physics is based on force.

P=FA

8) Gravitational Potential Energy=mass*gravity field*height of the object

GPE=mgh and it is important to use a Greek letter that looks like d instead of g.

9) Moment=Force*distance

10) Charge=Current*time

Q=I*t which is I*t=Q. You can use this Greenlandic code to recall, InuQTitut

11) Voltage=Current*Resistance

V=I*R

12) Power=Voltage*Current

P=I*V

13) Primary voltage/Secondary voltage=Primary turns/Secondary turns

Vp/Vs=Np/Ns. This formula is complicated and difficult and requires information on shape transformers. However, it is easier than it seems.

14) Refractive index=sin(Angle of incidence)/sin(Angle of Refraction)

n=sin(İ)/sin(R). This equation is also complicated and requires knowledge, however this topic is not very deep.

15) sine of Critical angle=1/refractive index

sin(C)=1/n

16) Efficiency=Useful energy out*100/Total energy in

Efficiency is also hard but it can be learnt in various ways.

17) Input power=Output power

VpIp=VsIs. It must be known that energy is always conserved and the formula of power is P=IV

18) Spring force=Stiffness*Extension

F=kx

19) Boyle's Law

k=Vp P1V1=P2V2

20) Snell's Law

n1sin(İ)=n2sin(R)

It is important to know all of these equations as professors from ages before managed to think about the numbers we cannot at the moment.

There are some additional formulas to these. For example:

Q=m*c*delta T,

Q=mL and

V=λf

These are just some of the formulas of course there are more, however, these are enough to build a strong knowledge of physics. I hope you will use these formulas at least once.