All physics formals A-z
Firstly, physics is that branch of pure science that deals with the related between matter and energy.
OR
PHYSICS is a pure science that deals with the behaviour of matter and energy and how it relates with other physical properties.
Below are all physics formula you must know before you excel as a physician or physicist.
1. FORCE : force is act which changes the state of rest of a body or it's motion in a straight line .this definition simply tells you that in every action on the surface of the earth there is force applied on it that made it to be so.
Let's concentrate in the formula of force.
Force F= mass x acceleration.
And the unit of force is Kgms-2
2.Mass= weight (w)/g
g simply means acceleration due to gravity so any where you see g in physics formula know it is earth gravity which is always 10m/s2 ,as a good physics whether your tutor or examiner give you hints on the questions given to you or not know from to day acceleration due to earth gravity is equal to 10 metre per second square. Is that clear? Okay let's continue.
3 .Acceleration_many mistake this to speed that's why you see some driver who drive on high speed when you ask them they will say wow! I gotta the car accelerated. Capital No ! .Acceleration is change in velocity with time .for instance if a car was on high speed as high as 180 km per minutes from point A__________________________B there is no acceleration at all . But if a car Move in high speed from point A to B and in another direction to point C the car said to be accelerated despite the speed ,the speed can be uniform or not so, far there is a change in direction of the moving object acceleration occurs.
Acceleration ,a = change in velocity/
Time taken.
Or
Position change in velocity/Time taken .
A= v-u/t
SI Unit of acceleration= m/s2
Equations of uniformly Accelerated motion_
V=u+at
S=ut+ 1/2at2
V2 =U2+2as
4. Velocity _ this is the rate at which displacement changes with time in a specified direction.
Velocity, v = Displacement/Time
5. Speed: this is the rate of change of distance with time.
Speed v, =Distance (d)/Time (t)
Average Speed = Total Distance covered/Time taken
Actual Speed= instantaneous speed/short interval of Time
Motion__An object said to be in motion when the space generally influence by the action of earth gravity and air resistance.
The general equation of motion
V=u+-gt
H=ut+-1/2gtsqr
V2=u2+-2gh
Hints: v= velocity
H= height
g = acceleration due free fall
Or earth gravity which is
Equal to 10m/s(metre per second square)
Projectile motion_ A body or an object said to be projectile when it is launched into the atmosphere without being disturbed by air resistance or gravitational pull
Or when a body move along a curved path is called projectile.
Formula for projectiles
Time taken to reach maximum height
t= usinteta / g
Maximum height, H= Usquare sinteta/2g
Time of Flight, 2t= T= 2U sinteta/g
Range,R= Usquaresin2teta/g
Maximum Range, Rmax= Usquaresinteta/g
6. Momentum_ this is product of body's mass and its velocity.
Momentum(m) = mass x velocity
SI unit is kgms-1
Rate of change of momentum= change in momentum/time
= mv-mu/t
WORK ,ENERGY AND POWER
WORk _ this is product of force and distance moved in a direction.
Work ,w= force × distance
SI unit of work is joule
ENERGY_____ this is capacity or ability to do work .
Kinetic energy_this is energy due to motion.
Kinetic energy K.E = 1/2mvsquare
Change in kinetic energy = 1/2mvsqr-1/2musqr
=1/2m(vsqr-u)sqr
Potential energy__ this is the energy due to it's virtue of position.
Potential energy P.E=weight of a body × height.
that's P.E = mgh.
Power__this is the rate of doing work or transfer of energy.
Power= work done/time taken
= energy transferred/time
Power, P= F×S/time =mgh/t=1/2mvsqr/t
SI unit of power is watts.
1 kilowatts, KW= 1.34 H.P
1 horse power (H.P) = 746Watts
WAVE__This is the disturbance which transfers energy from one point to another through the help of medium with the average position of the particles of the medium remaining the same.
Terms used in describing a wave_
Frequency (f) = 1/time
Wave length(^) =X/N-1
Wave Speed= Distance/time
= wavelength/time
SI unit of wavelength is Metre . while frequency is Hertz.
Velocity of wavelength v= frequency ×wavelength.
Progressive wave equation__y=a sin(betaT-alpha)
Where beta=2Ï€f=2Ï€v/wavelength.
When wave is travelling in opposite direction equation will be y=a sin2Ï€(t/T+X/wavelength)
The general progressive wave equation is y=a sin(2Ï€t/T-2Ï€x/wavelength)
Stationary wave equation is y=a sin 2Ï€t/T- cos 2Ï€×/wavelength.
Mirror Formula__ I/v+1/u=1/f
Where v= image distance from pole
U= object distance from pole
F= focal length= r/2
CAPACITOR__ This is a condenser used in storing electric charges
Capacitor in parallel= Csub1 Csub2/Csub2+Csud1
Capacitor in series = 1/C= 1/C1+ 1/C2+1/C3
Where, C is the effective capacitance.
The energy stored= 1/2CVsqr.
Current, I = Quantity of charge /time
I= Q/t
Electric Energy = Quantity of electricity/potential difference
E=Qv
While Q= It
Therefore E= IVt
Resistance of a wire (R) = (mc+H)teta/Isqrt
Table of contents:
1 : All sports bet symbols and meaning A-Z
2: How to unlock all Android Phones in a minutes
3: All you need to know about federal universities
4 All physics laws you need to know
Firstly, physics is that branch of pure science that deals with the related between matter and energy.
OR
PHYSICS is a pure science that deals with the behaviour of matter and energy and how it relates with other physical properties.
Below are all physics formula you must know before you excel as a physician or physicist.
1. FORCE : force is act which changes the state of rest of a body or it's motion in a straight line .this definition simply tells you that in every action on the surface of the earth there is force applied on it that made it to be so.
Let's concentrate in the formula of force.
Force F= mass x acceleration.
And the unit of force is Kgms-2
2.Mass= weight (w)/g
g simply means acceleration due to gravity so any where you see g in physics formula know it is earth gravity which is always 10m/s2 ,as a good physics whether your tutor or examiner give you hints on the questions given to you or not know from to day acceleration due to earth gravity is equal to 10 metre per second square. Is that clear? Okay let's continue.
3 .Acceleration_many mistake this to speed that's why you see some driver who drive on high speed when you ask them they will say wow! I gotta the car accelerated. Capital No ! .Acceleration is change in velocity with time .for instance if a car was on high speed as high as 180 km per minutes from point A__________________________B there is no acceleration at all . But if a car Move in high speed from point A to B and in another direction to point C the car said to be accelerated despite the speed ,the speed can be uniform or not so, far there is a change in direction of the moving object acceleration occurs.
Acceleration ,a = change in velocity/
Time taken.
Or
Position change in velocity/Time taken .
A= v-u/t
SI Unit of acceleration= m/s2
Equations of uniformly Accelerated motion_
V=u+at
S=ut+ 1/2at2
V2 =U2+2as
4. Velocity _ this is the rate at which displacement changes with time in a specified direction.
Velocity, v = Displacement/Time
5. Speed: this is the rate of change of distance with time.
Speed v, =Distance (d)/Time (t)
Average Speed = Total Distance covered/Time taken
Actual Speed= instantaneous speed/short interval of Time
Motion__An object said to be in motion when the space generally influence by the action of earth gravity and air resistance.
The general equation of motion
V=u+-gt
H=ut+-1/2gtsqr
V2=u2+-2gh
Hints: v= velocity
H= height
g = acceleration due free fall
Or earth gravity which is
Equal to 10m/s(metre per second square)
Projectile motion_ A body or an object said to be projectile when it is launched into the atmosphere without being disturbed by air resistance or gravitational pull
Or when a body move along a curved path is called projectile.
Formula for projectiles
Time taken to reach maximum height
t= usinteta / g
Maximum height, H= Usquare sinteta/2g
Time of Flight, 2t= T= 2U sinteta/g
Range,R= Usquaresin2teta/g
Maximum Range, Rmax= Usquaresinteta/g
6. Momentum_ this is product of body's mass and its velocity.
Momentum(m) = mass x velocity
SI unit is kgms-1
Rate of change of momentum= change in momentum/time
= mv-mu/t
WORK ,ENERGY AND POWER
WORk _ this is product of force and distance moved in a direction.
Work ,w= force × distance
SI unit of work is joule
ENERGY_____ this is capacity or ability to do work .
Kinetic energy_this is energy due to motion.
Kinetic energy K.E = 1/2mvsquare
Change in kinetic energy = 1/2mvsqr-1/2musqr
=1/2m(vsqr-u)sqr
Potential energy__ this is the energy due to it's virtue of position.
Potential energy P.E=weight of a body × height.
that's P.E = mgh.
Power__this is the rate of doing work or transfer of energy.
Power= work done/time taken
= energy transferred/time
Power, P= F×S/time =mgh/t=1/2mvsqr/t
SI unit of power is watts.
1 kilowatts, KW= 1.34 H.P
1 horse power (H.P) = 746Watts
WAVE__This is the disturbance which transfers energy from one point to another through the help of medium with the average position of the particles of the medium remaining the same.
Terms used in describing a wave_
Frequency (f) = 1/time
Wave length(^) =X/N-1
Wave Speed= Distance/time
= wavelength/time
SI unit of wavelength is Metre . while frequency is Hertz.
Velocity of wavelength v= frequency ×wavelength.
Progressive wave equation__y=a sin(betaT-alpha)
Where beta=2Ï€f=2Ï€v/wavelength.
When wave is travelling in opposite direction equation will be y=a sin2Ï€(t/T+X/wavelength)
The general progressive wave equation is y=a sin(2Ï€t/T-2Ï€x/wavelength)
Stationary wave equation is y=a sin 2Ï€t/T- cos 2Ï€×/wavelength.
Mirror Formula__ I/v+1/u=1/f
Where v= image distance from pole
U= object distance from pole
F= focal length= r/2
CAPACITOR__ This is a condenser used in storing electric charges
Capacitor in parallel= Csub1 Csub2/Csub2+Csud1
Capacitor in series = 1/C= 1/C1+ 1/C2+1/C3
Where, C is the effective capacitance.
The energy stored= 1/2CVsqr.
Current, I = Quantity of charge /time
I= Q/t
Electric Energy = Quantity of electricity/potential difference
E=Qv
While Q= It
Therefore E= IVt
Resistance of a wire (R) = (mc+H)teta/Isqrt
Table of contents:
1 : All sports bet symbols and meaning A-Z
2: How to unlock all Android Phones in a minutes
3: All you need to know about federal universities
4 All physics laws you need to know
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