print("""hello my name is Aanya Sancheti and i am in grade 10.
My favourrite subject is physics. I love reading and dancing in my free time.
I recently learnt how to code and now this has also become one of the things i love to do in my free time.""")
print("""I am writing my IGCSE board exams this year and so i came up with a plan to make a formula table.
In this formula table you can find out any formulas for various diffrent topics.""")
print("_________________________________________________________________________________________________________")
print("""1.Average speed
2.Density
3.Weight
4.Moment
5.Force
6.Velocity
7.Acceleration
8.Momentum
9.Pressure
10.Power
11.Kinetic energy
12.Gravitational potential energy
13.Work done
14.Centripetal force
15. Hookes law
16.Law of equilibrium
17.Law of conservation of energy
18.Specific heat capcity
19.Thermal capacity
20.Specific latent heat of fusion
21.Specific latent heat of vapourisation
22.Wave equation
23.Refractive index
24.Critical angle
25.Echo
26.Current
27.Ohms law
28.Voltage
29.Resistance in series
30.Resistance in parallel
31.Transformer
32.Resistivity""")
print("____________________________________________________________________________________________________")

Formula=input("Select a number from 1 to 32")
Checking=Formula.isdigit()
if(Checking==True):
    Formula=int(Formula)
    if(Formula==1):
        print("Average speed = distance travelled/Time")
    elif(Formula==2):
        print("Density = Mass/Volume")
    elif(Formula==3):
        print("Weight = Mass*Gravity")
    elif(Formula==4):
        print("Moment = Force*Displacement")
    elif(Formula==5):
        print("Force = Mass*Acceleration")
    elif(Formula==6):
        print("Velocity = Displacement/Time")
    elif(Formula==7):
        print("Acceleration = Final velocity - Initial velcity/time")
    elif(Formula==8):
        print("Momentum = Mass*Velocity")
    elif(Formula==9):
        print("""1)Pressure = Force/Area
        2)Pressure = density*gravity*height
        3)Pressure1*Volume1 = Pressure2*Volume2
        4)Pressure= Pressure/Temperature""")
    elif(Formula==10):
        print("""1)Power= Work done/Time taken
        2)Power= Energy transfer/Time taken
        3)Power= Current*Voltage
        4)Power= Current**2/Resistance
        5)Power= Voltage**2/Resistance
        6)Power= Energy/Time""")
    elif(Formula==11):
        print("Kinetic energy= 1/2(Mass*Velocity**2")
    elif(Formula==12):
        print("Gravitational potential energy= Mass*Gravity*Height")
    elif(Formula==13):
        print("Work done= Force*Distance")
    elif(Formula==14):
        print("Centripetal force= mass*Velocty**2/Radius")
    elif(Formula==15):
        print("Hookes law= Force*Extension")
    elif(Formula==16):
        print("Law of equilibrium= Force1*Distance1= Force2*Distance2")
    elif(Formula==17):
        print("Law of conservation of energy= Mass*Gravity*Height=1/2(Mass*Velocity**2")
    elif(Formula==18):
        print("Specific heat capcity= Total heat/Mass*Change in temperature")
    elif(Formula==19):
        print("Thermal capacity= Mass*Specific heat capacity")
    elif(Formula==20):
        print("Specific latent heat of fusion= Total heat/m is the mass of liquid change from ice")
    elif(Formula==21):
        print("Specific latent heat of vapourisation= Total heat/m is the mass of vapour change from liquid")
    elif(Formula==22):
        print("""1)Wave equation= frequency*Time
        2)Wave equation= 1/Time period of wave""")
    elif(Formula==23):
        print("Refractive index= sin(i)/sin(r)")
    elif(Formula==24):
        print("Critical angle= 1/Refractive index")
    elif(Formula==25):
        print("Echo= 2*Distance/Time for echo")
    elif(Formula==26):
        print("Current= Charge/Time")
    elif(Formula==27):
        print("Ohms law= Voltage= Current*Resistance")
    elif(Formula==28):
        print("Voltage= Energy/Charge")
    elif(Formula==29):
        print("Resistance in series= Resistance1+Resistance2+Resistance3")
    elif(Formula==30):
        print("Resistance in parallel= 1/Resistance1 + 1/resistance2 + 1/Resistance3")
    elif(Formula==31):
        print("Transformer= Voltage primary/Voltage secondary=Number of turns in primary coil/Number of turns in secondary")
    elif(Formula==32):
        print("Resistance= Resistivity*(length of a resistor/area of cross-section")
    else:
        print("Please choose a number between 1 to 32 ONLY")
else:
    print("Please enter numbers only")