40 formulae (physics form4)

kalo ader silap or tkurg dharap tlg tegoq dan tambah

1-velocity..........v=s/t t=s/v s=vt

2-acceleration......a=(v-u)/t

3-linear motion (1) v=u+at (utk xdak s)

4-linear motion (2) s=[(v+u)/2]t (utk tadak a)

5-linear motion (3) s=ut+1/2at2 (kuasa 2) (utk tadak v)

6-linear motion (4) s=vt-1/2at2 (kuasa 2) (utk tadak u)

7-linear motion (5) v2 (kuasa 2)=u2 (kuasa 2)+2as (utk tadak t)

8-momentum.............................p=mv

9-elastic collision (yg lain)..........m1u1+m2u2=m1v1+m2v2

10-inelastic collision (yg sama).......m1u1+m2u2=(m1+m2)v

11-explosion...........................0=m1v1+m2v2

12-force...............................F=ma

13-impulse.............................Ft=m(v-u)

14-gravitational field strength (xjumpak formula dia)

15-weight .....................w=mg

16-work done...................w=Fs

17-kinetic energy..............Ek (k kecik ltaknya di tepi bawah E)=1/2mv2 (kuasa 2)

18-potential energy..........Ep (p kecik ltaknya di tepi bwh E)=mgh

19-power..........................P=Fv

20-force (utk elasticity).....F=kx

21-force constant....................................k=F/x

22-potential energy (for elasticity)..........Ep(p kecik ltaknya ditepi bwh E)=1/2Fx

23-change in momentum.........................=m(v-u)

24-increase in kinetic energy...................=1/2m(v2(kuasa2)-u2(kuasa 2))

25-pressure.............................................P=F/A

26-pressure (for liquid)............hpg

27-total pressure.....................Ptotal=Patm+hpg

28-pressure (for gas)...............Pgas=Patm-h

29-Pascal principle....................F1/A1=F2/A2 atau boley juga F1/F2=A1/A2

30-density................................=mass/volume

31-buoyant force (Archimedes principle)...........Fb(b kecik ltaknya ditepi bwh F)=pVg

32-specific heat capacity...................................Q=mc@ (@ tu theta)

33-Boyle's law...................................................P1V1=P2V2

34-Charles law..................................................V1/T1=V2/T2

35-Gay-Lussac's law..........................................P1/T1=P2/T2

36-refraction index........n=cv/cm (c is speed of light/v is vacuum/m is medium)

37-Snell's law................n=sin i/sin r

38-critical angle.............n=1/sin c

39-lens equation...........1/f=1/u+1/v

40-magnification............m=v/u

pergh....abes jugak aku 2lis....pc

skian trima kasihclap