2019 Physics Formula Sheet PDF

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PHYSICS FORMULA SHEET Vectors are indicated by arrows. If only the magnitude of a vector quantity is used, the arrow is not used. Symbols of common quantities acceleration charge displacement electric current

G a q G s I

G F

force

Φ m G momentum p period T potential difference ΔV magnetic flux

f

frequency

mass

kinetic energy EK length l

electromotive force emf

G B

magnetic field

t G v wavelength

time

velocity

Magnitude of physical constants acceleration due to gravity at the Earth’s surface

g9.80 m s

constant of universal gravitation

G6.67  10

speed of light in a vacuum

c3.00  1

Coulomb’s Law constant

4 constant for the magnetic field around a conductor

–11

108

N m2 kg–2

ms

–1

h6.63  10 –34 J s

charge of the electron

e1.60  10 –19 C

mass of the electron

me9.11  10–31 kg

mass of the proton

mp1.67  10 27 kg

mass of Earth

5.97  1024 kg

mean radius of Earth

6.37  106 m

–2

9.00  109 N m2 C 0

0

2

Planck’s constant

–2

–7

2.00  10

T m A– 1

–

Topic 1: Motion and relativity

G G

G G v =0 v + at

G v velocity at time t

r T

G G F g m

2 G 1 G s =0 v t + at

2

v2 = v20 + 2 as vH = v cos v v

v=

F =G

angle to horizontal

v=

m1 m2 r2

rdistance between masses m1 and m2 Mmass of object orbited by satellite

GM r

rradius of orbit

2

E

G a

4 r3 GM

2

mv

G v 1

t

G p

l

c

2

Lorentz factor

reference

l

l0length in the moving object’s frame of reference

t 0

2 a= v r

2

t0time interval in the moving frame of

0

G F=

v

m0mass in the frame of reference

rradius of circle

This formula sheet will be provided in Physics examinations from November 2019.

where the object is stationary

Topic 2: Electricity and magnetism

F=

q1 q2

1 4

0

r

2

G G F E= q E=

G Eelectric field

1 4

0

mv r= qB

q r2

W =q V E=

charges q1 and q2

=

Wwork done

V d

= angle between field GBand G velocity v

F = qvB sin

rradius of circle

2 qB q B r 2m

E

rradius at which ions emerge from cyclotron

ddistance between magnetic field

JG G qE a m 0

rdistance from conductor

2 r

= angle between field G Band G current element Il

emf Vp Vs

t Np transformer coils

Ns

Topic 3: Light and atoms

Wwork function of the metal

W = hf0

d sin  m 

ddistance between slits angular position of mth maximum

EK

f0threshold frequency eVs

of electrons

Vsstopping voltage

minteger (0, 1, 2, …) y distance between adjacent

L d

y

minima or maxima

E

hf

max

p=

W

Lslit-to-screen distance

h

E

=

V potential difference across h 2

Eenergy

Quarks

Table of prefixes Prefix

Symbol

Value

tera giga mega kilo centi milli micro nano pico

T G M k c m  n p f

1012 109 106 103 102 103 106 109 1012 1015

femto

the X-ray tube

Quark

Symbol

Charge (e)

Up

u

23

Down

d

–1

s

–1

Strange

3 3

Charm

c

23

Top

t

23

Bottom

b

–1

3...