EXAMINATION DATA SHEET FOR THE PHYSICAL SCIENCES …

NATIONAL SENIOR CERTIFICATE: PHYSICAL SCIENCES: PAPER I ? DATA SHEET

Page i of ii

EXAMINATION DATA SHEET FOR THE PHYSICAL SCIENCES (PHYSICS)

TABLE 1 PHYSICAL CONSTANTS

NAME Acceleration due to gravity Speed of light in a vacuum Universal gravitational constant Coulomb's constant Magnitude of charge on electron Mass of an electron Planck's constant 1 electron volt

SYMBOL g c G k e me h eV

VALUE 9,8 ms?2 3,0 108 ms?1 6,7 10?11 Nm2kg?2 9,0 109 Nm2C?2 1,6 10?19 C 9,1 10?31 kg 6,6 10?34 Js 1,6 10?19 J

TABLE 2 PHYSICS FORMULAE

v u at or vf vi at

MOTION

s

v

2

u

t

or

x

vf

2

vi

t

v 2 u2 2as or vf 2 vi 2 2ax

s

ut

1 2

at

2

or

x

vi t

1 2

a(

t

)2

Fnet ma

FORCE AND MOMENTUM

Fnet

p t

or

Fnet t mv

p = mv ? mu or

p mvf mvi

p mv

w Fg mg

F

max f

FN

W Fs or W Fx or W Fx cos

Ep mgh

WORK, ENERGY AND POWER P W t

Ek

1 2

mv

2

Wnet EK

P Fv

efficiency powerout powerin

GRAVITATIONAL AND ELECTRIC FIELDS

F

G

m1m2 r 2

g

G

M r 2

F

k

q1q2 r 2

EF q

E

kQ r 2

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Page ii of ii

IQ t

R V I

ELECTRIC CIRCUITS

RS R1 R2 ......

V W q

emf I(Rext r ) 1 1 1 ...... RP R1 R2

P W t

or W Pt

W VIt P VI

or

W I 2Rt

or

W

V2

t

R

or P I2R or P V 2 R

BAcos

VpIp VsIs

ELECTRODYNAMICS

emf N t

Ns Vs Np Vp

c f E W0 EK (max)

PHOTONS AND ELECTRONS E hf

W0 hf0

or E hc

EK (max)

1 2

mvm2 ax

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