1. PHYSICS FORM 4
CHAPTER 1 : INTRODUCTION TO PHYSICS
1.1 UNDERSTANDING PHYSICS 1.4 MEASUREMENTS
1.2 BASE AND DERIVED QUANTITIES 1.5 SCIENTIFIC INVESTIGATIONS
1.3 SCALAR AND VECTOR QUANTITIES
5 BASE PHYSICAL QUANTITIES
Base Quantity Symbol SI unit Other units Measured by
Length l
Mass m
Time t
Temperature T
Electric current I
CHAPTER 2 : FORCES AND MOTION
2.1 LINEAR MOTION 2.7 SAFETY FEATURE IN VEHICLES
2.2 MOTION GRAPHS 2.8 GRAVITY
2.3 INERTIA 2.9 FORCES IN EQUILIBRIUM
2.4 MOMENTUM 2.10 WORK, ENERGY,POWER AND EFFICIENCY
2.5 EFFECTS OF A FORCE 2.11 APPRECIATING THE IMPORTANCE OF
2.6 IMPULSE AND IMPULSIVE FORCE MAXIMING THE EFFICIENCY OF DEVICES
LIST OF FORMULA AND PHYSICAL QUANTITIES INVOLVED
Formula Physical Quantity Symbol SI Unit Other units
v =
t
s Distance / /Displacement s m km // cm
a =
t
uv − Speed // Velocity v ms-1
km h-1
v = u + at t s min // hour
s = (
2
vu +
) t
v
s = ut + ½ at 2
u
v2
= u2
+ 2as a
p = m v Momentum p
F = ma F
F =
t
uvm )( − m
Ft = m( v – u ) Impulse Ft
W = mg
Weight W
Gravitational acceleration/
field strength
g
W = Fs Work W
1
2

2. Ek = ½ mv2
EK
Eg = m g h
Eg
h
P = F v P
E = P t E
F = k x k
Ee = ½ F x x
Ee = ½ kx2
Ee
Physics Principles:
1- Principle of Conservation of Momentum :
.......................................................................................................................................................................................
.
2- Principle of Conservation of Energy:
.......................................................................................................................................................................................
.
Physics Laws:
1- Newton’s First Law:.............................................................................................................................................
2- Newton’s Second Law:........................................................................................................................................
3- Newton’s Third Law:...........................................................................................................................................
4- Law of inertia:........................................................................................................................................................
5- Hooke’s Law:..........................................................................................................................................................
CHAPTER 3: FORCES AND PRESSURE
3.1 PRESSURE 3.4 PASCAL`S PRINCIPLE
3.2 PRESSURE IN LIQUIDS 3.5 ARCHEMEDES`S PRINCIPLE
3.3 PRESSURE IN GAS 3.6 BERNOULLIE`S PRINCIPLE
LIST OF FORMULA AND PHYSICAL QUANTITIES INVOLVED
Formula Physical Quantity Symbol SI Unit Other units
P =
A
F
2
2
1
1
A
F
A
F
=
P
F
A
P = h ρ g
h
g
ρ

3. ρ =
V
m m
V
FB = ρ V g FB
Physics Principles:
1- Pascal’s Principle:.................................................................................................................................................
2- Archimedes’ Principle:........................................................................................................................................
3- Bernoulli’s Principle:...........................................................................................................................................
Physics Law:
1- Law of floatation:.................................................................................................................................................
CHAPTER 4 : HEAT
4.1 THERMAL EQUILLIBRIUM 4.3 SPECIFIC LATENT HEAT
4.2 SPECIFIC HEAT CAPACITY 4.4 THE GAS LAWS
LIST OF FORMULA AND PHYSICAL QUANTITIES INVOLVED
Formula Physical Quantity Symbol SI Unit Other units
θ =
C
ll
ll o
100
0100
0
×
−
−θ
θ
Q = m c θ Q
Pt = m c θ
m
c
Q = ml l
Pt = ml
Power P
t
P1 V1 = P2 V2 (gas) Pressure P
2
2
1
1
T
V
T
V
=
(gas) Volume V
2
2
1
1
T
P
T
P
=
Absolute temperature T
Physics Law  Gas Laws:-
1- Boyle’s Law : ...........................................................................................................................................................
2- Charles’ Law: ..........................................................................................................................................................
3- Pressure Law:..........................................................................................................................................................
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4. CHAPTER 5 : LIGHT
5.1 REFLECTION OF LIGHT 5.3 TOTAL INTERNAL REFLECTION OF LIGHT
5.2 REFRACTION OF LIGHT 5.4 LENSES
LIST OF FORMULA AND PHYSICAL QUANTITIES INVOLVED
Formula Physical Quantity Symbol SI Unit Other units
r = 2f Radius of curvature r
n =
r
i
sin
sin
i
r
n =
v
c
Speed of light in air c 3 x 108
ms-1
Speed of light in medium v
n =
h
H
H
h
n =
csin
1
n No unit
Critical angle c
P =
f
1 Power of lens P
vuf
111
+=
f
u
m =
u
v v
m No unit
m =
o
i
h
h hi
ho
Physics Law:
1- Law of reflection: i : ...............................................................................................................................
ii : ...............................................................................................................................
2- Law of refraction: i : ...............................................................................................................................
ii: ................................................................................................................................
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