PHYSICS FORM 4

CHAPTER 1 : INTRODUCTION TO PHYSICS1.1 UNDERSTANDING PHYSICS 1.4 MEASUREMENTS1.2 BASE AND DERIVED QUANTITIES 1.5 SCIENTIFIC INVESTIGATIONS1.3 SCALAR AND VECTOR QUANTITIES

5 BASE PHYSICAL QUANTITIESBase Quantity Symbol SI unit Other units Measured by

Length l

Mass m

Time t

Temperature T

Electric current I

CHAPTER 2 : FORCES AND MOTION2.1 LINEAR MOTION 2.7 SAFETY FEATURE IN VEHICLES2.2 MOTION GRAPHS 2.8 GRAVITY2.3 INERTIA 2.9 FORCES IN EQUILIBRIUM2.4 MOMENTUM 2.10 WORK, ENERGY,POWER AND EFFICIENCY2.5 EFFECTS OF A FORCE 2.11 APPRECIATING THE IMPORTANCE OF2.6 IMPULSE AND IMPULSIVE FORCE MAXIMING THE EFFICIENCY OF DEVICES

LIST OF FORMULA AND PHYSICAL QUANTITIES INVOLVEDFormula 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 = mgWeight W

Gravitational acceleration/ field strength

g

W = Fs Work W

1

2

Ek = ½ mv2 EK

Eg = m g hEg

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 PRINCIPLE3.2 PRESSURE IN LIQUIDS 3.5 ARCHEMEDES`S PRINCIPLE3.3 PRESSURE IN GAS 3.6 BERNOULLIE`S PRINCIPLE

LIST OF FORMULA AND PHYSICAL QUANTITIES INVOLVEDFormula 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

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 : HEAT4.1 THERMAL EQUILLIBRIUM 4.3 SPECIFIC LATENT HEAT4.2 SPECIFIC HEAT CAPACITY 4.4 THE GAS LAWS

LIST OF FORMULA AND PHYSICAL QUANTITIES INVOLVEDFormula Physical Quantity Symbol SI Unit Other units

θ =

Cll

ll o1000100

0 ×−−θ

θ

Q = m c θ Q

Pt = m c θm

c

Q = ml l

Pt = mlPower 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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CHAPTER 5 : LIGHT5.1 REFLECTION OF LIGHT 5.3 TOTAL INTERNAL REFLECTION OF LIGHT5.2 REFRACTION OF LIGHT 5.4 LENSES

LIST OF FORMULA AND PHYSICAL QUANTITIES INVOLVEDFormula Physical Quantity Symbol SI Unit Other units

r = 2f Radius of curvature r

n = r

i

sin

sini

r

n = v

cSpeed of light in air c 3 x 108 ms-1

Speed of light in medium v

n = h

HH

h

n = csin

1n 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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