Here is the new 2019 today guess paper of physics class 9th. The guess of physics 9th class for final exams 2019 for all boards like Gujranwala board, Multan board, Lahore Board, Sahiwal Board, Faisalabad Board etc is given below.

## 9th class physics guess paper 2019

Today, I have completed a new and fresh guess paper of physics for 9th class for 2019 board exams. Please see the guess paper below:

### 9th physics Unit 1

#### Important Definitions:

- physics

- zero error and error correction

- base quantities and derived quantities

- mechanics

- electromagnetism

- nuclear physics

- atomic physics

- plasma physics

- base and derived units

- electronic balance

- physical balance

- least count

#### Important Short questions

- differentiate between mechanical stopwatch and digital stopwatch

- advantages/role of physics in daily life

- write in scientific notation. (any term)

#### Important Long questions

- screw gauge (uses and functions)

- meter rule

- rules for identifying significant figures

### 9th physics Unit 2

#### Important Definitions:

###
- uniform velocity
- rest and motion
- translatory motion
- linear motion
- random motion
- acceleration and speed
- distance and displacement
- negative acceleration
- gravitational acceleration

#### Important Short questions

###
- name the types of motion
- derive 1st equation of motion
- a car starts from rest its velocity becomes 20 ms-1 in 8 seconds. find the acceleration.
- find the acceleration that is produced by 20N forces in the mass of 8 kg.

#### Important Long questions

###
- 2nd equation of motion with the help of graph
- 3rd equation of motion with the help of graph
- prove that vf= vi+at
- A cricket ball hit vertically upward returns to the ground after 6 seconds. calculate its velocity.
- a train starts from rest with an acceleration of 0.5 ms-2. find its speed in kmh-1 when it had moved 100 meter.

### 9th physics Unit 3

#### Important Definitions:

###
- momentum
- centripetal force
- circular motion
- inertia
- law of conservation of momentum
- Newton's 2nd law of motion
- rolling friction
- sliding friction

#### Important Short questions

###
- differentiate between mass and weight
- two methods to reduce friction
- what is meant by banking of roads?
- Write units of a) momentum b) force

#### Important Long questions

###
- the relation between force and momentum
- Newton's 1st law of motion
- Newton's 2nd law of motion
- difference between mass and weight
- Benefits and disadvantages of friction and methods to reduce friction
- how much centripetal force is needed to move a body of mass 0.5 kg in a circular path of radius 50 cm with a speed 3 ms-1

### 9th physics Unit 4

#### Important Definitions:

###
- center of gravity
- rigid body
- torque and couple
- the moment arm of force
- moment arm
- axis of rotation
- resolution of vectors
- 2nd condition for equilibrium

#### Important Short questions

###
- differentiate between like and unlike parallel forces
- describe the line of action of a force
- how vectors are aded by head to tail rule?
- state princiaple of moments

#### Important Long questions

###
- A Numerical will come from this chapter
- what is meant by resolution of force? Resolve a force into its components
- find the center of gravity of an irregular with the help of the experiment.

### 9th physics Unit 5

#### Important Definitions:

###
- Global positioning system. GPS
- field of force
- law of gravitation
- the force of gravity (gravitational force)
- artificial satellites
- geostationary satellites

#### Important Short questions

###
- uses of artificial satellites
- How the value of "g" varies with altitude?
- on what factors the orbital speed of satellites depends?

#### Important Long questions

###
- Determine the mass of earth using Newton's law of gravitation

### 9th physics Unit 6

#### Important Definitions:

###
- magma
- fossil fuel
- fossils
- wind energy
- kinetic energy
- potential energy
- solar cell
- unit of power

#### Important Short questions

###
- differentiate between renewable and non-renewable sources of energy
- Name the renewable and non-renewable sources of energy
- name the types of energy
- Einstein mass-energy equation

#### Important Long questions

###
- A numerical will come from this unit (A cyclist does, A machine does work, a stone of mass 500 g, calculate the power of the pump)
- Working and construction of a nuclear power station

### 9th physics Unit 7

#### Important Definitions:

###
- density and its unit
- Pascal's Law
- Hook's law
- atmospheric pressure
- heat
- temperature
- pressure and its unit

#### Important Short questions

###
- differentiate between stress and strain

#### Important Long questions

###
- Define Young's modulus and derive its mathematical form.
- Explain that the pressure of a liquid increases with depth.

### 9th physics Unit 8

#### Important Definitions:

###
- latent hear of fusion
- the internal energy of a body
- evaporation
- specific heat capacity
- specific heat

#### Important Short questions

###
- how upper and lower points are fixed on a thermometer?
- define the coefficient of linear thermal expansion
- state kinetic molecular model

#### Important Long questions

###
- explain volumetric thermal expansion and derive its equation
- explain latent heat of fusion and latent heat of vaporization and write its formulae
- how much heat is required to increase the temperature of 0.5 kg of water from 100 c to 350 c?
- convert 500 Celcius into Fahrenheit

### 9th physics Unit 9

#### Important Definitions:

###
- radiation
- thermal conductivity
- conduction
- greenhouse effect
- convection currents

#### Important Short questions

###
- Why are metals good conductor of heat?
- write down two ways of heat transfer.

Best of Luck...... ! :)

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9th class physics guess paper 2019
Reviewed by Saif Ullah ZahidonMarch 19, 2019
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