9th Class Physics Urdu Medium Notes

Important 9th Class Physics Urdu Medium Notes written by Honorable Sir Adnan Haider Suib. These notes are very helpful in the preparation of 9th Class Physics Urdu Medium Notes these are according to the paper patterns of all Punjab boards.

• Here are the detailed 9th class physics notes urdu medium pdf to help you prepare for your exams.
• Full book composed and handwritten notes
• Chapter No: 1  Physical Quantities and Measurement
• Significant figures in an expression are:
• Which instrument is most suitable to measure the internal diameter of a test tube?
• Express the following quantities using prefixes.
• How do their prefixes micro, nano and pico relate to each other?
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• You hair grow at the rate of 1 mm per day. Find their growth rate in nms-1.
• Rewrite the following in standard form.
• Write the following quantities in standard form.
• Chapter No: 2  Kinematics
• Derive equations of motion for uniformly accelerated rectilinear motion?
• A train moves with a uniform velocity of 36kmh^-1 for 10s. Find the distance travelled by it. 
• A train starts from rest. It moves through 1km in 100s with uniform acceleration. What will be its speed at the end of the100s?
• A car has a velocity of 10ms^-1. It accelerates at 0.2ms^-2 for half a minute. Find the distance travelled during this time and the final velocity of the car.
• Chapter No: 3  Dynamics
• Which of the following materials lowers friction when pushed between metal plates?
• When a horse pulls a cart, the action is on her:
• A force of 20N moves a body with an acceleration of 2ms^-2, what is its mass?
• The weight of a body is 147. What is its mass? (Take the value of g as 10ms^-2).
• How much force is needed to prevent a body of mass 10kg from falling?
• Find the acceleration produced by a force of 100N in a mass of 50kg.
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• Chapter No: 4  Turning Effect of Forces
• A body is a neutral equilibrium when its centre of gravity:
• Find the rectangular components of a force of 50N making an angle of 30° with the x-axis.
• Find the magnitude and direction of a force if its x-component is 12N and y-component is 5N?
• A force of 100N is applied perpendicularly on a spanner at a distance of 10cm from a nut. Find the torque produced by the force.
• A force is acting on a body making an angle of 30° with the horizontal. The horizontal component of the force is 20N. Find the force.
• Chapter No: 5  Gravitation
• The orbital speed of a or orbit satellite is:
• Find the gravitational force of attraction between two spheres each of mass 1000kg. The distance between the centers of the spheres is 0.5m.
• The gravitational force between two identical lead spheres kept at 1m apart is 0.006673N.  Find their masses.
• The acceleration due to gravity on the surface of the moon is 1.62ms^-2. The radius of the moon is 1740km find the mass of the moon.
• Calculate the value of g at a height of 3600km above the surface of the earth.
• Chapter No: 6  Gravitation
• The altitude of geostationary orbits in which communication satellites are launched above the surface of the Earth is:
• The orbital speed of a or orbit satellite is:
• Find the gravitational force of attraction between two spheres each of mass 1000kg. The distance between the centers of the spheres is 0.5m.
• The gravitational force between two identical lead spheres kept at 1m apart is 0.006673N.  Find their masses.
• Chapter No: 7  Work and Energy
• In Einstein’s mass-energy equation, c is the:
• The rate of doing work is called:
• A man has pulled a cart through 35m applying a force of 300N. Find the work done by the man.
• A block weighing 20N is lifted 6m vertically upward. Calculate the potential energy stored in it.
• A car weighing 12kN has the speed of 20ms^-1. Find its kinetic energy.
• On reaching the top of a slope 6m high from its bottom, a cyclist has a speed of 1.5ms^-1. Find the K.E and P.E of the cyclist. The mass of the cyclist and his bicycle is 40kg.
• Chapter No: 8  Thermal properties of matter
• Temperature of water in a beaker is 50°C. What is its value in Fahrenheit scale?
• Normal human body temperature is 98.6°F. Convert it into Celsius scale and Kelvin scale.
• A balloon contains 1.2m^3 air at 15°C. Find its volume at 40°C. Thermal coefficient of volume expansion of air is 3.67×10^-3K^-1.
• How much heat is required to increase the temperature of 0.5kg of water from 100°C to 65°C?
• How much heat is required to change 100g of water at 100°C into steam? The latent heat of the vaporization of water is 2.26 ×10^6Jkg-1.
• Chapter No: 9  Transfer of Heat
• What is the greenhouse effect?
• Explain the impact of the greenhouse effect on global warming.
• How various surfaces can be compared by a Leslie cube?
• The concrete roof of a house of thickness 20cm has an area 200m^2. The temperature inside the house is 15°C and outside is 35°C. Find the rate at which thermal energy will be conducted through the roof. The value of k for concrete is 0.65Wm^-1K^-1.