# 9th Class Physics Important Question

## 9th Class Physics All Chapter Important Question on Newsongoogle By Bilal Articles

Unlock Class 9th Physics resources on Newsongoogle by Bilal Articles, featuring all-chapter notes, past papers, and guess papers. Enhance your exam preparation and grasp key physics concepts with these tailored materialsâ€”Excel in your Class 9th Physics studies with comprehensive resources to support your academic journey.

### Chapter 1 Physics 9th Class Possible Short Questions:

Q No 1: What is Physics? Or Define Physics?
Q No 2: What is the importance of Physics?
Q No 3: Give the name of five Physics branches and define it.
Q No 4: What are physical quantities? Or Define Physical quantities and give examples.
Q No 5: Write the types of physical quantities.
Q No 6: Define Base Quantities and give three examples.
Q No 7: What are Derived Quantities? Give some examples.
Q No 8: What are SI units?
Q No 9: What are base units give examples.
Q No 10: What are Derived Units give examples.
Q No 11: Define prefixes.
Q No 12: What is Scientific Notation?
Q No 13: What are Measuring Instruments?
Q No 14: What is the least account?
Q No 15: What is the least account of Meter Rule, Venire Calipers, and screw gauge?
Q No 16: Write down the formulas to find the least account of screw gauge, venire Caliper?
Q No 17: What is Measuring Cylinder?
Q No 18: What are significant Figures? How do we find Significant Figures?
Q No 19: What are a Stopwatch and a digital stopwatch? Also, write its Least Account.
Q No 20: What is venire constant?

### Chapter 2 Physics 9th Class Possible Shorts Questions

Q No 1: What is Rest and Motion?
Q No 2:Diff. Between Translatory Motion, Rotatary Motion, and Vibratory Motion?
Q No 3: How many Types of Translatory Motion Explain?
Or Define and give examples of (1) Linear Motion (2) Circular Motion (3) Random Motion
Q No 4: What is the difference between vector quantities and scalar quantities?
Q No 5: How to represent vector quantities Explain.
Q No 6: Define (1) Distance (2) Displacement (3) Speed (4) velocity (5) Acceleration (6)
uniform velocity (7) uniform Acceleration (8) retardation or deceleration
Q No 7: Write formula and SI units of (1) speed (2) velocity (3) Acceleration
Q No 8: Derive Equations of Motions?
Q No 9: What is Gravitational Acceleration?
Q No 10: Explain the motion of freely falling Bodies.

### Chapter 3 Physics 9th Class Possible Shorts Questions

Q No 1: Define Dynamics.
Q No 2: What is Force and inertia? Define (1) Force (2) Inertia
Q No 3: Give an example of Inertia. Give an experiment to prove inertia.
Q No 4: What is Momentum? Write its Mathematical form and SI unit.
Q No 5: Define Newtonâ€™s first law of Motion. Why itâ€™s also known as the Law of Inertia?
Q No 6: What is Newtonâ€™s second law of Motion? Give its Mathematical form.
Q No 7: What is the SI unit of Force? Define it.
Q No 8: What is the difference between Mass and weight?
Q No 9: What is Newtonâ€™s Third Law of Motion?
Q No 10: What is Tension?
Q No 11: Draw the relation between Force and Momentum. Write Newtonâ€™s second law in the form of Momentum.
Q No 12: What is an isolated system? Also, define the Law of conservation of Momentum.
Q No 13: What is Friction? Also, define the Force of limiting Friction and the coefficient of Friction.
Q No 14: What is Rolling Friction? Why does rolling reduce friction?
Q No 15: Write the methods to reduce Friction.
Q No 16: What is centripetal and centrifugal Force? Give its formula.\

### Chapter 4 Physics 9th Class Possible Shorts Questions

Q No 1: What is like parallel Forces and unlike parallel Forces?
Q No 2: What is Resultant Force?
Q No 3: Explain Head the Tail Rule for Graphically Addition of vectors.
Q No 4: What is the mean of Resolution of Forces? Give a perpendicular component of Force.
Q No 5: What is a Rigid Body? Also, Define Torque.
Q No 6: What is the Line of action of Force and Moment Arm? Give SI Units?
Q No 7: What is the Principle of Moments?
Q No 8: What is the difference between the Centre of Mass and the Centre of Gravity?
Q No 9: How Can we find the Centre of Gravity of any irregular shape? Explain
Q No 10: What is Equilibrium?
Q No 11: What is the first state of Equilibrium?
Q No 12: What is the second state of Equilibrium Explain.
Q No 13: Define (1) Stable Equilibrium (2) Unstable Equilibrium (3) Neutral Equilibrium
Q No 14: Explain with example Stability and Centre of Mass.

### Chapter 5 Physics 9th Class Possible Shorts Questions

Q No 1: Define Newtonâ€™s Gravitation law. Or what is the Law of gravitation that gives mathematical form?
Q No 2: The Law of Gravitation relates to Newtonâ€™s third law. How?
Q No 3: What is field Force and Gravitational field?
Q No 4: Find the Mass of Earth.
Q No 5: Gravitational acceleration is not constant? How does it change?
Q No 6: Explain variation in g with Altitude.
Q No 7: What is Artificial Satellites?
Q No 8: Find the velocity of Artificial Satellites.

### Chapter 6 Physics 9th Class Possible Shorts Questions

Q No 1: What is Work? Give it Si Unit and define it.
Q No 2: What is Energy?
Q No 3: What is Kkinetic?Eenergy? Drive its formula?
Q No 4: What is Potential Energy? Give its Formula.
Q No 5: Does energy exist in various forms? Give some of its Forms.
Q No 6: What is the conversion of energy?
Q No 7: What are Fossil Fuels?
Q No 8: What are Nuclear Fuels?
Q No 9: WRITE A NOTE ON SOLAR HOUSE HEATING AND SOLAR CELLS.
Q No 10: Explain Energy From Bio-Mass.
Q No 11: Give Einsteinâ€™s Mass-Energy Equation.
Q No 12: What is Efficiency and % Efficiency?
Q No 13: What is Power? Give its SI unit?
Q No 14: Define watt.

### Chapter 7 Physics 9th Class Possible Shorts Questions

Q No 1: EXPLAIN THE PROPERTIES OF LIQUIDS, SOLIDS, GASES, AND PLASMA
BY USING THE KINETIC MOLECULES MODEL?
Q No 2: What is Density? Gives its Formula?
Q No 3: What is Pressure? Gives its formula and Si unit?
Q No 4: What is Atmospheric Pressure?
Q No 5: Atmospheric Pressure exerts in all directions? Prove?
Q No 6: Explain the variation in Atmospheric Pressure.
Q No 7: Liquids also exert Pressure? Explain Liquid Pressure.
Q No 8: What is Pascalâ€™s LAW?
Q No 9: What is a Hydraulic Pressure Machine?
Q No 10: Explain the Breaking system in Vehicles.
Q No 11: What is Archimedesâ€™ Law?
Q No 12: What is the Principle of Floatation?
Q No 13: What are Elasticity and Stress?
Q No 14: Give the types of stress that also define Strain.
Q No 15: What is Hookeâ€™s Law?
Q No 16: What is Youngâ€™s Modulus?

### Chapter 8 Physics 9th Class Possible Shorts Questions

Q No 1: What is Temperature and Heat?
Q No 2: What is the Internal Energy of Molecules?
Q No 3: What is a Thermometer?
Q No 4: Write the properties of the liquid used in the thermometer.
Q No 5: Draw the diagram of the Thermometer and give its structure.
Q No: Gives the formula used in the conversion of Temperature? Celsius to Kelvin, Kelvin to
Celsius? Also Kelvin to Fahrenheit scale?
Q No 7: Define specific Heat Capacity and specific heat constant.
Q No 8: What is meant by Heat capacity?
Q No 9: What is the freezing point and Latent heat of fusion?
Q No 10: What is the Latent heat of vaporization?
Q No 11: What is Evaporation?
Q No 12: What is thermal Expansion? Give its Applications?
Q No 13: Explain Thermal Expansion in Liquids.

### Chapter 9 Physics 9th Class Possible Shorts Questions

Q No 1: What is meant by Transfer of Heat?
Q No 2: What are Conduction and Thermal Conduction?
Q No 3: Explain the Rate of flow of heat.
Q No 4: What are the Conductor and Insulator? Give the uses of the Conductor and Insulator.
Q No 5: What is Convection?
Q No 6: What are the uses of Convection current?
Q No 7: What are Land Breezes and Sea Breezes?
Q No 8: What is meant by Gliding?
Q No 9: What are Radiations? Explain briefly.
Q No 10: Give the Applications of Radiations.

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