9th Class Physics Past Paper 2024
Note: Physics 1st Time Paper of 9th Class.
Group-I (Subjective) 40 Marks
Part– I
Q.2 Write short answers to any FIVE (5) questions:
(i) Define least count, what is the least count of meter, rod?
(ii) Express 3200000W in kilo and megawatt by using prefixes.
(iii) Write two characteristics of physical quantities.
(iv) What is meant by banking of road?
(v) What is braking and skidding?
(vi) How can you relate a force with the change of momentum of a body?
(vii) What is the value of radius of earth?
(viii) What is a resultant force?
Q.3 Write short answers to any FIVE (5) questions:
(i) Define rotatory motion with an example.
(ii) Differentiate scalars and vectors with example?
(iii) What is kinematics Principle?
(iv) State Archimedes’ Principle.
(v) Define Young’s Modulus and write its SI unit.
(vi) Can we use milka ved hydrometer to measure the density of liquids?
(vii) Define thermal conductivity.
(viii) How does heat reach us from the sun?
Q.4 Write short answers to any FIVE (5) questions:
(i) How head to tail rule helps to find resultant of forces?
(ii) What is second condition for equilibrium?
(iii) Define centre of gravity.
(iv) Why ideal system does not exist in our daily life?
(v) Why are fossil fuels called non-renewable form of energy?
(vi) Define kinetic energy and potential energy.
(vii) What is clinical thermometer? Write its range.
(viii) Convert 50°C on a Celsius scale into Fahrenheit temperature scale.
PART-II
Note: Attempt any TWO questions.
Q.5
(a) Derive a relation between force and momentum.
(b) The acceleration due to gravity on the moon is 1.62 m/s–². The radius of moon is 1740 km. Find the mass of the moon.
Q.6
(a) Define Pascal’s law and write a note on hydraulic press.
(b) A train moves with a uniform velocity of 36 km/h-1 for 10 sec. Find the distance travelled by it.
Q.7
(a) Define equilibrium. Explain first condition for equilibrium.
(b) Calculate the power of a pump which can lift 200 kg of water through a height of 6 m in 10 sec.