Welcome to the 9th Class Physics Chapter 07 MCQs Online Test. We are presenting you with top MCQ questions from the 9th Class Physics Chapter Properties of Matter.
9th Class Physics Chapter 07 MCQs with Answers
The 9th Class Physics Chapter “Properties of Matter” invites us to explore the diverse and intriguing characteristics of the substance that fills our world. Within this captivating chapter, we delve into the fundamental properties and behavior of matter.
Prepare to embark on a journey of discovery, where we uncover the secrets hidden within the atoms and molecules that make up our physical reality. As we unravel the properties of matter, we gain a deeper understanding of its composition, behavior, and the forces that govern its interactions.
Our exploration begins with the study of mass, volume, and density. We learn how to measure and quantify these essential properties of matter. We delve into the concept of density, understanding how it relates to the compactness of a substance and its buoyancy in different environments.
As we move forward, we encounter the fascinating world of states of matter. We explore the characteristics of solids, liquids, and gases, and comprehend how their particles behave and interact. We delve into the concepts of melting, freezing, boiling, and condensation, witnessing the transformative power of energy on matter.
The chapter further unveils the behavior of matter under the influence of heat. We learn about thermal expansion, as substances expand or contract with changes in temperature. We explore the concepts of specific heat capacity and latent heat, understanding how substances absorb or release energy during phase transitions.
Our journey into the properties of matter also encompasses the captivating world of pressure. We delve into the concept of pressure and its relation to force and area. We learn about atmospheric pressure and its influence on our surroundings, as well as the applications of pressure in hydraulic systems.
Through practical examples, experiments, and problem-solving exercises, we enhance our understanding of the properties of matter. We sharpen our skills in measurement, data analysis, and interpreting the behavior of substances in different scenarios. We unlock the ability to unravel the mysteries of matter’s properties and apply this knowledge to everyday situations.
Studying “Properties of Matter” in the 9th Class Physics curriculum provides us with a foundation to comprehend the physical world around us. It nurtures our scientific curiosity, instills critical thinking skills, and fosters an appreciation for the complexities and wonders of matter. So let us embark on this enlightening journey, where we explore the fascinating properties of matter, unraveling the secrets of its composition, behavior, and the forces that shape our physical reality.
What are the Properties of Matter?
Any characteristic that can be measured, such as an object’s density, color, mass, volume, length, malleability, melting point, hardness, odor, temperature, and more, are considered properties of matter.
9th Class Physics MCQs Chapter 07: Properties of Matter
1. The quality of the matter due to which it restores its size and shape when force ceases to act on it:
(a) Inertia
(b) Elasticity
(c) Permittivity
(d) Rigidity
2. The force that acts on unit area of an body and thus changes its shape or size:
(a) Stress
(b) Strain
(c) Yong’s Modulus
(d) Elastic limit
3. In system international, the unit of stress is:
(a) Nm2
(b) Nm1
(c) Nm
(d) None of above
4. The ratio of change in length to the original length will be :
(a) Stress
(b) Tensile strain
(c) Young’s Modulus
(d) Elastic limit
5. When stress is increased, the strain also goes on:
(a) Decreasing
(b) Increasing
(c) Constant
(d) All of above
6. The law about stress and strain is presented by:
(a) Hook
(b) Newton
(c) Joule
(d) Archimedes
7. According to Hook’s law, the elastic limit stress and strain has proportion of:
(a) Inverse
(b) Direct
(c) Same
(d) None of above
8. The ratio of tensile stress and tensile strain is:
(a) Variable
(b) Pascal’s Law
(c) non-uniform
(d) None of above
9. The unit of Young’s modulus is:
(a) Nm2
(b) Nm1
(c) Nm
(d) None of above
10. The force exerted perpendicularly on unit area of a body is known as :
(a) Strain
(b) Constant
(c) Pressure
(d) Work
11. The unit of pressure is:
(a) Nm2
(b) Nm1
(c) Pa
(d) Both a & c
12. Pressure depends upon:
(a) Density
(b) Depth
(c) Temperature
(d) Both a & b
13. If a body is at a depth of ‘h’ from the liquid surface of density ‘p’, then the pressure ‘P’ on that body is:
(a) P = w/t
(b) P = pgv
(c) P = pgh
(d) p = F/a
14. The law about pressure on the object is presented by:
(a) Joule
(b) Pascal
(c) Newton
(d) Galileo
15. Hydraulic press is based on:
(a) Joule’s law
(b) Pascal law
(c) Newton’s law
(d) Young’s Modulus
16. If the pressure is exerted on a liquid, liquid transmits it:
(a) Variably
(b) Equally
(c) In all directions
(d) both b & c
17. Hydraulic brake works on the principle of:
(a) Hydraulic press
(b) Pascal law
(c) Joule’s law
(d) Both a & b
18. tells about the floating and sinking of objects:
(a) Pascal’s law
(b) Newton’s law
(c) Archimedes principle
(d) None of them
19. Because of pressure difference on an object, an upward force acts on the object called :
(a) Weight
(b) Buoyant force
(c) Stress
(d) All of above
20. Buoyant force is equal to the ———- of the liquid displaced by the object:
(a) Volume
(b) Density
(c) Weight
(d) All of above
21. The body will float on the liquid surface when:
(a) W > F
(b) W < F
(c) W = F
(d) None of above
22. The body will sink in the liquid surface when:
(a) W > F
(b) W < F
(c) W = F
(d) None of above
23. Submarine works on the principle of:
(a) Pascal’s law
(b) Newton’s law
(c) Archimedes principle
(d) None of them
24. When temperature of the gas increases, gas pressure ————–:
(a) Increases
(b) Decreases
(c) Remains same
(d) None of above
25. If quantity of the gas is increased in the container then gas pressure ——-:
(a) Increases
(b) Decreases
(c) Remains same
(d) None of above
26. According to Kinetic Molecular theory, gases exert pressure on the walls of the container due to their:
(a) Weight
(b) Mass
(c) Collisions
(d) All of above
27. The molecules of the matter are always remain in the state of:
(a) Rest
(b) Plasma
(c) Motion
(d) Tension
28. The energy possessed by the molecules of the matter is due to its motion:
(a) P.E.
(b) K.E.
(c) Sound
(d) None of above
29. When temperature of the matter increases, intermolecular forces ——:
(a) Increases
(b) Decreases
(c) Remains same
(d) None of above
30. Molecules of which state of matter have strongest attractive for
(a) Solid
(b) Liquid
(c) Gasses
(d) Plasma
31. How many states of mother are?
(a) 2
(b) 3
(c) 4
(d) many
32. Weakest attractive forces are in
(a) solid
(b) liquid
(c) gases
(d) Plasma
33. Ionic state of matter is called
(a) gas
(b) plasma
(c) liquid
(d) none of these
34. Plasma is
(a) Good conductor
(b) Bad conductor
(c) Semiconductor
(d) non conductor
35. Unit of density
(a) kg m3
(b) kg m-2
(c) kg m-3
(d) kg m2
36. Unit of pressure is
(a) Nm2
(b) Pa
(c) Nm
(d) Both a & b
37. The instrument used to measure atmospheric pressure
(a) Colorimeter
(b) Hypsometer
(c) Barometer
(d) None of these
38. A solid object is:
(a) Not elastic below the elastic limit
(b) Elastic above the elastic limit
(c) Elastic below the elastic limit
(d) None of above