Chapter 7 Properties Of Matter Physics 9th Class Punjab MCQ Tests
9th Class Physics Chapter 7 MCQ Tests
Chapter 7 of 9th Class Physics has 33 questions. If you take an online MCQ test, the system will randomly choose the questions. If you want to take the quiz by chapter then click the start test button.
Total Questions: 33
Total Marks: 33
Time: 35 Mins
Total Questions: 33
Total Marks: 33
Time: 35 Mins
35Min : 00 Sec Remaining
Question # 1
Why does paper pipe squeezes when air is blown through it?
The paper pipe squeezes due to pressure difference when air is blown through it.
Question # 2
What would be the buoyant force of water on a block of wood, if the volume of block is 850 cm3 and the block is floating on water?
The buoyant force can be found out by using the following equation, F buoyancy = m Block g − − − − (eq 1) where m Block is the mass of block and g is gravitational acceleration equal to
Question # 3
Solve:
Question # 4
Question # 5
Which of the following statements is correct about plasma?
Plasma is created by adding energy to a gas so that some of its electrons leave its atoms. This is called ionization. It results in negatively charged electrons and positively charged ions.
Question # 6
Solve the following given question and choose the correct answer:
Question # 7
What is the force required to double the length of a wire of unit area of cross-section having young's modulus of elasticity Y?
Question # 8
What are the characteristics of gases?
In gases, particles are very far apart, so the concentraton of particles per unit volume is very less.
Question # 9
In automobile braking system, what are the retarders?
Retarder is used to augment or replace some of the functions of primary friction-based braking systems, usually on heavy vehicles.
Question # 10
The weight of a piece of metal is 9.25 kg in air and 8.20 kg in water. What is the density of metal?
Question # 11
The modulus of elasticity of a material does not depend on which of the following factors?
The elasticity depends on the types of crystals (nature of material) that whether it is a single crystal or poly crystals, e.g., the elasticity for a single crystal is more as compared to the elastici
Question # 12
SOLVE:
Question # 13
Why is steel more elastic than the rubber?
Elasticity can be defined as : the greater the resistance to change, the greater is the elasticity of the material and the faster it comes back to its original shape or configuration when the deformin
Question # 14
For which of the following conditions, the body will sink if 'W' is the weight of the body and 'F' is the buoyant force?
The principle of floatation states that when an object floats in a liquid, the buoyant force/upthrust that acts on the object is equal to the weight of the object.
Question # 15
What is the SI unit of stress?
Question # 16
What type of substance does Pascal's principle deal with?
Hydraulic systems use the Pascal's principle.
Question # 17
According to kinetic molecular theory, what is the cause that gases exert pressure on the walls of container?
The atoms and molecules in gases are much more spread out than in solids or liquids. They vibrate and move freely at high speeds.
Question # 18
What will happen to the water level in the capillary tube when air is blown in the horizontal pipe, as shown in image?
When air is blown in the horizontal pipe, pressure in the pipe decreases.
Question # 19
We have two liquids A and B which exert same amount of pressure. What would be the height of column of liquid A if the density of liquid A is twice as that of liquid B and height of column of liquid B is 10 cm?
As both liquids exert same amount of pressure, so we can find the height of column of liquid A by using P A = P B , where P A and P B are pressures exerted by liquids A and B.
Question # 20
Solve
Question # 21
Question # 22
A certain force F increases the length of a wire by 1 mm. What is the force required to increase the length by 2mm?
Question # 23
In a hydraulic system, a piston with a cross-sectional area of 21 square centimeters pushes on an incompressible liquid with a force of 38 Newton's. The far end of the hydraulic pipe connects to a second piston with a cross-sectional surface area of 100 square centimeters. What is the force on the second piston?
Question # 24
Which one of the following types of weather is usually associated with low pressure?
The low pressure is associated with rising air.
Question # 25
According to the kinetic-molecular theory, which substances are made of particles?
The kinetic molecular theory of matter offers a description of the microscopic properties of atoms (or molecules) and their interactions, leading to observable macroscopic properties (such as pressure
Question # 26
What are the dimensions of stress?
Stress is given as Stress = F/A , where F is the applied force on area A .
Question # 27
Why balloon floats in air?
Balloons fly in air due to buoyant force and these are filled with light gases like helium or hot air.
Question # 28
Why a sharp knife cuts better?
Question # 29
What are the applications of Archimedes principle?
Archimedes principle states that a body immersed in a fluid is buoyed up by a force equal to the weight of the displaced fluid.
Question # 30
A ball of mass 2 kg that has a diameter of 50 cm, falls in the pool. What is the volume of water displaced?
Question # 31
According to the kinetic molecular theory, which of the following statements describes a gas?
The atoms and molecules in gases are much more spread out than in solids or liquids. They vibrate and move freely at high speeds.
Question # 32
Why does a piece of stone sink in water but a ship with a huge weight floats?
The scenerio described in the statement is according to the Archimedes principle.
Question # 33
Solve it
Total Questions
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Question # 1
Why does paper pipe squeezes when air is blown through it?
The paper pipe squeezes due to pressure difference when air is blown through it.
Question # 2
What would be the buoyant force of water on a block of wood, if the volume of block is 850 cm3 and the block is floating on water?
The buoyant force can be found out by using the following equation, F buoyancy = m Block g − − − − (eq 1) where m Block is the mass of block and g is gravitational acceleration equal to
Question # 3
Solve:
Question # 4
Question # 5
Which of the following statements is correct about plasma?
Plasma is created by adding energy to a gas so that some of its electrons leave its atoms. This is called ionization. It results in negatively charged electrons and positively charged ions.
Question # 6
Solve the following given question and choose the correct answer:
Question # 7
What is the force required to double the length of a wire of unit area of cross-section having young's modulus of elasticity Y?
Question # 8
What are the characteristics of gases?
In gases, particles are very far apart, so the concentraton of particles per unit volume is very less.
Question # 9
In automobile braking system, what are the retarders?
Retarder is used to augment or replace some of the functions of primary friction-based braking systems, usually on heavy vehicles.
Question # 10
The weight of a piece of metal is 9.25 kg in air and 8.20 kg in water. What is the density of metal?
Question # 11
The modulus of elasticity of a material does not depend on which of the following factors?
The elasticity depends on the types of crystals (nature of material) that whether it is a single crystal or poly crystals, e.g., the elasticity for a single crystal is more as compared to the elastici
Question # 12
SOLVE:
Question # 13
Why is steel more elastic than the rubber?
Elasticity can be defined as : the greater the resistance to change, the greater is the elasticity of the material and the faster it comes back to its original shape or configuration when the deformin
Question # 14
For which of the following conditions, the body will sink if 'W' is the weight of the body and 'F' is the buoyant force?
The principle of floatation states that when an object floats in a liquid, the buoyant force/upthrust that acts on the object is equal to the weight of the object.
Question # 15
What is the SI unit of stress?
Question # 16
What type of substance does Pascal's principle deal with?
Hydraulic systems use the Pascal's principle.
Question # 17
According to kinetic molecular theory, what is the cause that gases exert pressure on the walls of container?
The atoms and molecules in gases are much more spread out than in solids or liquids. They vibrate and move freely at high speeds.
Question # 18
What will happen to the water level in the capillary tube when air is blown in the horizontal pipe, as shown in image?
When air is blown in the horizontal pipe, pressure in the pipe decreases.
Question # 19
We have two liquids A and B which exert same amount of pressure. What would be the height of column of liquid A if the density of liquid A is twice as that of liquid B and height of column of liquid B is 10 cm?
As both liquids exert same amount of pressure, so we can find the height of column of liquid A by using P A = P B , where P A and P B are pressures exerted by liquids A and B.
Question # 20
Solve
Question # 21
Question # 22
A certain force F increases the length of a wire by 1 mm. What is the force required to increase the length by 2mm?
Question # 23
In a hydraulic system, a piston with a cross-sectional area of 21 square centimeters pushes on an incompressible liquid with a force of 38 Newton's. The far end of the hydraulic pipe connects to a second piston with a cross-sectional surface area of 100 square centimeters. What is the force on the second piston?
Question # 24
Which one of the following types of weather is usually associated with low pressure?
The low pressure is associated with rising air.
Question # 25
According to the kinetic-molecular theory, which substances are made of particles?
The kinetic molecular theory of matter offers a description of the microscopic properties of atoms (or molecules) and their interactions, leading to observable macroscopic properties (such as pressure
Question # 26
What are the dimensions of stress?
Stress is given as Stress = F/A , where F is the applied force on area A .
Question # 27
Why balloon floats in air?
Balloons fly in air due to buoyant force and these are filled with light gases like helium or hot air.
Question # 28
Why a sharp knife cuts better?
Question # 29
What are the applications of Archimedes principle?
Archimedes principle states that a body immersed in a fluid is buoyed up by a force equal to the weight of the displaced fluid.
Question # 30
A ball of mass 2 kg that has a diameter of 50 cm, falls in the pool. What is the volume of water displaced?
Question # 31
According to the kinetic molecular theory, which of the following statements describes a gas?
The atoms and molecules in gases are much more spread out than in solids or liquids. They vibrate and move freely at high speeds.
Question # 32
Why does a piece of stone sink in water but a ship with a huge weight floats?
The scenerio described in the statement is according to the Archimedes principle.
Question # 33
Solve it
Total Questions
123456789101112131415161718192021222324252627282930313233
Physics MCQ Test by Topics
- +7.1 Kinetic Molecular Model of Matter
- +7.2 Density
- +7.3 Pressure
- +7.4 Atmospheric Pressure
- +7.5 Pressure in Liquids
- +7.6 Archimedes Principle
- +7.7 Principle of Floatation
- +7.8 Elasticity
- +7.9 Hooke's Law
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Updated on: 17-05-2026
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