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9th Class Physics Chapter 7 Online Preparation
9th Class English Medium Subjects
9th Class Urdu Medium Subjects
Online Short Questions For Chapter 7 "9th Class Physics English Medium Chapter 7 Preparation "
Try The Short Questions For 9th Class Physics English Medium Chapter 7 Preparation
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Total Questions10
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Available Sets8
Physics (New Book) - 9th Class Physics English Medium Chapter 7 Preparation
Question # 1
What is meant by deforming force.
- Ans 1: The applied force which changes the shape, length and volume of substance is called the deforming force.
Prepare Complete Set Wise Questions For Chapter 7 "9th Class Physics English Medium Chapter 7 Preparation "
9th Class Physics English Medium Chapter 7 Preparation - Set 1
Question # 1
What is meant by deforming force.
- Ans 1: The applied force which changes the shape, length and volume of substance is called the deforming force.
9th Class Physics English Medium Chapter 7 Preparation - Set 2
Question # 1
What makes a sucker pressed on a smooth wall sticks to it
- Ans 1: Sucker pressed on a smooth wall due to atmospheric pressure Sucker pressed on a smooth wall sticks to it because sucker pump the air out In this way pressure outside the sucker is greater than inside of ti.
9th Class Physics English Medium Chapter 7 Preparation - Set 3
Question # 1
What is the working principle of hydraulic press
- Ans 1: Hydraulic press is a machine which is used to lift heavy objects. It works on the principle of Pascal Law
9th Class Physics English Medium Chapter 7 Preparation - Set 4
Question # 1
What is meant by deforming force.
- Ans 1: The applied force which changes the shape, length and volume of substance is called the deforming force.
9th Class Physics English Medium Chapter 7 Preparation - Set 5
Question # 1
Can we use a hydrometer to measure the density of milk?
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Ans 1:
Hydrometer is a device which is used to measure the density of liquids. So it can be used to measure the density of milk.
9th Class Physics English Medium Chapter 7 Preparation - Set 6
Question # 1
Define deforming force
- Ans 1: The force which changes the dimension of the object such as length volume or which changes the shape of substance is known as deforming force
9th Class Physics English Medium Chapter 7 Preparation - Set 7
Question # 1
Write two properties of liquids.
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Ans 1: The distance between the molecules of liquid are more than in solids Thus attractive forces between them are ewakerLike solids molecules of a liquid also vibrate about their mean position but are not rigidly held with each otherLiquid attains the shape of a container to which it is put Such as water attain the shape of that glass in which water.
9th Class Physics English Medium Chapter 7 Preparation - Set 8
Question # 1
Difference between stress and strain
- Ans 1: Stress: Force acting on unit area at surface of body is called stress. formula: Stress = F/A Unit ; It unit is Nm-2
- Ans 2: Strain: The ratio between change in object and origional object is known as strain. when stress acts aon a body, it may change it length, volume or shape. Formula: Strain= change in object/Original object Unit: It has no unit due to ratio between similar quantities.
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