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9th Class Physics Chapter 4 Online Preparation
9th Class English Medium Subjects
9th Class Urdu Medium Subjects
Online Short Questions For Chapter 4 "9th Class Physics English Medium Chapter 4 Preparation "
Try The Short Questions For 9th Class Physics English Medium Chapter 4 Preparation
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Total Questions10
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Available Sets12
Physics (New Book) - 9th Class Physics English Medium Chapter 4 Preparation
Question # 1
What is stat of neutral equilibrium.
- Ans 1: Neutral Equilibrium; If a body remains in its new position when disturbed from its previous position, then body is said to be in neutral equilibrium.
Prepare Complete Set Wise Questions For Chapter 4 "9th Class Physics English Medium Chapter 4 Preparation "
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Set 1
10 Questions
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Set 2
10 Questions
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Set 3
10 Questions
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Set 4
10 Questions
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Set 5
10 Questions
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Set 6
10 Questions
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Set 7
10 Questions
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Set 8
10 Questions
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Set 9
10 Questions
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Set 10
10 Questions
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Set 11
10 Questions
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Set 12
10 Questions
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9th Class Physics English Medium Chapter 4 Preparation - Set 1
Question # 1
What is stat of neutral equilibrium.
- Ans 1: Neutral Equilibrium; If a body remains in its new position when disturbed from its previous position, then body is said to be in neutral equilibrium.
9th Class Physics English Medium Chapter 4 Preparation - Set 2
Question # 1
Define first condition of equilibrium?
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Ans 1: A body will be in equilibrium if the resultant of all the forces acting on it is zero this is
first condition of equilibrium.
9th Class Physics English Medium Chapter 4 Preparation - Set 3
Question # 1
Define stable equilibrium with example.
- Ans 1: Stable equilibrium: A body is said to be in stable equilibrium if after a slightest it returns to its previous position. Example: If a book returns to its previous position after a slightest tilt then book is said be in stable equilibrium.
9th Class Physics English Medium Chapter 4 Preparation - Set 4
Question # 1
Define resolution of vectors
- Ans 1: To split up a force into its perpendicular components is called resolution of forces.
9th Class Physics English Medium Chapter 4 Preparation - Set 5
Question # 1
Differentiate between like and unlike forces.
- Ans 1: Like parallel forces: such a parallel forces whoe direction is same are called like parallel force. Example: the weights of apples in a sack are parallel to each other and also in the same direction.
- Ans 2: Unlike parallel forces.:Such parallel forces which are opposite to each other are called unlike parallel forces. Example: Two forces acting on a steering wheel to turn it are unlike parallel forces.
9th Class Physics English Medium Chapter 4 Preparation - Set 6
Question # 1
In a right angled triangle length of base is 4cm and its perpendicular is 3cm.
- Ans 1: length of its hypotenuse, cos , sin, tan,
9th Class Physics English Medium Chapter 4 Preparation - Set 7
Question # 1
Why a body does not regain its previous state in unstable equilibrium
- Ans 1: Because in this state centre of gravity of body is at highest position.
9th Class Physics English Medium Chapter 4 Preparation - Set 8
Question # 1
Differentiate between like and unlike forces.
- Ans 1: Like parallel forces: such a parallel forces whoe direction is same are called like parallel force. Example: the weights of apples in a sack are parallel to each other and also in the same direction.
- Ans 2: Unlike parallel forces.:Such parallel forces which are opposite to each other are called unlike parallel forces. Example: Two forces acting on a steering wheel to turn it are unlike parallel forces.
9th Class Physics English Medium Chapter 4 Preparation - Set 9
Question # 1
Define resultant of forces and explain by diagram
- Ans 1: Resultant of forces: A resultant force is a single force that has the same effect as the combined effect of all the force to be added
- Ans 2: Explanation: The Resultant of two forces A and B can be find by Head to Tail rule First select a suitable scale Draw the vectors of all the forces according to the scale.
9th Class Physics English Medium Chapter 4 Preparation - Set 10
Question # 1
Give an example of a moving body which is in equilibrium.
- Ans 1: WA paratrooper coming down with the constant speed is in equilibrium as well as in motion.
9th Class Physics English Medium Chapter 4 Preparation - Set 11
Question # 1
How a force can be resolved into its prependicular components
- Ans 1: To resolve a force into its perpendicular components we neend head to tail rule. It the given forces is considered as resultant force then the two components can be drawn In the figure force F is making an angle 0 with horizontal surface and it is resolved into Fx and Fy which are horizontal and vertical components respectively.
9th Class Physics English Medium Chapter 4 Preparation - Set 12
Question # 1
What is line of action of force.
- Ans 1: A line along which a force acts is called line of action of the force.
9th class Physics Chapter 4 (English Medium)
Here you can prepare 9th Physics Chapter 4 online Short Questions Preparation (Turning Effect of Forces). Click the button for 100% free full Preparation.
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