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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
Differentiate between like and unlike forces
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Ans 1: Like Parallel forces: Such a parallel forces whose direction is same called are called like parallel forcesExample: The weights of apples in a sack are parallet to each other and also in the same direction.
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Ans 2: Unlike parallel forces which are opposite to each other are called unlike parallel forces.Example: Two force acting on a steering wheel to turn it are unlike parallel forces.
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
Differentiate between like and unlike forces
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Ans 1: Like Parallel forces: Such a parallel forces whose direction is same called are called like parallel forcesExample: The weights of apples in a sack are parallet to each other and also in the same direction.
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Ans 2: Unlike parallel forces which are opposite to each other are called unlike parallel forces.Example: Two force acting on a steering wheel to turn it are unlike parallel forces.
9th Class Physics English Medium Chapter 4 Preparation - Set 2
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 English Medium Chapter 4 Preparation - Set 3
Question # 1
Define like and unlike parallel forces
- Ans 1: Like parallel forces: Like parallel forces are the forces that are parallel to each other and have the same direction
- Ans 2: Unlike parallel forces: Unlike parallels forces are the forces that are parallel but have directions opposite to each other
9th Class Physics English Medium Chapter 4 Preparation - Set 4
Question # 1
Think of a body which is at rest but not in equilibrium
- Ans 1: A body thrown vertically upward at maximum height is at rest for a while but at that moment gravitational force
9th Class Physics English Medium Chapter 4 Preparation - Set 5
Question # 1
Why a body regain its previous state in stable equilibrium
- Ans 1: Because in stable equilibrium its centre of gravity is at the lowest position
9th Class Physics English Medium Chapter 4 Preparation - Set 6
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 7
Question # 1
How head to tail rule helps to find the resultant of forces
- Ans 1: When two forces are added with head to tail rule it gives the resultant of two forces, It gives the magnitude and direction both of the resultant force.
9th Class Physics English Medium Chapter 4 Preparation - Set 8
Question # 1
What is meant by Rigid body
- Ans 1: Rigid Body: A body is composed of large number of small particles. If the distance between all pairs of particles of the body do not change by applying of force the, it is called rigid body A rigid body is the one that is not deformed by force or forces acting on it
- Ans 2: Example: Object made by wooden or cardboard are example of rigid body
- Ans 3: Line of action of force: The line alone which a force acts is called the line of acting of the force.
9th Class Physics English Medium Chapter 4 Preparation - Set 9
Question # 1
Define parallel forces. Write n names of its types
- Ans 1: Parallel forces: Such forces which are parallel to each other are called parallel forces.
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Ans 2: Types: There are two types of parallel forces.Like parallel forces.Unlike parallel forces.
9th Class Physics English Medium Chapter 4 Preparation - Set 10
Question # 1
Where are the centre of gravity of uniform square and uniform triangular sheets.
- Ans 1: Centre of gravity of a square of a rectangular Square: The centre of a gravity of a uniform square or a rectangular sheet is the point of intersection of its diagonals
- Ans 2: Centre of gravity of a triangular sheet: The centre of a gravity of a uniform triangular sheet is the point of intersection of tis medians as shown in given figure
9th Class Physics English Medium Chapter 4 Preparation - Set 11
Question # 1
Define unstable equilibrium
- Ans 1: Unstable Equilibrium: If a body does not return to its previous position when set free after a slightest tilt is said to be in unstable equilibrium
- Ans 2: Example: A pencil just balanced at its tip with centre of gravity at the highest position is the example of unstable equilibrium.
9th Class Physics English Medium Chapter 4 Preparation - Set 12
Question # 1
A ladder leaning at a wall as shown in figure is in equilibrium how
- Ans 1: The weight of ladder produces anticlock wise torque. The wall pushes the ladder at its tope end thus produce a clockwise torque. Both torques are equal and opposite and cancel their effect. So, the ladder is in state of equilibrium.
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.
