Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
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
-
Total Questions10
-
Available Sets12
Physics (New Book) - 9th Class Physics English Medium Chapter 4 Preparation
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
Prepare Complete Set Wise Questions For Chapter 4 "9th Class Physics English Medium Chapter 4 Preparation "
-
Set 1
10 Questions
Start -
Set 2
10 Questions
Start -
Set 3
10 Questions
Start -
Set 4
10 Questions
Start -
Set 5
10 Questions
Start -
Set 6
10 Questions
Start -
Set 7
10 Questions
Start -
Set 8
10 Questions
Start -
Set 9
10 Questions
Start -
Set 10
10 Questions
Start -
Set 11
10 Questions
Start -
Set 12
10 Questions
Start
9th Class Physics English Medium Chapter 4 Preparation - Set 1
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 2
Question # 1
What is meant by graph
- Ans 1: A graph is a diagram showing the relationship between variable quantities typically of two variables, each measured along a pair of axis at right angle.
9th Class Physics English Medium Chapter 4 Preparation - Set 3
Question # 1
What is Plumb line
- Ans 1: Plumb line: A plumb line consists of a small metal bob lead or brass supported by a string. When the bob is suspended freely by the string, it rests the vertical direction due to its weight acting vertically down ward.
9th Class Physics English Medium Chapter 4 Preparation - Set 4
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 5
Question # 1
Define couple and couple arm?
- Ans 1: A couple is formed by two unlike parallel forces of the same magnitude, but not along the same line
-
Ans 2: Couple arm:The perpendicular distance "r" between the two forces of the couple.
9th Class Physics English Medium Chapter 4 Preparation - Set 6
Question # 1
Differentiate between clockwise and anti-clockwise moment
-
Ans 1: Clockwise Moment: The force that trrns a spanner in the clockwise direction is known is clockwise force. The torque or moment of force produced to this force is called clockwise momentThe moment produced during tighten a nut
-
Ans 2: Anti-Clockwise moment: The force that turns a spanner in the anticlockwise direction is called known as anticlockwise force. The torque or moment of force is called anticlockwise momentThe moment produced during loosing a nut
9th Class Physics English Medium Chapter 4 Preparation - Set 7
Question # 1
Define equilibrium
- Ans 1: Equilibrium: A body is said to be in equilibrium if no net force acts on it. A body in equilibrium thus remains at rest or moves with uniform velcity
9th Class Physics English Medium Chapter 4 Preparation - Set 8
Question # 1
Define axis of rotation
- Ans 1: The line about which a body rotates is called axis of rotation
9th Class Physics English Medium Chapter 4 Preparation - Set 9
Question # 1
Why a body cannot be in equilibrium due to single force acting on it
- Ans 1: When a single force acts on a body acceleration and torque is produced due to this reason a body is not equilibrium.
9th Class Physics English Medium Chapter 4 Preparation - Set 10
Question # 1
Discuss centre of gravity of some symmetrical object
- Ans 1: Uniform rod, Square plate and rectangular plate, Uniform circular disc, Uniform solid sphere, Triangular plate, Uniform solid or hollow cylinder,
- Ans 2: centre of rod, point of intersection of diagonals, centre of disc, centre of sphere, point of intersection of medians, middle point of its axis
9th Class Physics English Medium Chapter 4 Preparation - Set 11
Question # 1
When a body is said to be in equilibrium?
- Ans 1: A body is said to be in equilibrium if no net force acts on it.
9th Class Physics English Medium Chapter 4 Preparation - Set 12
Question # 1
Define axis of rotation
- Ans 1: The line about which a body rotates is called axis of rotation
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.
