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Class 9 Physics Chapter 1 Quiz

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Questions and Answers

What is the main subject of Class 9 Physics Chapter 1?

Electricity and Magnetism

Sound and Waves

Light and Optics

Motion and Force (correct)

What is the focus of Class 9 Physics Chapter 1 when discussing force?

Force in chemical reactions

Net force and its effects on motion (correct)

Electromagnetic force in circuits

Force in atomic nuclei

Which of the following topics is NOT covered in Class 9 Physics Chapter 1?

Work and Energy

Friction

Pressure and Buoyancy

Gravitation (correct)

In Class 9 Physics Chapter 1, what is the definition of force?

Force is the push or pull on an object due to its interaction with another object Signup and view all the answers

Which of the following is an example of a contact force?

Friction between a book and a table Signup and view all the answers

In Class 9 Physics Chapter 1, what is the SI unit of force?

Newton Signup and view all the answers

What is the SI unit of force?

Newton Signup and view all the answers

Which of the following is an example of a non-contact force discussed in Class 9 Physics Chapter 1?

Magnetic force Signup and view all the answers

What is the main subject of Class 9 Physics Chapter 1 when discussing motion?

Speed and displacement Signup and view all the answers

Study Notes

Class 9 Physics Chapter 1

The main subject of Class 9 Physics Chapter 1 is Motion and Force.

Force

The focus of Class 9 Physics Chapter 1 when discussing force is on its definition, types, and units.
The definition of force is a push or pull that causes an object to change its motion or shape.
Contact forces are forces that arise from physical contact between objects.
Friction is an example of a contact force.
Non-contact forces are forces that do not require physical contact between objects.
Gravitational force is an example of a non-contact force discussed in Class 9 Physics Chapter 1.
The SI unit of force is Newton (N).

Motion

The main subject of Class 9 Physics Chapter 1 when discussing motion is the basic concepts of motion.
No detailed information on motion is available in the provided text.