State the laws of kinetic friction.

Important Questions on Mechanical Properties of Solids

HARD

11th Maharashtra Board

IMPORTANT

Physics>Chapter 6 - Mechanical Properties of Solids>Exercises>Q 3

State advantages of friction.

HARD

11th Maharashtra Board

IMPORTANT

Physics>Chapter 6 - Mechanical Properties of Solids>Exercises>Q 3

State disadvantages of friction.

HARD

11th Maharashtra Board

IMPORTANT

Physics>Chapter 6 - Mechanical Properties of Solids>Exercises>Q 3

What do you mean by brittle substance? Give any two examples.

HARD

11th Maharashtra Board

IMPORTANT

Physics>Chapter 6 - Mechanical Properties of Solids>Exercises>Q 4

Distinguish between Young’s modulus, bulk modulus and modulus of rigidity.

HARD

11th Maharashtra Board

IMPORTANT

Physics>Chapter 6 - Mechanical Properties of Solids>Exercises>Q 4

Define stress and strain. What are their different types?

HARD

11th Maharashtra Board

IMPORTANT

Physics>Chapter 6 - Mechanical Properties of Solids>Exercises>Q 4

What is Young’s modulus? Describe an experiment to find out Young’s modulus of material in the form of a long string wire.

HARD

11th Maharashtra Board

IMPORTANT

Physics>Chapter 6 - Mechanical Properties of Solids>Exercises>Q 4

Derive an expression for strain energy per unit volume of the material of a wire.

HARD

11th Maharashtra Board

IMPORTANT

Physics>Chapter 6 - Mechanical Properties of Solids>Exercises>Q 4

What is friction? Define coefficient of static friction and coefficient of kinetic friction. Give the necessary formula for each.