UNIT - III
PART A - 2 MARK QUESTIONS
1.What is the significance of conservation laws in physics?
2.Define work and provide its SI unit
2.Define work and provide its SI unit
3.What are conservative forces? Give one example.
4.State the law of conservation of energy.
5.What is potential energy in a gravitational field?
6.Differentiate between conservative and non-conservative forces.
7.Explain the concept of power and provide its SI unit.
4.State the law of conservation of energy.
5.What is potential energy in a gravitational field?
6.Differentiate between conservative and non-conservative forces.
7.Explain the concept of power and provide its SI unit.
PART B - 5 MARK QUESTIONS
1.Explain the law of conservation of energy with an example in a gravitational field.
2.Describe the relationship between work, power, and energy.
3.Explain the concept of potential energy in an electric field and how it relates to conservative forces.
4.Discuss the difference between conservative and non-conservative forces.
5.Explain the concept of work done by a force and derive the formula for work done in moving an object over a distance.
PART C - 10 MARK QUESTIONS
1.Explain the law of conservation of energy in detail. Derive the general law of conservation of energy, including the concepts of work done by conservative and non-conservative forces.
2.Discuss the concepts of work, power, and energy in physics. Derive the formulas for work done by a constant force, power, and kinetic energy.
3.Explain the concept of mechanical energy and its conservation in a closed system. Derive the principle of conservation of mechanical energy, including the roles of kinetic and potential energy.
4.Describe the relationship between work and energy using the work-energy theorem. Derive the theorem and discuss its implications for kinetic energy.