Work and Energy-Important Questions

1.   Derive the formula for potential energy.

2.   Explain the Law of conservation of energy with pendulum.

3.   If energy is neither created nor destroyed then from where do we get energy?

4.   State and explain one example where kinetic energy is present in a body and is used.

5.   Define power and give its unit.

6.   What is potential energy? Explain different types of potential energy.

7.   How is work and energy related to each other?

8.   Give one example where work done on an object is negative.

9.   A man does 60 J of work in 6 seconds. Calculate the power.

10.   Give one example where work done on an object is zero.