Conservation of Energy
Conservation of Energy: Overview
This topic covers concepts, such as, Law of Conservation of Energy, Dissipation of Energy, Energy Efficiency & CFL Being Better than Incandescent Light Bulb etc.
Important Questions on Conservation of Energy
List any two examples involving dissipation of energy.
Explain dissipation of mechanical energy due to friction.
How energy is dissipated in an electric bulb?
Which of these are energy efficient than filament bulb for generating light.
Why CFL is better than light bulb ?
Explain the energy conversion in a thermal power plant.
In thermal power plant the thermal energy is created by burning of coal.
During car journey the chemical energy is converted to wasted thermal energy for overcoming friction.
In a car during its journey the most of the energy from the fuel is wasted as heat.
Sound is the most common form of waste energy.
_____ causes spatial damping of the sound waves.
The system is released from rest with both the spring in unstretched positions. Mass of each block is 1 kg and force constant of each spring is 10 N/m.
In the equilibrium position, speed of the block placed horizontally is
Total energy of an object falling freely towards earth will
What does the law of conservation of energy convey?
