Advertisements
Advertisements
प्रश्न
What type of energy is possessed : by the stretched rubber strings of a catapult?
Advertisements
उत्तर
The stretched rubber string of a catapult possesses potential energy, as the work done to change the shape of the rubber string is stored in it.
APPEARS IN
संबंधित प्रश्न
Does the transfer of energy take place when you push a huge rock with all your might and fail to move it? Where is the energy you spend going?
What kind of energy is possessed by the following?
A running car ____________
What kind of energy is possessed by the following?
A compressed spring ____________.
Fill in the blank with suitable word :
The sum of the potential and kinetic energies of a body is called __________ energy.
Give two examples where a body possesses both, kinetic energy as well as potential energy.
Name the device or machine which convert :
Chemical energy into electrical energy.
Five electric fans of 120 watts each are used for 4 hours. Calculate the electrical energy consumed in kilowatt-hours.
What do you understand by the term 'transformation of energy"? Explain with an example.
Name the energy transfers which occur when : a torch is on
A body of mass 10 kg falls from a height of 20 m to 8 m. Calculate:
- the loss in potential energy of the body, and
- the total energy possessed by the body at any instant? (Take g = 10 m s-2)
