Advertisements
Advertisements
प्रश्न
What kind of energy is possessed by the following?
Water stored in the reservoir of a dam __________.
Advertisements
उत्तर
Water stored in the reservoir of a dam possesses gravitational potential energy.
संबंधित प्रश्न
State the condition under which the mechanical energy is conserved.
Is energy a vector quantity?
State whether the object possess kinetic energy, potential energy, or both :
A flying aeroplane _______________.
State whether the object possess kinetic energy, potential energy, or both :
A bird running on the ground ____________.
What kind of energy is possessed by the following?
A compressed spring ____________.
What kind of energy is possessed by the following?
A stretched rubber band _____________
Fill in the blank with suitable word :
The sum of the potential and kinetic energies of a body is called __________ energy.
What type of energy is possessed : by the stretched rubber strings of a catapult?
A boy weighing 40 kg makes a high jump of 1.5 m.
What is his kinetic energy at the highest point?
A boy weighing 40 kg makes a high jump of 1.5 m.
What is his potential energy at the highest point? (g = 10 m/s2)
Define the term 'energy' of a body. What is the SI unit of energy.
Water stored in a dam possesses ______.
Name the device or machine which convert :
Chemical energy into electrical energy.
Name the device or machine which convert :
Electrical energy into light energy.
Name the device or machine which convert :
Heat energy into kinetic energy (or mechanical energy).
How much electrical energy in joules does a 100 watt lamp consume : in 1 minute?
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 ball falls to the ground as shown below :
What is the potential energy of ball at B?
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)
