Advertisements
Advertisements
प्रश्न
Fill in the blank with suitable word:
The electricity meter installed in our homes measure electrical energy in the units of ___________.
उत्तर
The electricity meter installed in our homes measure electrical energy in the units of kilowatt- hour.
APPEARS IN
संबंधित प्रश्न
A ball is placed on a compressed spring. What form of energy does the spring possess? On releasing the spring, the ball flies away. Give a reason.
In what way does the temperature of water at the bottom of a waterfall differ from the temperature at the top? Explain the reason.
A body falls freely under gravity from rest. Name the kind of energy it will possess while falling.
Is energy a vector quantity?
State whether the object possess kinetic energy, potential energy, or both :
A ceiling fan in the off position ______________
Fill in the blank with suitable word :
The ability of a body to do work is called __________. The ability of a body to do work because of its motion is called __________.
Name the device or machine which convert :
Electrical energy into heat energy.
Name the energy transfers which occur when : a torch is on
A body of mass 10 kg at rest is acted upon simultaneously by two forces 4 N and 3 N at right angles to each other. The kinetic energy of the body at the end of 10 s is
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)
