Advertisements
Advertisements
Question
Advertisements
Solution
Whenever one form of energy dissipates or disappears, another form of equivalent amount of energy is produced; this is referred to as transformation of energy.
E.g. when a particular switch is pressed electric lamps light up owing to the heat produced in the filament. This is the transformation of electrical energy to heat and light energy.
APPEARS IN
RELATED QUESTIONS
Calculate the change in the Kinetic energy of a moving body if its velocity is reduced to 1/3rd of the initial velocity.
A cyclist doubles his speed. How will his kinetic energy change: increase, decrease or remain same ?
Name the physical quantity measured in terms of horse power.
Name the type of energy (kinetic energy K or potential energy U) possessed in the following case:
A piece of stone placed on the roof.
State two disadvantages of using nuclear energy for producing electricity.
Name the energy changes for the following:
pendulum
Write the type of energy possessed in the following case:
A moving cricket ball.
State two advantages and disadvantages of using nuclear energy for producing electricity.
State the energy changes which take place when:
A battery lighting up a bulb.
Two bodies, A and B of equal mass are kept at heights 20 m and 30 m respectively. Calculate the ratio of their potential energies.
