Advertisements
Advertisements
प्रश्न
When a body falls freely towards the earth, then its total energy
पर्याय
increases
decreases
remains constant
first increases and then decreases
Advertisements
उत्तर
remains constant
Explanation:
When a body falls freely towards the earth, its potential energy decreases which in turn increases the kinetic energy. Therefore, its total energy remains constant.
APPEARS IN
संबंधित प्रश्न
A certain household has consumed 250 units of energy during a month. How much energy is this in joules?
Write true or false of the following statement.
One form of energy cannot be converted into another form.
State the unit of energy and define it.
Define the term efficiency of a machine.
Can you tell?
When can we say that displacement has taken place?
We make useful objects from a variety of substances. Another use of substances is that we get energy from some of them.
There is a car. Its tank is full of fuel but it does not move. Why is that?
We make useful objects from a variety of substances. Another use of substances is that we get energy from some of them.
When we have run a long distance, we feel tired. We have to stop. Why is that?
Find out the form of energy possessed by the following thing.
A rock on the top of a hill
Which one of the following is not the unit of energy?
Define kilowatt hour.
