Advertisements
Advertisements
प्रश्न
Write true or false of the following statement.
In an electric fan, electrical energy changes into the mechanical energy.
विकल्प
True
False
उत्तर
True.
APPEARS IN
संबंधित प्रश्न
Match the following columns
| COLUMN A | COLUMN B |
| 1. Running water | 1. heat energy |
| 2. Burning | 2. vibrations |
| 3.Energy | 3.atom bomb |
| 4.Sound energy | 4.kinetic energy |
| 5.Nuclear energy | 5.joule |
Select the correct alternatives
When we rub our hands
State two factors on which the potential energy of a body at a certain height above the ground depends.
Answer the following in a word or two or in a sentence.
Write the formula for calculating the efficiency of a machine.
What is the common name of '1 kWh' of electrical energy?
A certain household consumes 650 units of electricity in a month. How much is this electricity in joules?
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?
Running water possesses ______.
Write the type of energy.
