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प्रश्न
Give one example when:
Electric energy changes to sound energy.
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उत्तर
When a loudspeaker works, the electric energy changes to sound energy.
संबंधित प्रश्न
Write true or false of the following statement.
There is always some loss of energy in conversion from one form of energy to another form, so the total energy is not conserved.
Two toy-cars A and B of masses 500 g and 200 g respectively are moving with the same speed. Which of the two has the greater kinetic energy?
Give one relevant example for the following transformation of energy :
Electrical energy to light energy.
Name six different forms of energy?
Select the renewable and non-renewable sources of energy from the following:
Diesel
A pebble is thrown up. It goes to a height and then comes back on the ground. State the different changes in form of energy during its motion.
Calculate the decrease in the kinetic energy of a moving body if its velocity reduces to half of the initial velocity.
What do you understand by mechanical energy?
What is the main energy transformation that occur in:
Charging of a battery.
Can you tell?
What are the various forms of energy?
