HARD
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What is the primary energy transformation in a solar panel?

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Important Questions on Work, Energy and Power

MEDIUM
Which of the following devices converts chemical energy to electrical energy?
EASY
What happens to the total mechanical energy in an ideal system?
MEDIUM

What is generated in a solar cell, when sunlight strikes the semiconductor material?

HARD
What happens to kinetic energy if the velocity of an object is doubled?
MEDIUM
Which energy transformation takes place in an electric bulb?
HARD
What type of energy transformation occurs in a hydropower plant?
HARD
Which energy transformation occurs in photosynthesis?
MEDIUM
Which of the following energy transformation takes place in a photo cell?
MEDIUM

Which two methods are commonly used to convert solar energy into electrical energy?

MEDIUM
Which form of energy is stored in a stretched rubber band?
EASY
Which of the following is an example of chemical energy?
HARD
What type of energy transformation occurs in a loudspeaker?
MEDIUM

Which one of the following principles is used for directly generating an electric current using sunlight?

HARD
In an ideal pendulum, at what point is potential energy maximum?
EASY

The _____ energy stored in the wood gets converted into heat and light energies when it is burnt.

EASY
Which type of energy is produced by the movement of electric charges?
EASY
What form of energy is possessed by a hot cup of tea?
HARD
In a coal-fired power plant, which energy transformation occurs first?