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प्रश्न
Is energy a vector quantity?
उत्तर
No, energy is a scalar quantity as it has only magnitude.
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संबंधित प्रश्न
What kind of energy is possessed by the following?
Water stored in the reservoir of a dam __________.
What kind of energy is possessed by the following?
A compressed spring ____________.
A boy weighing 40 kg makes a high jump of 1.5 m.
What is his potential energy at the highest point? (g = 10 m/s2)
Water stored in a dam possesses :
Name the device or machine which convert :
Heat energy into kinetic energy (or mechanical energy).
Five electric fans of 120 watts each are used for 4 hours. Calculate the electrical energy consumed in kilowatt-hours.
What do you understand by the term 'transformation of energy"? Explain with an example.
Name the energy transfers which occur when :
someone speaks into a microphone
Name the energy transfers which occur when : a torch is on
A microphone converts :
