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प्रश्न
Draw a diagram to show the energy changes in an oscillating simple pendulum. Indicate in your diagram how the total mechanical energy in it remains constant during the oscillation.
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उत्तर
The diagram shows a freely oscillating pendulum.
In position A, it has max. P.E. and zero K.E.
In position B, it has zero P.E. and max. K.E.
In position C, it has a max. P.E. and zero K. E.
Thus, the experiment clearly proves that the sum of the total energy is conserved, but it can change its form.
संबंधित प्रश्न
(i) The conversion of part of the energy into an undesirable form is called ______________.
(ii) For a given height h, __________________ the length l of the inclined plane, lesser will be the effort required.
Name the type of energy (kinetic energy K or potential energy U) possessed in the given cases:
A compressed spring
What is the main source of energy for earth?
State two disadvantages of producing electricity from solar energy.
What is hydro energy?
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.
What kind of energy is possessed in a situation when?
Water stored in dams.
Give one example when:
Electrical energy to heat energy.
Ocean thermal energy is due to
