UNIVERSE
SATELLITESICY BODIES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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negative binding energy
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positive total energy
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negative gravitational energy
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1/2 its kinetic energy
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Detailed explanation-1: -So the total energy is always negative. In the same way that electrons in an atom are bound to their nucleus, we can say that a planet is bound to the sun. It’s energy is negative so it doesn’t have enough energy to escape to infinity.
Detailed explanation-2: -The gravitational potential energy could even be negative if the object were to pass below the zero point. This doesn’t present a problem, though; we just have to be sure that the same zero point is used consistently in the calculation.
Detailed explanation-3: -In other words, it is gravity or gravitational force-related energy. There is negative potential energy in a device composed of a negative and a positive point-like charge. A negative energy potential means that in moving the charges apart, work must be performed against the electric field.
Detailed explanation-4: -The total energy of a circularly orbiting satellite is thus negative, with the potential energy being negative but twice is the magnitude of the positive kinetic energy. To learn more about gravitation and other related topics, download BYJU’S The Learning App.
Detailed explanation-5: -So, the energy required by a satellite to revolve around the earth is called its orbiting energy. Since this satellite revolves around the earth, it has kinetic energy and is in a gravitational field, so it has potential energy.