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XI Physics New Chap 7 Gravitation 77 Profound HOTS Truth Test Statements.
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XI Physics New Chap 7 Gravitation 77 Profound HOTS Truth Test Statements.
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XI Physics_New Chapter-7_GRAVITATION_[True or False Statement Questions]S# Statements [HOTS TEST] Find out the truth in them, if any. True/False
A satellite in a circular orbit has a total energy that is positive, with potential energy being
1
twice the magnitude of kinetic energy.
A spherical shell with spherically symmetric mass distribution repels an external particle,
2
pushing it away from the center, contrary to expectations.
Altitude increases acceleration due to gravity within Earth, while depth decreases it,
3
regardless of the body's mass.
Aryabhatta proposed that Earth is the center of the universe, with the Sun and planets
4
revolving around it.
As a comet follows its elliptical orbit, its parameters change without conserving angular
5
momentum.
Astronauts in space never face orientation problems due to the absence of gravity as a
6
reference direction; it has no effect on their orientation.
Astronauts in space ships always detect gravity, which prevents them from experiencing
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weightlessness during their journey.
Cavendish's experiment involved two small spheres, Si and S2, to measure the gravitational
8
constant by observing the rotation of a bar AB.
Changing a satellite's orbit from 2RE to 4RE requires no energy transfer, and there is no
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change in kinetic and potential energies.
Estimating the Sun's mass accurately is impossible using Kepler's third law based on Earth's
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orbital radius.
Galileo believed heavier objects fall faster due to their inherent gravitational attraction to
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Earth.
Gravitational force between a hollow spherical shell and a point mass outside depends on
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the shell's thickness.
Gravitational force on a rocket from Earth never becomes zero in space; it persists
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indefinitely.
Gravitational forces between objects follow a linear law, and the gravitational potential
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energy between two objects is given by GMm/r.
Gravitational intensity inside a hemisphere of uniform mass density points outward, away
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from the center of the hemisphere.
Gravitational intensity varies randomly, pointing in different directions both outside and
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inside a shell, making it unpredictable.
Gravitational interactions primarily depend on object size and color, potentially leading to
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equilibrium between objects.
Gravitational potential energy between two masses is U = G * (m1 * m2) / r, with U, G, m1,
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m2, and r defined.
Gravitational potential energy depends solely on the mass of the body, not its distance from
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the center of the Earth.
20 Gravitational potential energy is a vector quantity with a direction associated with it.
Gravitational potential energy measures the energy required to move an object from the
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Earth's surface to space, relative to zero potential energy on the surface.
Gravitational potential energy, V = G * (m1 * m2) / r, is infinite at r → infinity, and
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gravitational force exhibits chaotic behavior, challenging conventional beliefs.
Gravitational potential increases as one moves further from the Earth's surface, following a
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2/r relationship.
Gravitational shielding is easily achieved; a spherical shell effectively blocks all gravitational
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forces from acting on a particle inside, defying conventional wisdom.
Gravity decreases by half at half the Earth's radius or a height equal to it, creating a gravity
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gradient within Earth.
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