11th Physics Monthly Test - 4 ( Gravitation )

MABS Institution

11th Physics Monthly Test - 4 ( Gravitation )-Aug 2020

Time : 2.00 Hours

Part - A

Generic 5 - Answer All Question

Consider four masses m₁, m₂, m₃, and m₄arranged on the circumference of a circle as shown in figure below

Calculate
(a) The gravitational potential energy of the system of 4 masses shown in figure.
(b) The gravitational potential at the point O due to all the 4 masses

Explain in detail the Eratosthenes method of finding the radius of Earth.

Prove that at points near the surface of the Earth, the gravitational potential energy of the object is U = mgh.

Explain the variation of g with altitude.

Explain the variation of g with depth from the Earth’s surface.

Explain how geocentric theory is replaced by heliocentric theory using the idea of retrograde motion of planets.

Qualitatively indicate the gravitational field of Sun on Mercury, Earth, and Jupiter shown in figure.

Moon is the natural satellite of Earth and it takes 27 days to go once around its orbit. Calculate the distance of the Moon from the surface of the Earth assuming the orbit of the Moon as circular

Derive the expression for gravitational potential energy.

Derive the time period of satellite orbiting the Earth.

Explain how Newton verified his law of gravitation.

Drive the relation between g and Gravitational constant.

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11th Physics Monthly Test - 4 ( Gravitation )

MABS Institution

11th Physics Monthly Test - 4 ( Gravitation )-Aug 2020

Part - A

Generic 5 - Answer All Question

Consider four masses m1, m2, m3, and m4 arranged on the circumference of a circle as shown in figure below Calculate (a) The gravitational potential energy of the system of 4 masses shown in figure. (b) The gravitational potential at the point O due to all the 4 masses

Explain in detail the Eratosthenes method of finding the radius of Earth.

Prove that at points near the surface of the Earth, the gravitational potential energy of the object is U = mgh.

Explain the variation of g with altitude.

Explain the variation of g with depth from the Earth’s surface.

Explain how geocentric theory is replaced by heliocentric theory using the idea of retrograde motion of planets.

Qualitatively indicate the gravitational field of Sun on Mercury, Earth, and Jupiter shown in figure.

Moon is the natural satellite of Earth and it takes 27 days to go once around its orbit. Calculate the distance of the Moon from the surface of the Earth assuming the orbit of the Moon as circular

Derive the expression for gravitational potential energy.

Derive the time period of satellite orbiting the Earth.

Explain how Newton verified his law of gravitation.

Drive the relation between g and Gravitational constant.

Comment

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Tamilnadu Stateboardszs - Class

Consider four masses m₁, m₂, m₃, and m₄arranged on the circumference of a circle as shown in figure below

Calculate
(a) The gravitational potential energy of the system of 4 masses shown in figure.
(b) The gravitational potential at the point O due to all the 4 masses