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Worksheetsgravitational field
Total questions: 12
Worksheet time: 11mins
Two isolated masses m1 and m2 are separated by a distance r. Which expression gives the gravitational field strength caused by m1 at m2?
G m1m2 / r
G m1 m2 / r2
G m1 / r2
G m2 / r2
As the distance between an object and Earth increases,
the gravitational constant G increases
the gravitational constant G decreases
the gravitational potential energy relative to Earth approaches infinity
the gravitational potential energy relative to Earth approaches zero
Newton's Universal Law of Gravitation explained about...
Gravitational force
Magnetic force
Centripetal force
what is the factors that affect gravitational force
mass, distance
speed, distance
momentum, mass
The discovery of “Universal Gravitation” is associated with:
Robert Hook
Isaac Newton
James Joule
Max Plank
Christian Huygens
The gravitational potential energy is zero at
just above the surface
the surface
infinity
just before infinity
Which equation shows the gravitational potential, ϕ ?
ϕ= − r2G M
ϕ = − rG M
ϕ = r2G M
ϕ = rG M
Gravitational potential energy, 𝑈 stored in a test mass 𝑚 placed at a distance 𝑟 from the center of planet 𝑀 is defined as the ____________ by gravitational force in bringing a test mass from infinity to that point.
energy
power
velocity
work done
Why does the Moon stay in its orbit at a constant distance from the Earth?
The Earths gravitational pull on the Moon is negligible at large distances.
The Earths gravitational pull on the Moon balances the Moon’s gravitational pull on the Earth.
The Earths gravitational pull on the Moon provides the weight of the Moon.
The Earth’s gravitational pull on the Moon provides the centripetal force that keeps the Moon moving in circular orbit around the Earth.
State Newton’s law of gravitation
every object in the universe attracts another object with a weight that is directly proportional to the product of masses of both the objects and it is inversely proportional to the square of the speed between them.
every object in the universe attracts another object with a force that is directly proportional to the product of masses of both the objects and it is inversely proportional to the square of the distance between them.
every object in the universe attracts another object with a force that is directly proportional to the product of masses of both the objects and it is inversely proportional to the square of the acceleration between them.
every object in the universe attracts another object with a speed that is directly proportional to the product of masses of both the objects and it is inversely proportional to the square of the distance between them.
Which one of the following could be a unit of gravitational potential?
N
J
N kg–1
J kg–1
