# 9.2 Gravitational Field And Potential

7 Questions | Total Attempts: 55  Settings  Gravity is the force that pulls objects towards each other where a body with more mass has a higher gravitational pull. The space between these bodies is what is referred as gravitational field of an object. Having covered this topic fully, test your understanding by taking the simple quiz below.

• 1.
Define Gravitational Potential Energy at point P.
• A.

Work done in moving 1Kg from the floor to a point P

• B.

Work done in moving a test mass from the floor to a point P

• C.

Work done in moving 1Kg from infinity to a point P

• D.

Work done in moving a test mass from infinity to a point P

• E.

Work done in moving a 1Kg from the the surface of the planet to a point P

• F.

Work done in moving a test mass from the surface of the planet to a point P

• 2.
Define Gravitational Potential at point P.
• A.

Work done per unit mass in moving small point mass from the floor to a point P

• B.

Work done in moving a test mass from the floor to a point P

• C.

Work done in moving small point mass from infinity to a point P

• D.

Work done per unit mass in moving small point mass from infinity to a point P

• E.

Work done in moving a small test mass from the the surface of the planet to a point P

• F.

Work done per unit mass in moving a test mass from the surface of the planet to a point P

• 3.
What is the field strength?
• A.

Force acting on a point mass

• B.

Force acting per unit mass on a point mass

• C.

Gravitational Potential Energy acting on a point mass.

• D.

Gravitational Potential Energy per unit mass acting on a point mass.

• 4.
How is the gravitational field strength related to the gravitational potential?
• A.

Gravitational field strength = gravitational potential

• B.

Gravitational field strength = gravitational potential energy

• C.

Gravitational field strength = gravitational potential gradient

• 5.
How can you calculate the potential at the surface of the earth?
• A.

Gravitational Potential = gravitational field strength

• B.

Gravitational Potential = (gravitational field strength)/(Radius of planet)

• C.

Gravitational Potential = (gravitational field strength)x (radius of planet)

• 6.
What is the relationship between equipotential lines and lines of force.
• A.

They are parallel to each other

• B.

They are equidistant

• C.

The are perpendicular to each other

• 7.
Describe the lines of equipotential near to a large mass.
• A.

Lines move radially away from the centre of the mass

• B.

Lines are concentric and spaced equidistant from each other

• C.

Lines are concentric and spaced further apart from each other as they move away from the centre of the mass.

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