11a Gravitational Fields Quiz physics alevel edexcel

Accrete is a term used in astrophysics to describe:

• The process of objects moving away from each other

• The process of objects coming together due to gravitational attraction

• The process of objects spinning on their axis

• The process of objects emitting light

The gravitational field around a massive object:

• Points away from the object

• Points towards the object

• Points perpendicular to the object's surface

• Points parallel to the object's surface

In comparison to electrical fields, gravitational fields:

• Are always attractive

• Are always repulsive

• Can be attractive or repulsive depending on the charges involved

• Are unrelated to charges

A radial field:

• Points perpendicular to the surface of a mass

• Points towards the center of a mass

• Points away from the center of a mass

• Points parallel to the surface of a mass

Gravitational potential at a point in space represents:

• The energy required to move a unit mass from infinity to that point

• The energy required to move a unit mass from that point to infinity

• The gravitational force at that point

• The gravitational acceleration at that point

Newton's gravitational force equation states that the force between two masses is:

• Directly proportional to the product of their masses and inversely proportional to the square of the distance between them

• Inversely proportional to the product of their masses and directly proportional to the square of the distance between them

• Inversely proportional to the product of their masses and inversely proportional to the square of the distance between them

• Directly proportional to the product of their masses and directly proportional to the square of the distance between them

An orbit is:

• The path of an object as it moves through space

• The path of an object as it moves through a gravitational field

• The path of an object as it moves through an electric field

• The path of an object as it moves through a magnetic field