Gravtational Fields Part 1

Question 1

Define field in physics (3)

Answer 1

-field is a region of space
-in which an object can exert a force on a separate object
-because of a certain property they both possess

Question 2

State an example of a vector field (3)

Answer 2

-example: Mass
-if an object possess mass then there is a gravitational field around it
-and there will be a gravitational force exerted on another massive object placed in the field

Question 3

Define scalar field (2)

Answer 3

-the presence of a physical quantity
-at each point in a space

Question 4

Define uniform field (2)

Answer 4

-a uniform field is a field where the field lines all point in approximately the same direction

Question 5

Provide an example of field lines (2)

Answer 5

-earth
-gravitational field around earth is approximately uniform near to the surface of the planet

Question 6

Define radial fields (2)

Answer 6

-are fields where all the field lines
-or lines of force point towards the centre of a circle or sphere