# Fields

• Created by: Antoniadf
• Created on: 22-04-18 15:29
Gravitational Field
A feld created around any object with mass extending to infinity but diminishing with distance.
1 of 18
Gravitational Field strength
Force (gravitational) per unit mass at a point in a g field
2 of 18
Gravitational field lines
Lines of force used to map field pattern around object
3 of 18
Radial Field
Symmetrical field that diminishes with distacne^2 form centre
4 of 18
Uniform Gravitational Field
Field lines are parallel and value for g is constant
5 of 18
Newton's Law of Gravitation
The force between 2 point masses is dircelty proportional to the product of the masses and inversely proportional to the square to the distance between them.
6 of 18
Kepler's 1st law
The orbit of a planet is an ellipse with the sun at one of the two foci.
7 of 18
Aphelion
The furthest point from the sun in an orbit
8 of 18
Perihelion
The closet point to the sun in an orbt
9 of 18
Kepler's 2nd Law
A line segement connecting a planet to the sun sweeps out equal areas during equal time intervels.
10 of 18
Kepler's 3rd Law
The square of the orbital period is directly proportional to the cibe of its orbital radius.
11 of 18
Astronomical Unit
The mean distance from the earth to the sun (1.5 x 10^11)
12 of 18
Geostationary Satellites
A satellite that travels above equator at same point in direction of earth's rotation with a period of 24hrs.
13 of 18
Gravitational potential
The work done per unit mass to bring an object from infinity to a point in a g field.
14 of 18
Escape velocity
The minimum velocity at which an object has just enough energy to leave a g field.
15 of 18
Electric field strength
The force experienced per unit positive charge
16 of 18
Coulomb's Law
Any two point charges exert an electrostatic force on each other directly proportional to the product of their charges and inversely proportional to the square of their separation.
17 of 18
Electric Pontential
The work done per unnit positive charge to bring a charge from infinity to a point in an e field.
18 of 18

## Other cards in this set

### Card 2

#### Front

Force (gravitational) per unit mass at a point in a g field

#### Back

Gravitational Field strength

### Card 3

#### Front

Lines of force used to map field pattern around object

### Card 4

#### Front

Symmetrical field that diminishes with distacne^2 form centre

### Card 5

#### Front

Field lines are parallel and value for g is constant

## Comments

No comments have yet been made

## Similar Physics resources:

See all Physics resources »See all Gravitational fields resources »