Karteikarten
IB Physics Topic 10 Fields
Karten in diesem Stapel (15)
- 1Gravitational FieldA gravitational field is a region of space where a test mass experiences a force due to another mass.
- 2Electrostatic FieldsAn electrostatic field is a region of space where a small positive test charge experiences a force per unit charge.
- 3Electric PotentialElectric potential is the work done per unit charge
- 4Potential DifferencePotential difference is the difference in electric potential between two points in an electric field.
- 5Work Done to move a charge from one point to another
- 6Gravitational PotentialThe work done per unit mass against the field to move a point mass from infinity to that point.
Measured in J kg-1 - 7Equipotential LinesPoints with the same gravitational potential can be joined together to form an equipotential surface.
Equipotential lines are perpendicular to field lines.
The density of lines is proportional to the field strength. - 8How can something be in orbit?For something to be in orbit it must have two things:
A centripetal force, caused by the gravitational force acting between the object orbiting and the object being orbited.
To be moving at a high speed. - 9Period Derivative
- 10Energy of an orbit
- 11Escape Velocity Energy
- 12Electric Potential EnergyWhere k is Coulomb's constant, Q is the fixed charge, q is the test charge and r is the radius.
- 13Definition of Electric Potential EnergyElectric potential energy is the capacity for doing work by a change in position of the positive test charge.
- 14Why is potential difference required?Potential difference across an electrical component is required to make a current flow through it.
- 15What is the inverse square law?1/x^2
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- Karteikarten am IB Physics Topic 10 Fields, erstellt von Draco Maleficus am 29/09/2021.
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