Flashcards
CCEA Physics A2 Unit 2 Definitions
Cards in this deck (20)
- 1Field of a forceregion of space within which objects with a particular property experience a force
- 2Gravitational Fielda region of space pf space within which a mass will experience a force
- 3Electrical FieldA region of space within which a charge will experience a force
- 4Magnetic FieldA region of space within which a moving charge will experience a force
- 5Gravitational Field StrengthForce produced on test mass of 1kg placed at that point in a field
- 6Newton's Law of Universal GravitationBetween every two point masses there exists an attractive gravitational force which is directly proportional to the product of the mass of each and is inversely proportional to the square of their separation.
- 7Geostationary SatelliteOrbits in equatorial plane
Period = 24hrs
Angular velocity = earth's equator
Same direction as earths rotation - 8Electrical Field StrengthEqual to the force produced on a test charge of +1 C at that point in the field
- 9Columb's LawBetween every two point charges there exists an electrical force which is directly proportional to the charge of each and inversely proportional to the square of their separation.
- 10CapacitorA device which stores charge
- 11CapacitanceCharge stored per volt
- 12Time Constant of CapacitanceTime taken for the current/charge/pd to reach 1/e of the original value
T = CR - 13Magnetic FieldA region surrounding a magnet where a magnetic force is experienced
- 14Magnetic Flux DensityUsed to indicate strength of a magnetic field.
Force per unit carrying charge - 15Magnetic Flux DensityNo. of lines in a unit area
- 16WeberMagnetic flux linking a one turn coil producing 1V per second
- 17TeslaMagnetic flux density required to produce a 1N force on a 1m long wire with 1A glowing through it placed perpendicular to the magnetic field
- 18Faraday's LawThe magnitude of the induced EMF is equal to the rate of change of magnetic flux linkage
- 19Lenz's LawThe direction of the induced current is such that it opposes the change in the magnetic flux that is producing it.
- 20OscilloscopeInstruments that allow voltage to be as a graph with voltage on the y-axis against time on the x-axis
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- List of CCEA Physics A2 Unit 2 Definitions and laws
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- pmce1997
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