Physics P2 Summary

HideShow resource information
View mindmap
  • Physics P2
    • Velocity and Distance-Time graphs
      • Speed= How FAST you are going
      • Velocity= The DIRECTION you are going
      • Speed= Distance / Time
      • Gradient=Speed
      • Calculating gradient: Speed= gradient= vertical / horizontal
    • Acceleration
      • Acceleration=   Change in velocity / Time taken
      • Acceleration=gradient= vertical change / horizontal change
    • Weight, Mass and Gravity
      • Weight= mass x gravitational field strength
      • Weight = Caused by the pull of the gravitational force.
      • Mass= Amount of 'stuff' in an object
      • Gravity= 10N/kg
    • Resultant Forces
      • Overall  force on a point or object
      • Forces have to balance
      • Change in velocity
    • Forces and Acceleration
      • If the resultant force on an object that is stationary is zero, it will remain stationary
      • If there is no resultant force on a moving object it'll just carry on moving at the same velocity
      • If there is a non-zero resultant force, the object will accelerate in the direction of the force
      • Force= mass x acceleration
      • When two objects interact, they exert opposite and equal forces
    • Frictional force and Terminal Velocity
      • Friction  slows things down
      • Drag increases as the speed increases
      • Objects falling through fluids reach a Terminal Velocity
      • Terminal Velocity of an object depends on shape and area
    • Stopping Distances
      • Factors affecting Thinking Distance
        • Factors affecting Braking Distance
          • Stopping Distances
            • Factors affecting Thinking Distance
              • Factors affecting Braking Distance
                • Speed
                • How good your brakes are
                • How good the tyres are
                • How good the grip is
              • Speed
              • Whether you are under the influence of drugs
          • Speed
          • How good your brakes are
          • How good the tyres are
          • How good the grip is
        • Speed
        • Whether you are under the influence of drugs
    • Work and Potential Energy
      • When a force moves an object through a distance, energy is transferred and Work is Done
      • Work Done= Force x Distance
      • Gravitational Potential Energy= mass x g x height
    • Kinetic Energy
      • Kinetic Energy= 1/2 x mass x speed2
      • Kinetic energy transferred= Work done by brakes
      • Kinetic energy GAINED = Potential Energy LOST
      • Falling objects convert Ep into Ek
    • Power
      • Power= Work Done (or energy transferred) / Time taken
      • Watts
    • Momentum and Collisions
      • Momentum= mass x velocity
      • Momentum before = Momentum after
    • Car Design and safety
      • Crumple Zones:
      • Side Impact Bars
      • Seat belts
      • Air Bags
    • Static Electricity
      • Van der Graff
      • Like charges repel, Opposite charges attract
      • Only the electrons move - Never the positive charges
      • Friction
    • Current and Potential Difference
      • The greater the resistance across a component, the smaller the current that flows
      • Current= Charge / Time
      • Potential difference = Work done / Charge
    • Circuits
      • Ammeter
        • Measures current (amps)
        • Series circuit only
        • Can be put anywhere in the circuit, but never parallel like the voltmeter
      • Volltmeter
        • Measures the P.d
        • Must be placed in parallel around the component under test
    • Resistance
      • Potential Difference= Current x Resistance
      • The current through a resistor (at constant temp)   is directly proportional to P.D. Different resistors have different resistances, hence the different slopes
      • As the temperature of the filament increases, the resistance increases, hence the curve
      • Current will only flow through a diode in one direction
    • Series Circuits
      • P.D is shared
      • Current is same everywhere
      • Resistance adds up
      • Cell voltages add up
    • Parallel Circuits
      • P.D is the same across all components
      • Current is shared between branches
    • Mains Electricity
      • AC
      • Frequency=1 / Time Period
    • Electricity in the Home
      • Hazards
      • Three-pin plug
      • Safety features
    • Fuses and Earthing
      • Prevent electrical overloads
      • Insulating materials make appliances Double Insulated
      • RCCB
    • Energy and Power in circuits
      • Energy Transferred= Power rating x time
    • Power and Energy change
      • Power= Current x Potential difference
      • Energy transformed= Charge x Potential differencc
    • Atomic structure
      • Rutherfordand Marsden Scattering experiment
    • Atoms and Ionisation
      • Background radiation
      • Alpha, Beta and Gamma
    • Half Life
      • The average time it takes for the number of nuclei in a radioactive isotope sample to halve
      • / 2
    • Radiation
      • Uses of Radiation
        • Smoke detectors (Alpha)
        • Tracers (Short life Beta or Gamma)
        • Radiotherapy (Gamma)
        • Sterilising ood and surgical instruments
    • Nuclear Fission
      • The splitting of big atomic nuclei
    • Nuclear Fusion
      • The joing of small atomic nuclei
    • The life cycle of stars
      • Stars same size  as sun
        • Red Giant
        • White Dwarf
      • Stars bigger than the sun
        • Red Super Giant
        • Supernova
        • Neutron Star
        • Black Hole
      • Planetary Nebula
      • Protostar
      • Main Sequence Star
  • Static Electricity
    • Van der Graff
    • Like charges repel, Opposite charges attract
    • Only the electrons move - Never the positive charges
    • Friction
  • Energy Transferred= Power rating x time

Comments

Crystal Blue ♥

Sorry, its a big topic :/

Rachael_Stevens

This is really helpful. I just had a quick read through ready for a mock I have tomorrow, but I will definitely be coming back to this when it's closer to my GCSEs. And I will definitely be recommending to everyone here.

Thank you very much for creating this :)

Crystal Blue ♥

@Racheal_Stevens, 

Sorry for the extra late reply, I've been away for a while:/ You're very welcome! I'm glad it came into some good use and helped you out!

Similar Physics resources:

See all Physics resources »See all Electricity resources »