Physics - Electricity

Beschreibung

National Five physics electricity unit summarised.
dana-howbridge
Mindmap von dana-howbridge, aktualisiert more than 1 year ago
dana-howbridge
Erstellt von dana-howbridge vor mehr als 9 Jahre
792
28

Zusammenfassung der Ressource

Physics - Electricity
  1. Charge
    1. When a charge is placed near a charged object, it will experiance a force.
      1. 1C=1As-1
      2. Conductors
        1. Metals, carbon
        2. Insulators
          1. Glass, plastic, wood
          2. current is the flow of electrons
            1. 1A= 1Cs-1
            2. Voltage is the amount of electrical energy given to electrons by the battery
              1. 1V=1JC-1
              2. Resistance is material opposes current
                  1. V=IR
                    1. The higher the resistance the smaller the current
                    2. Series circuit
                      1. The current is the same at different positions
                        1. Vs=V1+V2+V3
                          1. Rt=R1+R2+R3
                          2. Parallel circuit
                            1. I=I1+I2+I3
                              1. The voltage across the resistors is the same
                                1. 1/Rt=1/R1+1/R2+1/R3
                                2. Changes energy into electrical energy
                                  1. Microphone
                                    1. Thermocouple
                                      1. Solar cell
                                        1. Thermistor
                                          1. LDR
                                          2. Changes electrical energy into different energy
                                            1. Loudspeaker
                                              1. Motor
                                                1. Lamp
                                                  1. LED
                                                  2. A capacitor is a device which can store charge
                                                    1. Transistors
                                                      1. MOSFET
                                                        1. Turns on at 2V
                                                          1. NPN
                                                            1. Turns on at 0.7 V
                                                            2. Power is the change of energy over time
                                                              1. Mains supply is 230V
                                                                1. P=E/T
                                                                  1. 1W=1J/S
                                                                2. AC is current that travels in both directions
                                                                  1. 50HZ in Britain
                                                                    1. Current changes direction 50 times per second
                                                                  2. Direct current is when current flows in one direction
                                                                    1. R1/R2=V1/V2
                                                                      1. conduction is heat transfer in solids
                                                                        1. convection- liquids and gases
                                                                          1. Work done is when energy changes into another form of energy
                                                                            1. Ew=Fxd
                                                                            2. Pessure is the force an object exerts over an area
                                                                              1. P=F/a
                                                                              2. P1/T1=P2/T2
                                                                                1. P1V1=P2V2
                                                                                  Zusammenfassung anzeigen Zusammenfassung ausblenden

                                                                                  ähnlicher Inhalt

                                                                                  Know the principles of electricity
                                                                                  Vito Martino
                                                                                  Electricity
                                                                                  ShreyaDas
                                                                                  Renewable Energy Sources
                                                                                  darkangelforgiven
                                                                                  Principles of basic electrical circuits
                                                                                  Vito Martino
                                                                                  AQA Physics P1 Quiz
                                                                                  Bella Statham
                                                                                  GCSE AQA Physics - Unit 3
                                                                                  James Jolliffe
                                                                                  Using GoConqr to study science
                                                                                  Sarah Egan
                                                                                  GCSE AQA Physics 1 Energy & Efficiency
                                                                                  Lilac Potato
                                                                                  Waves
                                                                                  kate.siena
                                                                                  Forces and their effects
                                                                                  kate.siena
                                                                                  Junior Cert Physics formulas
                                                                                  Sarah Egan