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Physics (igcse cambridge) end of year exam

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everything for the end of year exam
Julian Olsen
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Julian Olsen
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Physics (igcse cambridge) end of year exam
  1. Phsics formular
    1. density= mass/volume
      1. speed=distance/time
        1. acceleration=change in velocity/time taken
          1. Force=mass*acceleration
            1. Equilibrium is force on a pived is he same on bove sides
              1. Moment of a force = force*perpendicular distance from the pivot to force
                1. pressure=force/area
                  1. F=Kx (Hooke´s law)
                    1. g.p.e.=mg*h (gravitational potentual energy)
                      1. k.e.=1/2mv² (kinetic energy)
                        1. workdone= energy transferred
                          1. workdone= force *distence moved
                            1. W=F*d=^E
                            2. power=workdone/time taken
                              1. P=W/t
                              2. power=energy transferred/time taken
                                1. P=^E/t
                                2. wave speed: speed=frequancey *wavelength
                                3. bronian motion
                                  1. is smoke being hit bye are partials
                                  2. Thermometer
                                    1. two fixed points. mealting point (0°) and boiling point(100°)
                                    2. waves
                                      1. sound waves, speed is 330m/s (air). speed in solids is 1000 to 5000 m/s
                                        1. Hz is frequany of the wave
                                          1. more Hz higher pitch
                                            1. the 20Hz to 20kHz we can hier
                                              1. greater the amplitude, the louder the sound
                                                1. sound can not travel through a vacum
                                                  1. waves transfer energy without transferring matter
                                                  2. light
                                                    1. the speed of light in a vacuum is 3 million m/s

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