Physics 3

Physics 3

1. leavers

   • leavers are a simple machine the can be used to decrease or increse force
   • As weight increased the force increases 
   • Moments can turn clock wise or anti clock wise 
   • when a leave i balances the clock wise and anti clockwise will the same
   • Theequation for this is m=f*d
   • READ NOTES GIVEN
   • Longer leaver = more force or more mass added

2. Light Waves

   • What do they travel in ?
   • Transverse waves 
   • The Law of reflection= The angle of reflection is equal to the angle of incidence
     • r=i
     • Refraction A wave bends meaning it changes angles as it passes through a different density substances