Zusammenfassung der Ressource
Reflection and Refraction
- waves can be reflected
- when a wave hits a
boundary some of its
energy can be reflected
- angles of reflection are equal to the
angle of incidence
- its reflected because of change in density
- water is denser than air
- when a wave reaches a
different density some of the
wave is reflected at the
boundry
- Waves can be refracted
- em waves travel
slower in denser
medians
- sound waves
travel faster
in denser
medians
- light rays bend towards
the normal because
they slow down.
- light rays bend away from
the normal because they
speed up
- Real images
- a real images is where the light from
an images joins together to form an
image on a screen.
- virtual images
- rays are diverging so the object
appears to be coming from a
different location.
- mirrors
- magnifying