What i need to revise: Physics B7

Observing the sky:

• what a sidreal day is
• what a solar day is
• the movement of the sun and the moon
• basic information on stars

Eclipses and the moon:

• the phases of the moon
• what an eclipse is
• when they happen
• about eclipses
• difference between a solar eclipse and a lunar eclipse

Co-ordinates in astronomy:

• how stars are measured
• how you measure the positions of stars
• how planets move

Refraction:

• what refraction is
• difference between lenses (converging lens)
• prisms

Converging Lens:

• what converging lenses do
• drawing ray diagrams
• difference between sources

Telescopes:

• how telescopes work
• magnification equation
• concave mirrors

Diffraction and Telescopes:

• what diffraction is
• how to detect faint sources
• what aperture size is
• spectrums

Astronomical differences and brightnesses:

• how you can measure the distance of stars
• what observed intensity means
• what a cepheid…