Cerrar
What is a sidereal day?
How long is a sidereal day?
What is a solar day?
How long is a solar day?
Why is a solar day longer than a side real day?
How long is a lunar month?
What is a solar eclipse?
What is a lunar eclipse?
Why are eclipses rare?
What planets can be seen with the naked eye?
Define 'Retrograde Motion'
True or false: Planets orbit the Sun at the same speed
Why do some planets sometimes appear to move towards us and sometimes appear to be moving away?
What is meant by 'declination'?
What is the celestial equator?
What is meant by 'right ascension'?
What is the 'vernal equinox'?
What is the celestial sphere?
Describe a converging lens
Describe a reflecting telescope
Power of a lens
Magnification of a lens
Refraction
What is chromatic aberration?
Advantages of mirrors
Draw a ray diagram
What is the focal length?
How can you estimate focal length when looking at a lens?
How does a telescope with two converging lenses work?
Draw a diagram
Explain how a converging telescope works.
Dispersion
What happens if you shine white light through 2 prisms?
What does a spectrometer contain?
What does a spectrometer measure?
What is a grating?
Why must mirrors be parabolic?
What is 'diffraction'?
What radiation does the atmosphere transmit (allow through)?
What radiation does the atmosphere absorb?
Calculating distance (in parsecs) equation
What is the parallax angle?
How long is a parsec?
Inverse Square Law
What is luminosity?
What does a stars luminosity depend on?
What is observed brightness?
What is a Cepheid variable?
Describe a Cepheid variable graph
Curtis's idea about the Milky Way
Shapley's idea about the Milky Way
Define: Comet
Define: Asteroid
Define: Planetary Nebula
Define: Nebula
Define: Supernova
Define: Pulsar
Define: Quasar
Speed of recession equation
What is speed of recession?
Complete the sentence:
,The more distance the galaxy, the _____________ its speed of recession.
Match these up:
Warm object High Frequency
Red Hot Object Low Frequency
White Hot Object Medium Frequency
Explain what this shows
What is this and what does it show?
What is this and what does it show?
How do atoms emit light?
How do atoms absorb light?
Symbol for positron
What is the 'strong nuclear force'?
What is 'electrostatic repulsion'?
Describe the Hertzsprung-Russell diagram.
(REFER TO IMAGE FOR ANSWERS)
What is the ISM?
In what 4 ways can you describe a gas?
Pressure eqaution
Describe the pressure-volume graph
Absolute Zero
Boyle's Laws
Charles' Law
How do stars form?
(5 steps)
Describe the structure of a star like our Sun
Describe the life of a star.
What is a neutron star?
What is a black hole?
What does SETI mean?
What is an exoplanet?
How can exoplanets be detected?
What is the Drake Equation (with explanation)
