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Astronomy and Applied Optics

Test Your Knowledge

To calculate your current grade in this subject area, give yourself a confidence score for how well you think you would answer each of the questions below in an exam situation.

These are not the type of questions you would typically find in a physics exam. They are designed to remind you which topics you need to revise.

For scoring, 4= Very confident, 0= No Idea. If a question is not on your syllabus, click N/A and you will not be graded on it.

Can you...

...define focal point?

4 3 2 1 0 N/A

...list the three rays traditionally drawn on a ray diagram?

4 3 2 1 0 N/A

...describe the difference between a virtual image and a real image?

4 3 2 1 0 N/A

...confidently draw a ray diagram for both converging and diverging lenses?

4 3 2 1 0 N/A

...confidently perform equations with the lens equation?

4 3 2 1 0 N/A

...describe how and why a convex lens may be used as a magnifier?

4 3 2 1 0 N/A

...define linear magnification?

4 3 2 1 0 N/A

...define angular magnification?

4 3 2 1 0 N/A

...draw a ray diagram for a refracting telescope?

4 3 2 1 0 N/A

...define aperture?

4 3 2 1 0 N/A

...State what the Rayleigh criterion is?

4 3 2 1 0 N/A

...perform calculations involving the Rayleigh criteria?

4 3 2 1 0 N/A

...describe how reflecting prisms are used in optical instruments?

4 3 2 1 0 N/A

...describe how a reflecting telescope works?

4 3 2 1 0 N/A

...describe what a charge coupled device is?

4 3 2 1 0 N/A

...define pixel?

4 3 2 1 0 N/A

...define galaxy, star, planet, moon etc ?

4 3 2 1 0 N/A

...describe different types of galaxy?

4 3 2 1 0 N/A

...explain how galaxy mass affects speed of rotation?

4 3 2 1 0 N/A

...define light year?

4 3 2 1 0 N/A

...define AU (astronomical unit)?

4 3 2 1 0 N/A

...define parsec?

4 3 2 1 0 N/A

...define nebula?

4 3 2 1 0 N/A

...define protostar?

4 3 2 1 0 N/A

...define red giant?

4 3 2 1 0 N/A

...define white dwarf?

4 3 2 1 0 N/A

...define neutron star?

4 3 2 1 0 N/A

...define pulsar?

4 3 2 1 0 N/A

...define luminosity?

4 3 2 1 0 N/A

...define black hole?

4 3 2 1 0 N/A

...define apparent magnitude?

4 3 2 1 0 N/A

...define absolute magnitude?

4 3 2 1 0 N/A

...explain what black-body radiation is?

4 3 2 1 0 N/A

...explain how Wien's law is useful in astronomy?

4 3 2 1 0 N/A

...explain how Stefan's law is useful in astronomy?

4 3 2 1 0 N/A

...confidently perform calculations involving the doppler effect?

4 3 2 1 0 N/A

...describe what radar astronomy is?

4 3 2 1 0 N/A

...explain how stars are classified?

4 3 2 1 0 N/A

...list the characteristics of the main classes?

4 3 2 1 0 N/A

...explain what a Hertzsprung Russell diagram is?

4 3 2 1 0 N/A

...explain how different types of star appear on the H-R diagram?

4 3 2 1 0 N/A

...explain what parallax is and how it can be used to estimate the distance of stars?

4 3 2 1 0 N/A

...explain what Hubble's Law is and how it can be used to estimate the distances of stars?

4 3 2 1 0 N/A

...describe what a cepheid variable is?

4 3 2 1 0 N/A

...explain how the distance of a cepheid variable can be calculated?

4 3 2 1 0 N/A

...describe the birth of a star?

4 3 2 1 0 N/A

...describe the fusion process that occurs in the sun?

4 3 2 1 0 N/A

...explain the difference between the proton-proton chain and the CNO cycle?

4 3 2 1 0 N/A

...describe how the death of the sun will occur?

4 3 2 1 0 N/A

...describe how more massive stars will differ from the sun in this process?

4 3 2 1 0 N/A

...describe how less massive stars will differ from the sun in this process?

4 3 2 1 0 N/A

...explain the conditions under which a supernova occurs?

4 3 2 1 0 N/A

...explain the conditions under which a neutron star forms?

4 3 2 1 0 N/A

...explain the conditions under which a black hole forms?

4 3 2 1 0 N/A

...explain how the Schwarzchild radius is calculated?

4 3 2 1 0 N/A

...draw the death of a star on the H-R diagram?

4 3 2 1 0 N/A

...define supernova?

4 3 2 1 0 N/A

...define binary stars

4 3 2 1 0 N/A

...describe how different types of radiation need different detectors?

4 3 2 1 0 N/A

...explain why different radiation detectors are placed at different altitudes?

4 3 2 1 0 N/A

...describe and explain the design of a radio telescope?

4 3 2 1 0 N/A

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