5 Written Questions
5 Matching Questions
- blue shift
- specific heat
- a the spinning of an object on its axis
- b The amount of heat that must be absorbed or lost for 1 gram of a substance to change its temperature by 1°C.
- c The rate at which velocity changes
- d Lowest point of a wave
- e An increase in the measured frequency of light from an approaching source.
5 Multiple Choice Questions
- having the earth as the center
- a galaxy shaped like a round or flattened ball, generally containing only old stars
- the brilliant explosion of a dying supergiant star
- Energy that is stored and held in readiness
- a graph that shows the relationship between the absolute magnitude and temperature of stars, a plot of the absolute magnitude of luminosity of stars versus their surfce temperatures or spectral classes
5 True/False Questions
low mass star → Early form of a star; This stage lies between the collapsing of dust and gas and the beginning of nuclear fusion
ozone → a form of oxygen that has three oxygen atoms in each molecule instead of two. protects us from dangerous ultraviolet radiation from the sun
convection → the transfer of thermal energy by the circulation or movement of a liquid or gas
fusion → Creation of energy by joining the nuclei of two hydrogen atoms to form helium.
black hole → a dense, collapsed core with a very strong gravitational pull that forms when a very massive star becomes a supernova