Tides & seasons
Weak tides formed during first and last quarter phase
What is neap tides?
A large grouping of stars, solar systems, gas, and dust bound by gravity
What is galaxy?
Distance light travels in one year
What is light year?
Energy that is in motion or in action
What is kinetic energy?
The ability to do work
What is energy?
Energy that is stored or possible action
what is potential energy?
Measurement of speed and direction of an object
What is velocity?
Force that opposes the motion of one surface over another
What is friction?
When a force moves an object
What is work?
The end of life explosion of a giant star
What is supernova?
Energy can neither be created nor destroyed
What is law of conservation of energy?
A scalar quantity that refers to how much 'ground' an object has covered during its motion
What is distance?
Group in which a star is classified according to its spectrum
What is spectral class?
Change of an object's speed or direction
What is acceleration?
A vector quantity that refers to the shortest distance from initial to final position
What is displacement?