science study guide
Terms
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- newtons first law of motion
- an object at rest stays at rest an object in motion stay in motion
- inerta
- the tendency of an object to resist a change in moton
- rotation
- the spining motion of a planet on its axis
- equinox
- the two days of the year on which neither hemisphere is tilited torward or away from the sun
- solstice
- the two days of the year on which the sun reaches its greatest distance north and south of the equator
- astronomy
- the study of the moon , star and other objects in space
- weight
- the force of gravity on an object
- lunar eclipse
- the blocking of sunlight to the moon that occurs when earth is directly between the sun and the moon
- solar eclipse
- the blocking of sunlight to earth that occurs when the moon is directly between the sun and earth
- spring tide
- the tide with the greatest diffrence between consecutive low and high tides
- calendar
- a system of organizing time that defines the lenght and division of year
- revolution
- the movement of an object around another object
- neap tide
- the tide with the least difference between consecutive low and high tides
- gravity
- the attractive force between objects its strenght depends on there masses and the distance between them
- law of universal gravitation
- the scientific law that states that every object in the universe attracts every other object
- mass
- the amount of matter in an object
- force
- push and pull on an object
- axis
- an imaginary line that passes through earth center and the north and south poles about which earth rotates