earth science ch 25
Terms
undefined, object
copy deck
- The height of an object in the sky ---above the HORIZON is called...
- altitude
-
September 23 the first day of fall in the Northern Hemisphere
Dayight and nightime are equal in length - Autumn Equinox
-
An Imaginary straight line ---- (through the earth)
between the North and South pole---- - Axis of rotation
-
The effect of the earthÂ’s rotation
that causes the DEFLECTION of moving objects ----
toward or away from the equator - Coriolis effecf
- The turning of an object on itÂ’s axis
- Rotation
- the highest position of the sun as it moves on the arc from east to west
- Solar noon
- Time told by the sun
- Solar time
-
Th first day of spring about
March 21st - Spring Eqinox
- this is when you advance the standard time of day by one hour for more than six months a year
- Daylight savings time
- Imaginary line throughthe Pacific ocean where the date changes
- International dateline
- the apparent shift in an object's position caused by the motion of the observer
- Parallax
- this is how the earth's axis behaves during its revolution
- Parallelism of axis
- sometimes called the zone meridian, this is the meridian from which we measure longitude
- The prime Meridian
- The movement of the earth in its orbit around the sun
- Revolution
- an area where time is based on an average solar time at a particular meridian over a belt of 15 degrees longitude
- A standard time zone
- In the Northern Hemisphere this is the longest day of the year
- Summer soltice
- This is the place where each time zone is centered on a line of longitude which can be divided evenly by 15 degrees
- Time Meridian
- Around December 21st it is the first day of winter
- Winter solstice
- this is the point in the sky that is directly above the observer
- Zenith