Earths motions

Question 1

celestial Sphere

Answer 1

The imaginery dome of the sku where celestial objects are.

Question 2

zenith

Answer 2

The highest point in the sphere directly above the observer (90 degrees)

Question 3

Horizon

Answer 3

The line where the sky meets earth (edge of sphere)

Question 4

Arc Path

Answer 4

Apparent path the sun moves along with a celestial sphere

Question 5

real motion

Answer 5

the actual motion of a celestial object

Question 6

apparent motion

Answer 6

How a celstial oject seems to move

Question 7

star paths

Answer 7

stars appear to move across the sky from eat to west. They apper to move scross the sky ine ither arcs of full cirtcular patterns. They move at 15 degrees per hour

Question 8

circumpolar stars

Answer 8

stars that travel around polaris in 360 degrees

Question 9

Constellation

Answer 9

Used to tell stories

Question 10

Planets

Answer 10

Wanderer. Planets that appear to move backwards since earth past it. This is called retrograde motion

Question 11

What characteristic of the Sun’s daily path stays constant

Answer 11

Rate of suns movement along its apparent path

Question 12

Altitude

Answer 12

height of an object above the sea level measured in degrees

Question 13

Geocentric Model

Answer 13

earth centerd solar system

Question 14

Heliocentric model

Answer 14

sun centered solar system

Question 15

rotation

Answer 15

Earth rotates from west to east on its tilted axis of 23.5 degrees. it rotates counter clockwise

Question 16

Rotation causes

Answer 16

rotation causes day and night changes. The lower the latitude the greater the rotation speed you are moving

Question 17

rotation words

Answer 17

hourly movement of earth, sunset/sunrise, corilius affect/foucault pendulum, and star paths

Question 18

revolution

Answer 18

earth orbiting the sun 1 degree per day. in 365.26 days at a rate of 67000 miles per hour

Question 19

ellipses

Answer 19

a circle or a flattened our circle. 2 centers called foci (one foci is sun).

Question 20

major axis

Answer 20

line drawn through the focis

Question 21

less eccentric the ellipse

Answer 21

closer to 0

Question 22

more eccentric

Answer 22

The closer to one (Never exacly 1)

Question 23

1st kepler law

Answer 23

planets revolve in elliptical orbits with the sun at one focus

Question 24

2nd kepler law

Answer 24

planets sweep out equal areas in equal periods of time. when planet is closer to the sun it speeds up when father it slows down.

Question 25

3rd keplers law

Answer 25

The larger the planets orbit the longer it takes to complete it. Outer planets take longer to revolve around the sun.

Question 26

gravity

Answer 26

depends on mass and distance. Larger mass and closer the greater force of gravirty

Question 27

inertia

Answer 27

object in motion continues to go in a straight line at a constant speed unless acted on hy gravity