Earth's Rotation
Earth's Revolution
Earth's Seasons
Earth's Tides
Models
100
What causes Earth's rotation?
The gravitational push and pull from the sun and the moon.
100
How long does it take the Earth to revolve around the Sun?
365 days
100
What causes Earth's seasons?
Earth's axis is tilted and this tilt creates our seasons.
100
What causes tides to change?
The gravitational pull from the moon along with the rotation of the Earth.
100
What are the names of the two models of the earth?
Geocentric & Heliocentric models
200
What is the wobble in Earth's rotational axis called?
Precession
200
Which has a greater effect on Earth's tides? a. the sun b. the moon c. the ocean d. the earth's rotation
b. the moon
200
What is heliocentric model?
Earth and the other planets orbit the sun.
300
How long does it take for Earth's rotational axis to go through one cycle of precession?
26,000 years
300
What is geocentric model?
The Sun, planets, and stars orbited a stationary Earth.
400
What is retrograde motion?
When a planet will move in the opposite direction across the sky.
500
Give a brief description of Kepler's first law.
It demonstrates that each planet orbits the sun in an ellipse.
M
e
n
u