Download Week 1 Review January 25

Name:______________________________________
Date:___________________________________________________
Due by: _______________________________E S Week 1(January 25 –February 2, 2017) review
Vocabulary (Define each):
Aphelion
Barycenter
nuclear fusion
Nutation
summer solstice winter solstice
Biodiversity
oblate spheroid
Universe
ellipse
Equinox
Galaxy
perihelion Precession Revolution
Rotation
Matching: Below are listed Kepler’s laws of motions. Match each to the best description or example.
a.
1.
2.
3.
4.
5.
6.
7.
1st law of motion
b. 2nd law of motion
c. 3rd law of motion
A sun is not directly in the center when Earth travels around it
Ba planet travels faster when it is closer to the sun
A Describes the shape a planet travels around the sun.
AStates Earth travels around the sun in an elliptical pathway
B a planet travels slower when it farther from the sun
B line joining the planet to the Sun sweeps out equal areas in equal intervals of time
C period for a planet to orbit the Sun increases rapidly with the radius of its orbit
Matching: Match each of Earth’s motions to its impact.
a.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Nutation
b. precession
c. revolution
d. rotation
D Earth’s shape
A slight increase or decrease in the amount of seasonal effects
D The calendar day
D Night and day
C The calendar year
C Leap year
B Reversal of the season
D Coriolis effect
B The North star to change
D Apparent sunrise and sunset
C the sun to appear to be displaced about 1 degree daily
Draw and label each of the 4 motions of earth.
REvoltion
Rotation
Name:______________________________________
Date:___________________________________________________
Due by: _______________________________E S Week 1(January 25 –February 2, 2017) review
Precession
Nutation
Answer each question below.
1. What direction are the planets moving around the sun?
Counterclockwise
2. What does the Big Bang describe?
The beginning of the universe; how the universe formed
3. Name this motion. It is a wobble caused by the pull of the moon that takes 18 years.
nutation
4. Name this motion. It takes 26 000 years.
precession
5. When does perihelion occur?
Earth is closer to the sun or January 3/4
6. When does aphelion occur? Earth is furthest from the sun or July 4/5
7. What causes Earth to experience seasons? Tilt of the axis
8. What would happen if Earth’s axis lost its tilt? no seasons
9. Think about the rotation of Earth. If the Earth experienced an increase in speed, what would
happen to the length of the day? Day would be shorter
10. Would you rather for Earth’s rotation to increase or decrease. Support your answer with one or
2 well written sentences.
I would rather for Earth’s rotation to increase. More days would provide more times to sleep
between tasks in periods of darkness.
11. Mercury, Venus, Earth and Mars are traveling around the sun. When will each planet increase in
speed as it revolves around the Sun? when it is closer
12. What process fuels the Sun? nuclear fusion
Name:______________________________________
Date:___________________________________________________
Due by: _______________________________E S Week 1(January 25 –February 2, 2017) review
13. How could one use barycenter to determine if a star is accompanied by a planet? One would
look for the wobbling of a star
Mark each statement as C for Corrrect or INC for incorrect. Change the boldface word(s) to make each
INC statement true.
1.
2.
3.
4.
5.
6.
7.
8.
9.
According to the Big Bang the universe began about 13.8 bya years ago.
Earth travels around the sun in an elliptical pathway. C
A galaxy can be described as group of stars, gas, dust held together by gravity. C
The Sun is the star that accompanies our solar system. C
When the universe began matter moved outward. Today, galaxies are still believed to be moved
outward. C
As Earth experiences precession every 26 000 years, the seasons will be reversed.
Perihelion occurs on Jan. 3/4 and aphelion occurs on July 4.
Earth’s seasons are caused by the tilt of Earth’s axis.
Planet A, B, and C are orbiting the Sun. A has a radius of 10 000 miles from the Sun. Planet B has
a radius 20 000 miles from the Sun. Planet C has a radius of 30 000 miles from the Sun. Planet A
will complete a revolution around the Sun in the shortest amount of time and Planet C will take
the longest amount of time. C
What activity has helped you the most this week?
What do you still not understand?