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Samuels PS Earth’s Magnetism
Test Description: Physical Science Earth’s Magnetism
Instructions: Answer all questions to get your test result.
1) Which of the following planets does not have a magnetic field?
A
Neptune
B
Saturn
C
Venus
D
Jupiter
2) An imaginary circle around the earth halfway between the magnetic poles is the ________.
A
magnetocline
B
magnetic equator
C
prime meridian
D
isogonic line
3) What is the stream of charged particles that emanates from the sun called?
A
Van Allen stream
B
magnetopause
C
solar wind
D
cosmic radiation
4) The amount by which a compass needle deviates from true north is the angle of _______.
A
deflection
B
incination
C
northern dip
D
declination
5) Which scientist was the first to propose that earth has a magnetic field?
A
Benjamin Franklin
B
William Gilbert
C
Thales of Miletus
D
Otto von Guericke
6) The extent of a planet's magnetic field in space is known as a _________.
A
magnetocline
B
magnetosphere
C
agonic line
D
magnetopause
7) The donut shaped belts of high-speed particles trapped in Earth’s magnetic field are the ______.
A
solar wind
B
cosmic radiation
C
magnetopause
D
Van Allen radiation belts
8) The southern lights are known as aurora _________.
A
westeros
B
orientalis
C
australis
D
borealis
9) What is the aurora phenomenon caused by?
A
solar wind bringing fire into the upper atmosphere
B
electric charges becoming visible in the upper atmosphere
C
firefly mating season
D
high speed particles crashing into the upper atmosphere
10) What causes the Earth’s magnetic field?
A
core of copper
B
solar wind makes the earth disproportionately charged
C
molten core moving
D
particles around the earth are magnetic
*select an answer for all questions
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