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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
Venus
B
Jupiter
C
Saturn
D
Neptune
2) An imaginary circle around the earth halfway between the magnetic poles is the ________.
A
magnetic equator
B
isogonic line
C
magnetocline
D
prime meridian
3) What is the stream of charged particles that emanates from the sun called?
A
magnetopause
B
solar wind
C
cosmic radiation
D
Van Allen stream
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
Thales of Miletus
B
William Gilbert
C
Otto von Guericke
D
Benjamin Franklin
6) The extent of a planet's magnetic field in space is known as a _________.
A
magnetopause
B
agonic line
C
magnetocline
D
magnetosphere
7) The donut shaped belts of high-speed particles trapped in Earth’s magnetic field are the ______.
A
cosmic radiation
B
Van Allen radiation belts
C
magnetopause
D
solar wind
8) The southern lights are known as aurora _________.
A
australis
B
borealis
C
westeros
D
orientalis
9) What is the aurora phenomenon caused by?
A
high speed particles crashing into the upper atmosphere
B
solar wind bringing fire into the upper atmosphere
C
firefly mating season
D
electric charges becoming visible in the upper atmosphere
10) What causes the Earth’s magnetic field?
A
particles around the earth are magnetic
B
core of copper
C
molten core moving
D
solar wind makes the earth disproportionately charged
*select an answer for all questions
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