A compass is a device used for ___________.
Navigation
Operating system
Tracking
The compass was first used in __________ by the Han Dynasty between 20 BC and 20 AD.
India
China
North America
A magnetic compass uses the Earth’s magnetic field.
True
False
Compasses have a diagram on them known as a ____________.
Compass pointer
Compass rose
Compass vex
On a compass, “WNW” stands for the secondary intercardinal direction ___________.
Northwest
West-northeast
West-northwest
On a compass, ________ stands for the cardinal direction east.
E
T
W
There are how many secondary intercardinal directions?
Seven
Eight
Nine
A ____________ uses the Earth’s rotation.
Microcompass
Giocompass
Gyrocompass
The early Chinese compasses were made of ____________ that would be bolted like a lace.
Magnetite minerals
Mercury
Limestone
A compass uses a ____________ that can turn freely so that it always points to the north pole of the Earth's magnetic field.
Adjusting hand
Magnetic needle
The phenomenon of magnetism was known to which ancient people?
Greeks
Chinese
Portuguese
Magnets align themselves along the ____________ axis because the Earth itself is a huge magnet.
East-west
North-south
South-east
Before the magnetic compass, sailors navigated by the position of the ___________.
Sun
Water
Stars
On a compass, _________ stands for the intercardinal direction southeast.
SE
SW
WE
A ____________ is a device that measures magnetism.
Magnetic field
Magnetometer
Magnetifier
The needle of the compass starts to point up or down when getting closer to the poles, because of the so-called ____________.
Magnetic inclination
Magnetic field
Magnet induction
__________ refers to the response of the compass to local magnetic fields caused by the presence of iron and electric currents.
Direction
Deviation
Dignometer
A compass is any magnetically sensitive device capable of indicating the direction of the magnetic north of a planet's magnetosphere.
True
False
The first needle of an iron needle compass from China was in a shape of a __________.
Eyes
Toe
Tadpole
Magnetic compass point to a geographic pole.
True
False
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