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ASSIGNMENT 1
Textbook Assignment: "Compasses," chapter 2, pages 2-1 through 2-33.
l - l .
Which of the following definitions
b e s t d e s c r i b e s t h e t e r m
"magnetism"?
1.
T h e c h a r a c t e r i s t i c p r o p e r t i e s
2.
passed by magnets
A phenomenon of nature known
o n l y b y i t s e f f e c t s
3.
The magnetic, o r a t t r a c t i v e ,
power of all metals
1-2.
What are the two types of
magnetism?
1.
North and South
2.
Hard and soft
3.
Permanent and induced
4.
Mechanical and corrosive
IN ANSWERING QUESTIONS 1-3 THROUGH 1-5
SELECT THE TYPE OF MAGNETISM FROM COLUMN B
THAT MATCHES THE DEFINITION IN COLUMN A
NOT ALL RESPONSES ARE USED AND RESPONSES
MAY BE USED MORE THAN ONCE.
1-3.
1-4.
1-5.
A. DEFINITION
B. TYPES OF
MAGNETISM
Magnetism caused by
t h e i n f l u e n c e o f
1. Induced
a n e x t e r n a l f o r c e
2. Natural
Magnetism retained
f o r l o n g p e r i o d s ,
3. Residual
u n l e s s a
demagnetizing force
4. Permanent
i s a p p l i e d
Magnetism that remains
a f t e r a m a g n e t i z i n g
force is removed
1-6.
The Earth's magnetism in the
Northern and Southern Hemispheres
are called what types of magnetism?
1.
2.
Positive and negative magnetism
3.
Permanent and induced magnetism
4.
North and south magnetism
Blue and red magnetism
1-7.
The south-seeking end of a bar
magnet has what type of magnetism?
1.
Red magnetism
2.
Blue magnetism
3.
Negative magnetism
4.
Permanent magnetism
1-8.
What Earth component is the
l i m i t i n g f a c t o r o f a m a g n e t i c
compass?
1.
Magnetic poles
2.
3.
Magnetic equator
V e r t i c a l
4.
Horizontal
1-9.
Which of the following facts is NOT
c o n s i s t e n t w i t h v a r i a t i o n ?
1.
E a r t h ' s m a g n e t i c p r o p e r t i e s a r e
2.
n o t u n i f o r m l y d i s t r i b u t e d
E a r t h ' s m a g n e t i c p r o p e r t i e s a r e
n o t a t t h e s a m e l o c a t i o n a s t h e
3.
geographic poles
T h e c l o s e r y o u r s h i p i s t o t h e
equator,
w i l l b e
t h e l e s s t h e v a r i a t i o n
4.
M a g n e t i c l i n e s o f f o r c e a r e
called magnetic meridians
1-10.
The difference between the
geographic North Pole and the
magnetic North pole is defined by
which of the following terms?
1.
2.
Permanent magnetism
3.
Induced magnetism
V a r i a t i o n
4.
Deviation
1-11.
When a variation for an area is
f i g u r e d , what factor determines
which compass rose should be used?
1.
The one that has the smallest
v a r i a t i o n
2.
The one that has the smallest
c o r r e c t i o n
3.
T h e o n e t h a t h a s t h e l a t e s t
y e a r i n d i c a t e d
4.
T h e o n e t h a t i s c l o s e s t t o y o u r
p o s i t i o n
1
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