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Physics Chapter 24

28 Questions  I  By Qtkhmerqueen143
Physics Chapter 24
Physics Chapter 24

  
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1.  The source of all magnetism is 
A.
B.
C.
D.
E.
2.  Magnetic compasses apparently were first used by
A.
B.
C.
D.
E.
3.  Moving electric charges will interact with
A.
B.
C.
D.
4.  If a steady magnetic field exerts a force on a moving charge, that force is directed
A.
B.
C.
5.  If a steady magnetic field exerts a force on a moving charge, that force is directed
A.
B.
C.
6.  An iron rod becomes magnetic when
A.
B.
C.
D.
E.
7.  Like kinds of magnetic poles repel while unlike kinds of magnetic poles
A.
B.
C.
8.  Several paper clips dangle from the north pole of a magnet. the induced pole in the bottom of the lowermost paper clip is a 
A.
B.
C.
9.  An iron nail is more strongly attracted to the 
A.
B.
C.
10.  Surrounding every moving electron is 
A.
B.
C.
D.
11.  Magnetism is due to the motion of electrons as they 
A.
B.
C.
D.
12.  Magnetic domains normally occur in
A.
B.
C.
D.
E.
13.  Magnetic field lines about a current-carrying wire
A.
B.
C.
D.
14.  The force on an electron moving in a magnetic field will be the largest when its direction is
A.
B.
C.
D.
E.
15.  The intensity of cosmic rays bombarding the Earth's surface is largest at the 
A.
B.
C.
16.  If we think of the Earth as a magnet, its north (SEEKING) pole is nearest
A.
B.
C.
17.  Which pole of a compass needle points to a south pole of a magnet?
A.
B.
C.
18.  Pigeons navigate primarily by
A.
B.
C.
D.
E.
19.  Magnet A has twice the magnetic field strength of Magnet B and at a certain distance pulls on magnet B with a force of 100 N. the amount of force that magnet A exerts on magnet B is
A.
B.
C.
20.  Compared to the huge force that attracts an iron tack to a strong magnet, the force that the tack exerts on the magnet is
A.
B.
C.
21.  An electron is hot from the right, toward a spot just between the ends of the magnet. the electron
A.
B.
C.
D.
E.
22.  If a compass is moved form northern hemisphere to the southern hemisphere, its magnetic needle will change direction
A.
B.
C.
D.
E.
23.  A possible cause for the existence of the Earth's magnetic field is
A.
B.
C.
D.
E.
24.  Outside a magnet, magnetic field lines are conventionally drawn from
A.
B.
C.
25.  Which force field can increase a moving electron's speed?
A.
B.
C.
D.
26.  Which force field can accelerate an electron, but never change its speed?
A.
B.
C.
D.
27.  When a bar magnet is broken in two as shown, each piece is 
A.
B.
C.
D.
28.  Superconducting electromagnets
A.
B.
C.
D.
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