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Worksheets11.2-4/12.2/13.1 Magnetism
Total questions: 13
Worksheet time: 7mins
Name
Class
Date
1.
emf generated by a running motor, because it consists of a coil turning in a magnetic field; it opposes the voltage powering the motor
a)
back emf
b)
cosmic rays
c)
helical motion
d)
induced emf
2.
an equation giving the magnetic field at a point produced by a current-carrying wire
a)
Faraday’s law
b)
Biot-Savart law
c)
gauss
d)
tesla
3.
comprised of particles that originate mainly from outside the solar system and reach Earth
a)
back emf
b)
helical motion
c)
cosmic rays
d)
induced emf
4.
device for converting mechanical work into electric energy; it induces an emf by rotating a coil in a magnetic field
a)
gauss
b)
tesla
c)
right-hand rule-1
d)
electric generator
5.
induced emf is created in a closed loop due to a change in magnetic flux through the loop
a)
Faraday’s law
b)
Biot-Savart law
c)
gauss
d)
tesla
6.
G, unit of the magnetic field strength; 1G=10−4T
a)
Faraday’s law
b)
gauss
c)
Biot-Savart law
d)
tesla
7.
superposition of circular motion with a straight-line motion that is followed by a charged particle moving in a region of magnetic field at an angle to the field
a)
back emf
b)
cosmic rays
c)
helical motion
d)
induced emf
8.
short-lived voltage generated by a conductor or coil moving in a magnetic field
a)
back emf
b)
cosmic rays
c)
helical motion
d)
induced emf
9.
continuous curves that show the direction of a magnetic field; these lines point in the same direction as a compass points, toward the magnetic south pole of a bar magnet
a)
magnetic field lines
b)
magnetic flux
c)
magnetic force
d)
right-hand rule-1
10.
measurement of the amount of magnetic field lines through a given area
a)
magnetic field lines
b)
magnetic flux
c)
magnetic force
d)
right-hand rule-1
11.
force applied to a charged particle moving through a magnetic field
a)
magnetic field lines
b)
magnetic flux
c)
magnetic force
d)
right-hand rule-1
12.
using your right hand to determine the direction of either the magnetic force, velocity of a charged particle, or magnetic field
a)
gauss
b)
tesla
c)
electric generator
d)
right-hand rule-1
13.
SI unit for magnetic field: 1 T = 1 N/A-m
a)
tesla
b)
Faraday’s law
c)
Biot-Savart law
d)
gauss
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