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Magnetsim
Magnetsim
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magnetism magnets electromagnetic induction electromagnetism
Flashcards
35 cards
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Practice quiz
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Questions
35
Answers
1
Does this model rely heavily on electromagnetic induction?
Yes
No
2
30 cm wire carries a current of 4.0 A. In a magnetic field of 0.3 T. What is the force on wire
F = BIL sin θ
F = qVB sin θ
F = qVB
B = 2E-7 (I/r)
3
two stationary protons would experience
Fe & Fg
Fb & Fg
Fg & Fb
Fe & Fb
4
Wire w/ I = 50A. What is the size of the magnetic field at point P which is 2.5 mm away?
F = BIL
B = 2E-7 (I/r)
F = qVB sin θ
F = BIL sin θ
5
what is the cause of all magnetism?
mass
moving charge
energy
charge
6
Rich & used Faraday's ideas and calculus to derive a four equations describing much of physics
Sir Isaac Newton
Albert Einstein
James Clark Maxwell
Benjamin Franklin
7
what is the charge on the particle
cant say
zero
positive
negative
8
Was poor and 1st to suggest that invisible fields exist connecting electricity and magnetism
Benjamin Franklin
James Clark Maxwell
Albert Einstein
Michael Faraday.
9
what is the configuration of the magnet system below
either NS-SN or SN-NS
SN-SN
NS-NS
NS-SN
10
the needle of a compos points in the _________ direction to a _________ magnetic pole
south - south
south north
north south
north - north
11
the magnetic field is a
vector
scalar
12
cosmic rays are
charged particle
particles
light
13
invented "the disk" telescope, calculus, had 4 laws, 1st to say colors make up white light
Newton
Albert Einstein
Benjamin Franklin
Sir Isiah Thomas
14
Does this model rely heavily on electromagnetic induction? Assume constant applied voltage.
Yes
No
15
what is the symbol for a magnetic field
B
q
v
F
16
what is this?
electromagnetic
galvometer
electric break
transformer
17
what kind of magnetic pole is located somewhere in Canada?
South pole
both N &S poles
North pole
depends on which hemisphere you live in
18
a magnetic field would cause a force on a
charge
mass
moving charge parallel to
moving charge perpendicular to B
19
what kind of magnetic pole is located at the geographic south pole?
North pole
both N &S poles
South pole
depends on which hemisphere you live in
20
what causes iron to become magnetised
domain names
heat
domains
aligning of domains
21
The earths magnetic field protects us from
IR light
UV light
cosmic rays
gamma rays
22
On a magnet, like poles _______ and unlike poles _______
repel/attract
convict/aquit
converge/diverge
attract/repel
23
Early American scientist and politician that did ground working study on electricity
James Clark Maxwell
Albert Einstein
Benjamin Franklin
Sir Isaac Newton
24
what causes the earths magnetic field?
reflection of sun's magnetic field
large deposits of lodestone
reflection of the moons magnetic field
convection currents of molten iron
25
what is the direction of the force on the charged particle
out of the plane
zero has no direction
up the page
into the plane
26
If you put a small compass in a magnetic field, the compass will
make circles around the lines
align parallel with the magnetic lines
depends on your definition
align perpendicular to the magnetic lines
27
Does this model rely heavily on electromagnetic induction?
No
Yes
28
Does this model rely heavily on electromagnetic induction?
Yes
No
29
An e
-
with a speed v = 2 x 10
7
m/s through a magnetic field of B = 0.080 T, what is the F
b
F = qVB sin θ
F = BIL sin θ
B = 2E-7 (I/r)
F = BIL
30
what is the direction of the force on the charged particle
up the page
zero has no direction
into the plane
out of the plane
31
Died in 1955 and work on space time fabric.
James Clark Maxwell
Sir Isaac Newton
Albert Einstein
Benjamin Franklin
32
if you want to remove the magnetism from a piece of IRON
heat it
hit it hard
heat or hitting it
cut it in pieces
33
A circular wire (coil) causes what kind of magnetic force field lines?
straight inside coil & parallel to coil
circular inside coil
circular outside coil
straight inside coil & perpendicular to coil
34
what happens when you break a magnet?
you get two of the same monopoles
remove the magnetism
you get two different mono poles
two new magnets each w/ 2 different poles
35
A straight wire causes what kind of magnetic force field lines?
circular & inside wire
straight and parallel
circular & outside wire
straight and perpindicular
