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Electric Fields
Electric Fields
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StudBud Administration
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Grade 11 Electric Fields Review
Flashcards
25 cards
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Practice quiz
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Questions
25
Answers
1
Magnetic field strength is measured with which unit?
Tesla
Coloumb
Ampere
Newton
2
If a suspended charge particle has a weight of 39 Newtons, what is the electric force?
382 N (up)
382 N (down)
39 N (up)
39 N (down)
3
In 1909 Dr. Millikan started doing experiments to determine what?
The best recipe for gingerbread cookies
The mass of a proton
The size of the elementary charge
The speed of an electron
4
The following electric field diagram represents which kind of charge?
neutral
positive
negative
parallel plates
5
Which particles have charge?
Quarks and Bosons
Electrons and Neutrons
Neutrons and Quarks
Electrons and Protons
6
Millikan found the charge on which of these substances in his famous experiment?
oil droplets
milk droplets
water droplets
perfume droplets
7
This Field diagram represents...
two negative charges
a positive and a negative charge
two positive charges
8
In which direction is the magnetic field around this wire acting?
into the page
no magnetic field
out of the page
9
The lines on a field diagram represent...
the direction of force on a negative test charge
the direction of force on a neutral test charge
the direction of force on a positive test charge
10
Which particle will experience a larger acceleration in the same electric field?
Electron
Proton
11
'L' in this picture of the third right hand rule represents the direction of which quantity?
Magnetic Field strength
Current
Magnetic Force
Flux Density
12
A negative charge in a positive field will experience which type of force...
repulsive
attractive
13
The relationship between total charge and number of protons or electrons is...
q=NE
q/F=N
F=qE
q=Ne
14
A test charge has a total charge of -3.2x10
-19
C... how many excess electrons does it have?
6
4
1
2
15
Magnetic field strength is represented by which letter in an equation?
B
F
L
I
16
The units of
Electric field strength
are....
Newtons
Volts
Coulombs
Newtons per Coulomb
17
Which theory explains why magnets are magnetized
Magnet Theory
Domain Theory
Relativity of Relativity
Heisenberg Theory
18
The
force
experienced by a test charge in a field can be calculated by...
(electric field strength) x (charge)
(electric field strength) x (9.81)
(electric field strength) / (charge)
(electric field strength) x (distance)
19
Elementary charge is defined as...
The amount of charge on a single neutron
The amount of charge on a single Boson
The amount of charge on a single atom
The amount of charge on a single proton or electron
20
Which forces are acting on a charged particle suspended between 2 charge plates?
Force of Gravity(down), Electric force (up)
Magnetic Force(up), gravitational force (down)
Force of gravity(down), Normal Force (up)
Force of Gravity(up), electric force (down)
21
Which one is easier....?
Changing the amount of electrons
Changing the amount of protons
22
What is the polarity of the nail in this solenoid?
positive
South
negative
North
23
How would you find the
acceleration
of a particle experiencing a force in an electric field?
a=q/Vm
a=q/Eg
a=Eq/m
a=q/Em
24
Something that has neutral charge is...
has more protons than electrons
is only made up of neutrons
made of of equal amounts of electrons and protons
has more electrons than protons
25
Electric Fields are different than Gravitational fields because...
Electric Fields are attractive and Repulsive
Electric fields are only repulsive
Electric fields are a lot weaker than Gravitational
Electric Fields only attract mass
