Exam 3 conceptual problems
Name_
1) In the figure, a bar magnet moves away from the solenoid. The induced current through the
resistor R is:
A) from b to a
B) from a to b
C) zero
1)
2) Draw a circuit consisting of a battery connected to two resistors, R1
WAVE OPTICS
Chapter 17
1
Electromagnetic waves
transport
Energy
and
Information
2
A theory of light?
Light travels in a straight line
Ray optics
Light behaves as a wave
Light behaves as parti cle and wave!?
Quantum optics
3
Light is:
An electromagnetic wa
Ch-18-&-19
Objects are one of two things
1) Self Luminous or 2) Reflective objects
2
Light moves in straight lines:
Scattered light:
We can only see light when it scatters
towards our eyes, or is directed toward our
eyes. If light does not enter your eye,
Ch 24
Magnetism
Demo: magnets on swivels to show attraction and
repulsion
Demo: Both ends attract steel objects
Like magnetic poles repel each other and Unlike
magnetic poles attract each other.
North pole is named for its tendency to seek North
and south
Chapter 25
Induced EMF s:
Faradays law
Lenz s law
Electromagnetic Spectrum
Polarization
1
Motional emf
2
Demo: Coil and magnets
3
So what is happening?
Remember that Moving charge is affected by a magnetic field.
The question is does the charge have to mo
Exam
Name_
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
1) Which force binds atoms together to form molecules?
A) centripetal
B) nuclear
C) gravitational
D) electrical
E) none of these
2) In an ele
Exam 3 Calculation problems
Name_
1) The current through a 10-ohm resistor connected to a 120-V power supply is
A) 12 A.
B) 120 A.
C) 10 A.
D) 1 A.
E) none of these
1)
2) A 10-ohm resistor has a 5-A current in it. What is the voltage across the resistor?
Electric forces and Electric Fields
College Physics Chapt er 20 sections 1 6
OpenStax book Chapter 18 sections All
Demo: Rods and fur and silk and
pith balls and paper.
What is the nature of this
force?
Is it familiar or a new force?
Long range or a conta
Electric Potential and Capacitors
Knight book Chapter 21
Sections 1, 2, 7, 8
OpenStax online book Chapter 19
Sections
Introduction to Electric Potential and Electric Energy
Electric Potential Energy: Potential Difference
Capacitors and Dielectrics
1
In Ph
Exam 3 conceptual problems
Name_
1) In the figure, a bar magnet moves away from the solenoid. The induced current through the resistor
R is:
A) from b to a
B) from a to b
C) zero
1)
2) Draw a circuit consisting of a battery connected to two resistors, R1
Exam 3 Calculation problems
Name_
1) The current through a 10-ohm resistor connected to a 120-V power supply is
A) 12 A.
B) 120 A.
C) 10 A.
D) 1 A.
E) none of these
1)
2) A 10-ohm resistor has a 5-A current in it. What is the voltage across the resistor?
P131 Equations
Ei = E f
Ki + U i = K f + U f
W = Fd
W = DE
v
v
p = mv
r
v v
Dp = F Dt = J
P=
K = 1 mv 2
2
W
P=
Dt
v v
p f = pi
v
v Dp
F=
Dt
F^
A
A1v1 = A2 v2
U g = mgy
Fi F f
=
Ai Af
P + 1 r (v1)2 + rgy1 = P2 + 1 r (v2)2 + rgy
1 2
2
2
PV1 P2V2
1 =
T1
T2
P