Transcript Final Exam Jeopardy

Magnetism
Rules:
-points will be deducted for every
wrong answer
-No abbreviating
-No arguing about points or 50
points will be deducted
-Writing must be legible
Electrostatics
Current Electricity
Magnetism
Sound &
Waves
Light & Optics
Thermodynamics
& Nuclear
Electrostatics
Current
Electricity
Magnetism
Sound &
Waves
Light &
Optics
Thermodynamics
& Nuclear
100
100
100
100
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200
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400
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500
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500
These materials have
electrons that are tightly
bound to the nucleus
What are
insulators?
This law states that like
charges repel and opposite
charges attract.
What is the Law of
Charges?
The space around
every electrically
charged body is filled
with
THIS.
What is an electric
field?
This is what happens
to the force when the
distance between two
charges is tripled.
The force is
multiplied by 1/9
This is what happens to
the force when the
distance between 2
charges is doubled and
1 of the charges also
doubles.
The force is cut in
half.
This is the total resistance
when a 12-ohm bulb and a
15-ohm bulb are connected
in series with one another.
What is 25-ohms?
These add up in a
series circuit
What are voltage
AND resistance?
If you triple the voltage in a
circuit with constant
resistance, how will this
change the current?
The current will
increase by a
factor of 3.
Four identical resistors
are connected in series
to a 12-volt battery.
What is the voltage
across any one of the
resistors?
What is 3 Volts?
This is the total
resistance of a 10-ohm,
a 15-ohm, and a 30-ohm
bulb connected in
parallel.
What is 5 Ohms?
This is the region
in which a
magnetic force
can be detected.
The magnetic field
Magnetic field lines
around bar magnets are
drawn with arrows
pointing in this
direction.
From North to
South
This is the direction of
the magnetic field
around a current
carrying wire traveling
into the page.
What is
clockwise?
This converts
mechanical energy
into electrical
What is a
generator?
These are the 3 factors that
contribute to the strength
of an electromagnet.
What are:
1. Number of coils
2. Amount of current
3. Iron core
A sound wave has these
two classifications – it
needs a medium and the
medium vibrates parallel to
the direction the wave
travels
Mechanical and
Longitudinal
This is the numerical
range of frequencies
that humans can hear.
What is 20 to
20,000 Hz?
Daily
Double!
A wave moving at 50
m/s with a frequency of
0.125 s has this
wavelength.
What is 400 m?
These are the 4
phenomena common
to all waves
Refraction,
reflection,
diffraction,
interference
o
18
At
C an echo is
heard across a
canyon 5 seconds
later. This is the
width of the canyon.
What is 854.5 m?
This is the speed of
light in a vaccuum.
What is 3 x
8
10
m/s?
This color has the
lowest frequency.
What is red?
This type of lens
ALWAYS produces a
virtual image.
Concave lens
The human eye uses this
type of lens to focus light
onto the retina.
Convex lens
The image would be
this far away if an
object was placed 10
cm away from a
concave mirror with a
focal length of 5 cm
What is 10 cm?
This is the amount of time
A 3.0 cm wire carries a 4.0 A current. The wire is placed at right
half
a radioactive
anglesfor
to a magnetic
field of
of induction
of .12 T. How much force acts
on the wire?
isotope to undergo
radioactive decay.
A 3.0 cm wire carries a 4.0
A current. The wire is
placed at right angles to a
life
magneticHalf
field of
induction
of .12 T. How much force
acts on the wire?
These are the 3 ways in
which heat can be
transferred.
Conduction
Convection
Radiation
F=IlBsinθ
These are the 3 types of
radiation listed in order
from most penetrating
power to least
Gamma radiation
Alpha particle
Beta particle
238U
changes into
234Th
by
emitting
which
90
type of radiation?
92
Alpha Particle
Daily
Double!
A 100 g sample of substance ‘R’
has a half-life of 15 days. How
much of the substance remains
after 60 days?
F=ma
6.25
g
F=
Final
Jeopardy
Light
A diver shines a flashlight
upward from beneath the
water at a 39 degree angle
to the vertical. At what
angle does the light leave
the water?
o
56.8