Download File - SPH4U0 - Grade 12 University Physics

Jeopardy
Opening
Game Board
Definitions
Magnetic
Field of
Dreams
Don’t Break
the Law!
May the
Force be
with You
Don’t
Formulae
to Me
$100
$100
$100
$100
$100
$200
$200
$200
$200
$200
$300
$300
$300
$300
$300
$400
$400
$400
$400
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$500
$500
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$500
Definitions: $100
SI Defines this as the
current in each of two
long, straight parallel
conductors 1m apart in a
vacuum, when the
magnetic force between
them is 2x10-7 N/m length.
What is an Ampere?
Definitions: $200
The units for this
is Newton times metres
squared divided by
kilogram squared
(N*m2/kg2).
What is the Universal
Gravitation Constant?
Definitions: $300
This is the minimum speed
needed to project a mass
m from the surface of
mass M to just escape the
gravitational force of M.
What is Escape
Speed/Velocity?
Definitions: $400
A charged particle in a
uniform electric field is
said to move with this type
of acceleration.
What is
Uniform/Constant
Acceleration?
Definitions: $500
If an object experiences a
particular kind of force
over a continuous range of
positions, then this exists
in that region.
What is a Force Field?
Magnetic Field of Dreams: $100
This symbol is used to
indicate that the magnetic
field is going into the page.
What is the circle with
an x in it?
Magnetic Field of Dreams: $200
A horizontal wire carries a
current to the right, through a
magnetic field. The force acting
on the wire is out of the page.
What is the direction of the
magnetic field?
What is vertically up?
Magnetic Field of Dreams: $300
The magnitude of the
magnetic field a distance r
from a long, straight I is B. The
same magnetic field will have
magnitude 2B if the current is
tripled at this distance.
What is 1.5r ?
Magnetic Field of Dreams: $400
A straight wire 15 cm long,
with a current of 2 A, lying at
right angles to a uniform
magnetic field, experiences a
magnetic force 0.40 N. What
is the magnitude of the
magnetic field?
What is B = 1.3 T?
Magnetic Field of Dreams: $500
A charged particle moves in a
straight line through a region
of space. Could there be a
nonzero magnetic field in this
region? If so, give examples.
What is yes, parallel in
the same/opposite
direction or with a
crossed electric field?
Don’t Break the Law: $100
When a current is induced
in a coil by a changing
magnetic field, the electric
current is in such a
direction that its own
magnetic field opposes the
change that produced it.
What is Lenz’s Law?
Don’t Break the Law: $200
This law states that the
force between two point
charges is inversely
proportional to the square
of the distance between
the charges and directly
proportional to the product
of the charges.
What is Coulomb’s Law?
Don’t Break the Law: $300
This law states the force
between any two objects is
directly proportional to the
product of their masses and
inversely proportional to the
square of the distance
between their centres.
What is Newton’s Law of
Universal Gravitation?
Don’t Break the Law: $400
This law states that if you
are not punctual to your
physics class you will have
lunch time detention.
What is the Law of Mr.
Chang/Law of the
Land?
Don’t Break the Law: $500
This law states that the total
charge (the difference
between the amounts of
positive and negative charge)
within an isolated system is
conserved.
What is the Law of
Conservation of
Charge?
May the Force be with You: $100
What is the magnitude and
direction of the magnetic
force on an electron
travelling at 5.0 x 104 m/s in
the same direction as a
uniform magnetic field with a
strength of 5.0 T?
What is zero?
May the Force be with You: $200
Determine the magnitude and
direction of the force on an
electron traveling 8.75 x 105 m/s
horizontally to the east in a
vertically upward magnetic field
strength 0.75 T.
What is F = 1.05 x 10-13 N
[NORTH] ?
May the Force be with You: $300
If a negative charge is moving in
the +x direction through a
magnetic field into the page (-z)
direction, What is the direction of
the magnetic force?
What is downwards
or –y?
May the Force be with You: $400
What is the distance between
two protons experiencing a
mutually repelling force of
magnitude 4.0 x 10-11 N?
What is 2.4 x 10-9 m?
May the Force be with You: $500
How much current is flowing
in a wire 4.80 m long if the
max force on it is 0.750 N
when placed in a uniform
0.0800 T field?
What is I = 1.95 A ?
Don’t Formulae to Me: $100
This formula allows you to
determine the Magnetic
Field Strength at any
distance away from a
current carrying wire.
What is B = moI / 2pr ?
Don’t Formulae to Me: $200
This formula determines
the magnitude of the force
on a current carrying
conductor in a magnetic
field.
What is
FM = IlBsinq ?
Don’t Formulae to Me: $300
This formula allows you to
determine the magnitude
of the electric field at any
point in the space between
two large parallel plates.
What is e = V/r ?
Don’t Formulae to Me: $400
This formula allows you to
determine the force on a
moving charge in a
magnetic field.
What is FM = qvBsinq ?
Don’t Formulae to Me: $500
You would derive this
expression for the velocity
of a satellite using
Newton’s Law of Universal
Gravitation and Newton’s
Second Law.
What is v = sqrt(GmE /r) ?
How much do you want to wager?
Daily Double 1 Wager
If an object experiences a
particular kind of force over a
continuous range of positions,
then this exists in that region.
What is a Force Field?
Daily Double 1 Q & A
How much do you want to wager?
Daily Double 2 Wager
Answer
Question
Daily Double 2 Q & A
Final Jeopardy
Wager
The category is:
Magnetic Fields
How much do you want to wager?
Two parallel straight conductor 10.0 cm apart.
I1 = 5.0 A is out of the page and I2 = 7.0 A is
into the page. Determine the magnitude and
direction of the magnetic field halfway between
the two wires.
B1 = 2.0 x 10-5 T
B2 = 2.8 x 10-5 T
B = B1 + B2
What is B = 4.8 x 10-5 T [UP]
Final Jeopardy Q & A
Game Over