Translational and Rotational Dynamics
Momentum, Energy, and Gravitation
Magnetism
Electrics
Petsko's Choice
100
Friction's relationship to the direction of motion.
What is opposition?
100
Conserved in perfectly inelastic collisions.
What is momentum?
100
The long term behavior of an inductor in a circuit.
What is a wire?
100
Kirchoff's Laws.
What is the total potential difference across a loop in a circuit must be zero, and the sum of current going out of a junction is equal to the current going into the junction?
100
George.
What is no?
200
The direction of centripetal forces.
What is toward the center of rotation?
200
The total amount of work done upon a box from r=0 to r=4 by a force, where F=4/(r+1).
What is 6.44 J?
200
Lenz's Law.
What is the induced current in a conductor as the result of a changing magnetic field will be oriented such that a new magnetic field is created which opposes the change.
200
The sign of the work vector when a dielectric (k>1) is inserted into a charging capacitor.
What is negative?
200
Mr. Petsko's job before teaching.
What is wharehouse management?
300
The expression for the tension force of a pendulum of mass m, length l, velocity sqrt(1/3*gL) at the bottom of its arc.
What is T=4mg?
300
The magnitude and direction of the velocity of a 0.30 kg cart, which is moving at 2.0 m/s to the right collides with a 0.10 kg cart, initially moving at 3.0 m/s to the left. After the collision, the 0.10 kg cart moves to the right with a speed of 1.2 m/s. Assume friction is negligible.
What is 0.60 m/s?
300
The conditions in which Ampere's Law is a useful tool for finding the magnitude of a magnetic field.
What are closed loop paths?
300
The induced current in a square loop with 1cm side length placed entirely inside an orthogonally oriented uniform magnetic field of 5 cT.
What is 0 A?
300
The (x,y) coordinates of the center of mass of the following system: 3kg at (0,2), 2kg at (3,1), and 1kg at (-2,4).
What is (2/3, 2)?
400
The amount of work done if a wheel with rotational inertia 0.04 kgm2 and radius 0.02 m is turning at the rate of 10 revolutions per second when a frictional torque is applied to stop it.
What is -8pi2 J?
400
The total change in kinetic energy in the system if the collision is perfectly elastic.
What is K2-K1=-mv2/3?
400
The expression for the amount magnetic flux passing through a regular hexagon of 3cm in side length oriented at 60 degrees from a uniform magnetic field at time t, where B=4/(t+1).
What is phi=4/(t+1)*3sqrt(3)(0.03)2/2*cos(30)?
400
The expression for the period of an LRC circuit.
What is T=2pi*sqrt(LC)?
400
A box of mass m slides down a ramp from rest at 60 degrees from the horizontal with a drag force of F=-Bv (where B is a positive constant). Friction is negligible.
The differential equation which could be used to solve for velocity at time t.
What is dv/dt=(mgsin(60)-Bv)/m?
500
The acceleration of a system in which a block m1 is initially at rest on an incline plane. The block is connected to a second block m2, of mass, 2m1 via a massive disc pulley of mass mr=m1/2, and radius R. The moment of inertia of the pulley is 1/2mrR2 and the coefficient of friction between the ramp and m1 is uk. The ramp is angled at 14 degrees above the horizontal.
What is 4/13*g(2-ukcos(14)-sin(14))?
500
The total mechanical energy of a system in which the Earth is stationary, and the Moon as orbiting Earth in a circle of radius R if the masses of Earth and the Moon are ME and MM.
What is E=-GMEMK/R?
500
The expression for the power dissipated by the loop at time t.
What is P=s4w2B02sin2(wt)/R ?
500
The nonzero magnitude of the electric field at the center of a thin conducting half circle with a total length of 1cm and a charge of 30uC.
What is 5,400,00 N/C?
500
Expression of the voltage V of a discharging capacitor in an RC circuit at some time t.
What is V=V0e-t/RC?