Electric
Magnetic
Thermal
Modern
Optics
100
A capacitor with plate separation 2cm, is connected to a 30V battery with the positive terminal touching the left plate and the negative terminal touching the right plate. This is the size and direction of the electric field between the capacitor plates.
What is 150 V/m to the right
100
A wire carries current from right to left. A + charge is above the wire and moves from right to left. This is the direction of the magnetic force on the + charge.
What is "down"
100
If you double the pressure of a gas at 400K while you double the volume, this is the new temperature.
What is 800K
100
One eV is how many Joules?
What is 1.6x10^-19 J
100
-This is the lens that always produces virtual images. -This is the mirror that always produces virtual images.
What is -concave (diverging) -convex
200
A 40 Ohm resistor is connected to a 20V battery. This is the electric energy used by the resistor in one minute.
What is 600 J
200
Two wires carry current and exert a force F on each other. If you double the current in one of the wires, and place the wires at half the previous distance from each other, this is the new force on the wires.
What is 4F
200
These are all four fundamental thermal processes for a gas to take on a PV diagram and what is unique for each one.
What is "adiabatic for not heat exchanged Q=0" "isothermal for constant T or no change in internal energy" "isobaric for constant pressure" "isovolumetric (isochoric, isometric) for constant V, or W=0"
200
If a nucleus of atomic number z=45 and mass number A=90, undergoes a beta decay, this is the new atomic number and mass number.
What is z=46, and A=90
200
An object is placed 4 cm away from a concave mirror that has a radius of curvature 16 cm. This is the position of the image, magnification of the image, and whether it is virtual or real
What is -8 cm, +2, virtual
300
Four +2nC charges are arranged in a square of diagonal length 4 cm. This is the size of the electric potential in the middle of the square.
What is 3600 J/C (or Volts)
300
A +3C charge is directed in a circle of 2m radius, by a 6 Tesla magnetic field while the charge is traveling at 10m/s. This is the mass of the charge.
What is 3.6 kg
300
These are the first and second laws of thermodynamics.
What is "Change in internal energy = heat into + work done on" "Entropy never decreases, or heat flows from hot to cold"
300
The maximum stopping potential required for an electron is 8V after being emitted from a metal with 20 eV photons shining on it. This is the work function of the metal in eV.
What is 12 eV
300
An object is placed 9 cm from a diverging lens. The distance from the lens to the focal point is 9cm. This is the position, magnification, and type (virtual or real) of image.
What is -4.5, 0.5, virtual
400
A 12V battery connected to four 192 Ohm resistors in parallel, allows this much charge to pass though the battery in four minutes.
What is 60 C
400
A loop or wire with area 3m^2, and resistance 10 Ohms is quickly moved to a region with a 5T magnetic field pointing out of the board in such a way that it catches the most flux. If it took 2 seconds to move the wire to the region with magnetic field, this is the size and direction (CW or CCW) of the induced current.
What is 0.75A going CW
400
This is the efficiency of an engine that expends 60 J of waste heat while it raises a 3 kg mass 1m.
What is 0.33 or 1/3
400
In the photoelectric effect, -this is how you would increase the number of electrons. -this is how you would increase the KE of electrons. In Compton scattering (photons hit electrons at rest), -this is what happens to the energy, wavelength, and frequency of the photons. -this is what happens to the energy, and DeBroglie wavelength of the electrons
What is -increase intensity (number of photons) -increase frequency (energy of photons) -E and frequency go down, wavelength goes up -E goes up, and DeBroglie wavelength goes down
400
Light is shone though a diffraction grating with slit spacing 8x10^-7 m. The angle made to the first constructive point is 30 degrees. This is the wavelength of the light, and what color we would see it.
What is 4x10^-7 m
500
Negative charges feel a force toward -(higher or lower) electric potential -(higher or lower) electric potential energy -(same direction or opposite direction) of electric field -(protons or electrons)
What is (they must get each one correct) -higher electric potential -lower potential energy -opposite direction of electric field -protons
500
A bar of length 1.5m is pulled with a speed of 20 m/s to the right through a region of magnetic field. If the voltage generated is 90 Volts (with the top positive and bottom negative), this is the size and direction of the magnetic field.
What is 3T pointing into the board
500
A 2kg mass of aluminum (900 J/kgC) at 40C is dropped in a 1kg aluminum container holding a liquid (1000 J/kgC) at 0C. If the equilibrium temperature reached is 10C, this is the mass of the liquid.
What is 4.5 kg of liquid
500
An atom at rest has a mass M, and spontaneously decays into into two parts (m1 and m2). Mass m1 moves with KE1. In terms of the variables given, this is an expression for the kinetic energy of mass m2. (KE2 =?)
What is KE2 = Mc^2 -KE1 -m1c^2 -m2c^2
500
Light of is shone on a thin film of water of thickness d. The water is surrounded by air on both sides. If the light has a wavelength of 8x10^-7 m inside the water, then this is the smallest thickness of the water film that will provide constructive interference.
What is 2x10^-7 m
M
e
n
u