Space, time, and motion
The particle nature of matter
Wave behavior
Fields
Nuclear and quantum physics
100
Name and/or describe all 3 of Newton's Laws of Motion
1) Law of inertia
2) F = ma
3) Action/reaction
100
What is the difference between heat and temperature?
Temperature is the average speed of particles in a substance. Heat is thermal energy flowing from one substance to another.
100
Name all the parts of the following wave:
1) Wavelength
2) Trough
3) Amplitude
3) Crest
100
What is the difference between "potential" and "potential energy"?
Potential is potential energy per unit mass or charge. It is also based only on position in a field.
100
Name and describe the 3 types of radioactive decay.
1) Alpha: Helium nucleus is shot off
2) Beta: Neutron turns into a proton and electron
3) Gamma: Electromagnetic radiation
200
Starting at the bottom of a hill, you roll a cart up the hill with an initial velocity of 12m/s. Gravity is causing the cart to accelerate down the hill (backwards) at -3m/s2. What is the cart’s displacement after 6 seconds? Assume "up the ramp" is positive
+18m
200
A 2kg pot of water is placed over a fire that releases 45kJ of thermal energy. If the water started at 13C, what was the final temperature of the water? The specific heat of water is 4.186kJ/kg.
18.4C
200
An ambulance siren emits a sound of frequency 1200Hz. The speed of sound in air is 345m/s. The ambulance moves towards a stationary observer at a constant speed of 40m/s. What is the frequency heard by the observer?
1375 Hz
200
An object on the surface of the Earth (radius 6378km) has a weight force of 60N. How much would it weigh if it was 12,756km above the surface of the Earth?
6.67N
200
The half-life of Ra-226 decaying into Rn-222 is 20 seconds. What is its decay constant?
0.035s-1
300
A projectile is launched with an initial velocity v at an angle theta above horizontal. The projectile lands at the same height it was launched from. Air resistance is negligible. What is the flight time of the projectile in terms of v, g, and theta?
vsin(theta)/g
300
A sample of n moles of an ideal gas are kept at a constant volume. Pressure increases from P1 to P2 and temperature increases from T1 to T2. What is the volume of the gas in terms of n, R, T, and P?
nR(T2-T1)/(P2-P1)
300
A 4th harmonic standing sound wave is formed in a pipe of length L that is open at both ends. What is the wavelength of the wave in terms of L?
L/2
300
Two point charges, +Q and -Q are held a distance d from each other. What is the magnitude of the electric field strength midway between the charges in terms of k, Q, and d?
8kQ/d2
300
A nucleus of uranium-235 (atomic number 92) absorbs a neutron and undergoes fission. The two daughter atoms created are Xenon-140 (AN 54) and Strontium-94 (AN 38). How many neutrons are produced by this reaction?
2
400
An observer on Earth observes a spaceship moving away from them. The spaceship is 100 meters long, but the observer on Earth only measures it as 91m. How fast is the spaceship moving away from the Earth (in terms of c)?
0.4c
400
The image up on the board shows a PV diagram of a Carnot Cycle. For each step of the process, state if the temperature is increasing, decreasing, or constant and if the work being done by the system is positive (output), negative (input), or none.
A-B: Temp constant, work negative
B-C: Temp decreases, work negative
C-D: Temp constant, work positive
D-A: Temp increases, work positive
400
A pendulum has a mass of 0.7kg, string length of 0.43m, and maximum amplitude of .06m. Assume the pendulum undergoes simple harmonic motion. What is the maximum kinetic energy of the pendulum?
8.17J
400
A circular conducting wire of area 0.8m2 and 60 turns (coils) is spun at a frequency of 10Hz in a magnetic field of strength 50mT. This generates an electrical current through the wire. What is the magnitude of the average emf induced in the wire?
96V
400
List 2 differences between the fusion process that occurs within stars and the one that experiment fusion power plants use.
1) Stelar fusion is thermonuclear
2) Controlled fusion starts with isotopes of heavy hydrogen