It has been said that the universe will die an "entropy death". This means that

Q-1: It has been said that the universe will die an "entropy death". This means that:

1) the universe will eventually explode.
2) the universe will be at the same temperature everywhere.
3) the universe will collapse into a black hole.
4) matter and antimatter will never combine.
ANSWER: 2 -- THE UNIVERSE WILL BE AT THE SAME TEMPERATURE
EVERYWHERE.

Q-2: What is the color of light emitted from an Argon-Ion laser?

ANSWER: GREEN or BLUE-GREEN

Q-3:The type of radiative scattering commonly associated with the atmosphere and the reason the sky is blue is called what?

ANSWER: RAYLEIGH SCATTERING

Q-4:Radiant energy emitted from a blackbody is only a function of what?

ANSWER: TEMPERATURE

Q-5: Two coal trains, one southbound, the other westbound, reach an over and under crossing at the same instant and each proceed at 40 kilometers per hour on their respective courses. Approximately how far apart are the lead cars two hours later, to the nearest kilometer?

1) 80
2) 113
3) 136
4) 160
ANSWER:2 -- 113

Q-6:State the unit of electromagnetic induction.

ANSWER: GAUSS OR TESLA

Q-7:Which of the laws of Thermodynamics is often invoked to discredit attempts at perpetual motion?

ANSWER: SECOND LAW OF THERMODYNAMICS

Q-8: A ball is dropped from a height of 256 feet. The acceleration due to gravity is 32 feet per second squared. How many seconds will it take for the ball to reach the ground?

ANSWER: 4

Q-9: A resistor of value R/2 is connected in parallel with a resistor of value R/3. The voltage drop across the parallel combination is V. The total current supplied by the voltage source is:

1) 2 V/R (read: 2 V over R)
2) 3 V/R (read: 3 V over R)
3) 4 V/R (read: 4 V over R)
4) 5 V/R (read: 5 V over R)
ANSWER:4 -- 5 V/R

Q-10: The idea that we CANNOT know both the position and velocity of a subatomic particle at the same time was formulated by:

1) Einstein
2) Heisenberg
3) Fermi
4) Schroedinger
ANSWER: 2 -- HEISENBERG

Q-11: Suppose a crane lifts a 900 kilogram wrecking ball 12 meters above a concrete slab. 105,840 Joules of potential energy are stored in the wrecking ball. Now the ball is dropped. When the ball is 6 meters above the concrete slab, what is it's potential energy in Joules?

ANSWER: 52,920 JOULES