A piano tuner notices a standing Lissajous (pron: Liss-a-jew) curve on his oscilloscope. The tone being projected is

Q-1: A piano tuner notices a standing Lissajous (pron: Liss-a-jew) curve on his oscilloscope. The tone being projected is:

1) out of harmony
2) sharp
3) resonating
4) flat
ANSWER: 3 -- RESONATING

Q-2: Photons and gravitons are names associated with a category of particles called:

1) mesons
2) bosons
3) leptons
4) baryons
ANSWER: 2 --BOSONS

Q-3:An electron is moved through a potential difference of 1 volt. How much energy in joules was used to move the electron?

ANSWER: 1.6 x 10-19 JOULES

Q-4: Who said this about alpha particles and the reflection of these particles from thin foils? "It was about as credible as if you fired a 15-inch shell at a piece of tissue paper and it came back at you."

ANSWER: RUTHERFORD

Q-5:A string of length L is fixed between two points. If a standing wave of 5 nodes is produced, what is the relationship between the string's length, L, and its wavelength?

ANSWER: WAVELENGTH = 1/2 L

Q-6: A freight car weighing 20 tons and moving at a speed of 7 miles per hour on a horizontal track collides and couples with a stationary car that weighs 15 tons. Neglecting friction, determine the velocity of the coupled cars.

ANSWER: 4 MILES PER HOUR

Q-7: The Grand Unified Theory of the forces of nature combines three of the four forces. Which force is NOT included?

1) gravitational
2) electromagnetic
3) weak nuclear
4) strong nuclear
ANSWER: 1 -- GRAVITATIONAL

Q-8: A person who is nearsighted will need what type of lenses in his glasses in order to see correctly?

ANSWER: DIVERGING or CONCAVE LENSES

Q-9: If a car is traveling at 20 meters per second in a straight line, how many seconds will it take the car to stop if it decelerates at 5 meters per second squared?

ANSWER: 4 SECONDS

Q-10:  Which of the following men was involved with the first controlled nuclear reaction?

1) Linus Pauling
2) Nelson Sartoris
3) Edward Teller
4) Enrico Fermi
ANSWER: 4 -- ENRICO FERMI

Q-11:  If the half-life of a radioisotope is 2 days, after how many days is the quantity reduced to 12.5% of its original amount?

1) 4 days
2) 6 days
3) 8 days
4) 10 days
ANSWER: 2 -- 6 DAYS

Q-12: What term which begins with the letter "A" is used to describe the reduction in intensity of radiation as it passes through matter?

ANSWER: ATTENUATION