Of the following, the most energetic form of NON-IONIZING radiation is

Q-1: Of the following, the most energetic form of NON-IONIZING radiation is:

1) ultra-violet light
2) infra-red light
3) radar
4) microwaves
ANSWER: 1 -- ULTRA-VIOLET LIGHT

Q-2: To within one minute, what is the half-life of the neutron?

ANSWER: 11.7 MINUTES (accept: 10.7 to 12.7 minutes)

Q-3:  When radiation breaks an electron pair bond in a molecule and each fragment of the molecule gets one of the bond electrons, the molecular fragments that are formed are called:

1) ions
2) free radicals
3) stable molecules
4) gases
ANSWER: 2 -- FREE RADICALS

Q-4:  The ability of an atom to absorb neutrons is its neutron capture cross section. The unit of measurement for neutron capture cross section is:

1) the nucleus volume
2) capture capacity
3) resonance quotient
4) barn
ANSWER: 4 -- BARN

Q-5:  In EXTRA-TERRESTRIAL SPACE, heat is transferred by:

1) conduction
2) convection
3) conduction and convention
4) radiation
ANSWER: 4 -- RADIATION

Q-6: A 100-watt light bulb is left on for 10 hours. Electricity is 10 cents per kilowatt-hour. How much did it cost to operate the light bulb?

ANSWER: 10 CENTS

Q-7:  The position of a particle with respect to time is given by the equation: x = t3 + 2 where x is in feet and t is in seconds. What is the acceleration of the particle at a time of 2 seconds?

ANSWER: 12 FEET PER SECOND SQUARED

Q-8: he principle that energy may be converted from one form to another but it cannot be either created or destroyed is:

1) First Law of Thermodynamics.
2) Second Law of Thermodynamics.
3) Third Law of Thermodynamics.
4) Principle of photoelectricity.
ANSWER: 1 -- FIRST LAW OF THERMODYNAMICS.

Q-9: Photoelectric electricity is produced directly from solar energy when which of the following are absorbed in a semiconductor to create an electric current?

1) protons
2) electrons
3) neutrons
4) photons
ANSWER: 4 -- PHOTONS

Q-10:  A solar cell does NOT respond to red light, but DOES respond to green light. The solar cell will be able to respond to:

1) microwaves
2) infra-red light
3) ultraviolet light
4) all of the above
ANSWER: 3 -- ULTRAVIOLET LIGHT