RADT 142 test 1 UPDATED ACTUAL
QUESTIONS and CORRECT Answers
What is the name of the tube that is a sensor to fluorescent lights and gives out light? -
CORRECT ANSWER - crooke's tube
who discovered X-ray? - CORRECT ANSWER - Wilhelm Conrad Roentgen
what chemical fluoresced when X- rays hit it? - CORRECT ANSWER - barium
platinocyanide
what's the date X-rays were discovered? - CORRECT ANSWER - November 8, 1895
where did the X in X ray come from? - CORRECT ANSWER - the unknown is designated
X
what are the properties of X-rays? - CORRECT ANSWER - Polyenergetic
Invisible
Travel in Straight Lines
Scatter/Secondary Radiation
Highly Penetrating
Ionizes
Darken Photographic film
, Electrically neutral
Cannot be focused by a lens
Chemical/Biological Changes
transfer of heat through a material or by touching - CORRECT ANSWER - conduction
the mechanical transfer of "hot" molecules in a gas or liquid from one place to another -
CORRECT ANSWER - convection
transfer of heat by the emission of infrared radiation - CORRECT ANSWER - thermal
newton's first law - CORRECT ANSWER - *law of inertia
*(A body will remain at rest or continue moving unless acted upon by an external force)
ex: it will stay there forever until an external force comes
newtons second law - CORRECT ANSWER - force=mass X acceleration
newtons third law - CORRECT ANSWER - to every action there is an equal and opposite
reaction
potential energy - CORRECT ANSWER - ability to do work by virtue of position
ex: ball at top of hill and wall at bottom of hill. ball has potential energy due to position
QUESTIONS and CORRECT Answers
What is the name of the tube that is a sensor to fluorescent lights and gives out light? -
CORRECT ANSWER - crooke's tube
who discovered X-ray? - CORRECT ANSWER - Wilhelm Conrad Roentgen
what chemical fluoresced when X- rays hit it? - CORRECT ANSWER - barium
platinocyanide
what's the date X-rays were discovered? - CORRECT ANSWER - November 8, 1895
where did the X in X ray come from? - CORRECT ANSWER - the unknown is designated
X
what are the properties of X-rays? - CORRECT ANSWER - Polyenergetic
Invisible
Travel in Straight Lines
Scatter/Secondary Radiation
Highly Penetrating
Ionizes
Darken Photographic film
, Electrically neutral
Cannot be focused by a lens
Chemical/Biological Changes
transfer of heat through a material or by touching - CORRECT ANSWER - conduction
the mechanical transfer of "hot" molecules in a gas or liquid from one place to another -
CORRECT ANSWER - convection
transfer of heat by the emission of infrared radiation - CORRECT ANSWER - thermal
newton's first law - CORRECT ANSWER - *law of inertia
*(A body will remain at rest or continue moving unless acted upon by an external force)
ex: it will stay there forever until an external force comes
newtons second law - CORRECT ANSWER - force=mass X acceleration
newtons third law - CORRECT ANSWER - to every action there is an equal and opposite
reaction
potential energy - CORRECT ANSWER - ability to do work by virtue of position
ex: ball at top of hill and wall at bottom of hill. ball has potential energy due to position
