Exsam 7 Flashcards
Which region of the atmosphere is farthest from the earth?
Thermosphere
Which region of the atmosphere is closest to the earth?
Troposphere
Which region of the atmosphere is the warmest?
Thermosphere
The ionosphere contains?
negatively and positively charges ions.
The ionosphere bends?
Radio waves back towards the earth.
The Van Allen belt is?
Produced by the earths magnetic fields.
The material on the surface of the moon is similar to?
Basalt
If the moons atmosphere were similar to the earths stars bear the moon would appear?
Red
The shape of the magnetic fields around the earth is influenced by the?
Solar wind
All objects in the the universe give off?
Radio waves
Scientist now believe that atoms are made up of smaller, elementary particles called?
Quarks
By using enzymes scientist can remove and substitute sections of?
DNA
Streams of protons and electrons moving through space from the sun?
Solar wind
Unexplained lights which appear in the night sky?
Aurora borealis
Instrument which measures radiation?
Geiger counter
Unknown objects that travel at great speeds outside out galaxy?
Quasars
Space objects which emit regularly paces radio signals?
Pulsars
An instrument used to detect and record radio wave emitted from objects in space.
Radio telescope
The study of quasars and pulsars?
Astrophysics
Charged particles that possibly originate from exploding stars?
Cosmos rays
Focuses a beam of high energy sound waves on an object to show differences in density and viscosity in the body?
Ultrasound microscope
The removal of an electron from an atom by high energy sun rays?
Photo emission
