NS2-M3C12 Astronomical Observations

Astronomy is the study of _____________.

• the atom

• the universe

• the solar system

• the zodiac

Astronomers and other scientists that speculate on the nature of the universe and its origin are called:

• Cosmetologists

• Astrologers

• Biographers

• Cosmologists

Most modern-day scientists accept the "Big Bang" theory for the origin of the universe. Another name for the "Big Bang" theory is:

• expanding-universe theory

• contracting-universe theory

• constricting-universe theory

• growing-universe theory

The "Big Bang" theory was first proposed in ________ by the Belgian astronomer Georges Lemaitre.

• 1503

• 1689

• 1689

• 1927

Scientists believe that what is now our solar system began about 4.5 billion years ago as a large cloud of _________________ from the Big Bang.

• metal and liquid

• water and dirt

• gas and dust

• light and wind

According to the "Big Bang" theory, when our solar system was forming the thermonuclear ____________ at the core of the proto-Sun released large amounts of energy and caused the proto-Sun to shine.

• Fission

• Isotopes

• Fusion

• Bomb

According to the "Big Bang" theory, creation began about _______ billion years ago when a huge explosion sent dust and gas hurtling through space in all directions.

• 13

• 31

• 131

• 113

The amount of light a telescope can collect depends entirely on :

• the number of lenses

• the precision of the lens or mirror

• the shape of the lens or mirror

• the area of it's main lens or mirror

The Newtonian telescope involves

• a reflecting telescope with the eyepiece on the side

• a reflecting telescope with the eyepiece on the end

• a refracting telescope with the eyepiece on the side

• a refracting telescope with the eyepiece on the end

The Hubble Space Telescope was placed in orbit around the Earth in:

• 1975

• 1980

• 1985

• 1990