Astronomy Quiz

What does the H-R diagram measure?

• Magnitude and distance from earth

• Temperature and distance from Earth

• Color and temperature

• Magnitude and temperature

What keeps the planets close to the sun?

• Inertia

• Gravity

• Luminosity

• Magnitude

Which of these is not a kind of star?

• Supergiants

• Main Sequence

• White Dwarfs

• Pole Star

Which color star is the hottest?

• Purple

• Red

• Green

• Blue

How does distance affect gravity?

• Larger distance=more gravity

• Smaller distance=more gravity

• Distance does not affect gravity

• Smaller distance= less gravity

Which of these is not a support of the Big Bang theory?

• Redshift

• CMB radiation

• Hydrogen/Helium ratios in the universe

• Gravitational Force

How does size relate to gravitational force of an object?

• The bigger the object the greater the gravitational force

• The bigger the object the smaller the gravitational force

• The smaller the object the greater the gravitational force

• There is no correlation

Earth and the other planets closest to the Sun are made mostly of _______

• gas
• metal
• water
• rock

This table shows the rotation period (day) and revolution (year) period for 6 planets, and Earth’s moon, all relative to Earth’s periods. Which 2 planets have shorter days than Earth?

• Jupiter and Saturn

• Venus and Mercury

• Mars and Jupiter

• Saturn and Moon

Two factors effecting the magnitude of the force of gravity between 2 objects are...

• mass and distance 
• mass and matter
• distance and weight 
• weight and mass