Solar System Review

Solar System Review

PMA Review

Multiple Choice

What determines the length of a planet's year?

• the time it takes to rotate on its axis

• the time it takes to revolve around the

  Earth

• the time it takes to revolve around the sun

• the time it takes to rotate around the sun

Multiple Choice

Which planet would most likely have a longer year - the one closer or farther from the sun?

• the closer to the sun, the longer the year

• the farther away, the longer the year

• neither, it depends on the rotation

• the distance from the sun would not matter

Multiple Choice

Which model has greater gravitational attraction (if any)

• Model A

• Model B

• Both Model A and Model B (same gravity)

Multiple Choice

As mass increases, what happens to gravitational force?

• increases

• decreases

• stays the same

• i don't know

Multiple Choice

What two things determine the gravity of an object?

• mass & weight

• mass & distance

• density & mass

• volume & distance

Multiple Choice

Why is Mercury not the hottest planet when it is the one closest to the sun??

• it has a large ozone layer

• it has no liquid water

• it has hardly any atmosphere to insulate it

• it has a very heavy atmosphere

Multiple Choice

Which unit of measurement is used to measure distances within our solar system?

• inches

• kilometers

• miles

• Astronomical units

Multiple Choice

The distance light can travel in one year is ______________

• 15,000 kilometers

• 1 light-year

• 15 Astronomical Units

• 6,000 miles

Multiple Choice

The chart below displays the names of different stars and their colors. Which of the groups below best orders the stars from hottest to coolest?

• A. Antares, Spica, Sun, Aldebaran

• B. Sun, Spica, Antares, Aldebaran

• C. Spica, Sun, Aldebaran, Antares

• D. Antares, Aldebaran, Sun, Spica

Multiple Choice

Why do other stars appear so much smaller than the sun?

• They are much smaller
• They are so far away
• They are not as bright
• They are dwarf stars

Multiple Choice

In the diagram given, what happens as we move to the left?

• Stars Get Larger
• Stars get Colder
• Stars get hotter

Multiple Choice

Stars that are very bright, large & burn at the highest temperature

• Blue Giant stars

• Red Giant

• White dwarves

• Proton stars