Solar System and Exploration

What is a probe?

• A vehicle designed to carry equipment

• A vehicle designed to carry equipment and a crew.

• A vehicle designed to carry equipment but not a crew

• none of the above

Where would a probe most likely be sent?

• Mountain top

• Inside the Sun

• International Space Station

• Saturn

In our solar system, what force governs the motion and patterns of objects?

• Gravity keeps the Sun, asteroids, & comets orbiting Earth

• Gravity keeps the planets, asteroids, & comets orbiting the Sun

• The Sun moves in an elliptical pattern and the planets, asteroids, & comets follow the gravity of the Sun

• The equal and opposite force between the Sun and Earth keep the comets and asteroids orbiting in an elliptical pattern

How was the Space Shuttle different from previous space travel vehicles?

• The space shuttle could carry more that one person

• The space shuttle could go beyond Earth's orbit

• The space shuttle crafts were reusable

• The space shuttle was airtight

According to the data table, which planet would be the coldest?

• Mercury

• Uranus

• Jupiter

• Venus

What planet was Galileo observing when he discovered the Galilean moons?

• Earth

• Uranus

• Jupiter

• Saturn

FILL IN THE BLANKS: The ____________ the mass, the ___________________ the gravitational force.

• lesser, greater

• greater, greater

• greater, lesser

• lesser, lesser

A 200 km rocky object, rotating and orbiting was seen farther from the Sun than Earth. This could be

• the moon

• Venus

• Mars

• an asteroid

Which planet takes the longest to revolve around the Sun?

• Earth

• Mercury

• Uranus

• Neptune

Why does Neptune have the longest period of revolution?

• It travels in an elliptical path that is slower than other planets.

• It has the longest period of revolution because of its distance from the sun.

• It travels slow because of the gravitational force .

• It travels fast because of the gravitational force