Cycle Test 3 February 2023

            Which of the following is NOT considered a terrestrial-planet?

• Mars

• Venus

• Neptune

• Mercury

The largest of the terrestrial planets is

• Jupiter

• Earth

• Mars

• Uranus

According to scientists, the solar system formed from

• colliding planetesimals.

• rotating stars.

• colliding nebulae.

• a rotating disk of dust and gases.

The fact that Mercury has no atmosphere is evidence that it

• reflects almost all of the sunlight that strikes it.

• is composed almost entirely of gases.

• is much farther from the sun than it appears.

• reflects a small percentage of the sunlight that strikes it.

When viewed from Earth, Mars appears to change colors. This most likely happens because

• gases in the dense Martian atmosphere are constantly changing.

• volcanic activity produces thick gas clouds.

• dust storms lasting for weeks cause the atmosphere to change color.

• active volcanoes on the Mars surface intermittently flood the surface with lava.

What is the mass of Jupiter?

• 2.5 times the mass of Earth

• twice the mass of all the terrestrial planets

• about half the mass of all the Jovian planets

•  2.5 times the mass of all the other planets and their moons

Which planet has the lowest surface temperature of any planet and an atmosphere comprised mostly of nitrogen?

• Jupiter

• Saturn

• Neptune

• Uranus

Which planet has an axis of rotation parallel with the plane of its orbit?

• Jupiter

• Saturn

• Neptune

• Uranus

Most asteroids lie between the orbits of

• Jupiter and Saturn.

• Mars and Jupiter.

• Jupiter and Neptune.

• Mars and Earth.

How many known planets are in our solar system?

• 4

• 7

• 8

• 9