Solar System

What is gravity?

• force of magnetism
• force of attraction
• balanced force

What is another name for the terrestrial planets?

• inner planets
• outer planets
• asteroids
• comets

Which object in space orbits the sun in a very stretched ellipse?

• asteroid
• comet
• planet

What is a burning piece of space rock in Earth' s atmosphere called?

• meteoroid
• meteor
• meteorite

Which of the following is a characteristic of a dwarf planet?

• does not have moons
• orbit crosses path of other objects in space
• has an atmosphere

What is the distance light travels in a year?

• an astronomical unit
• light speed
• a light year

Both asteroids and comets -

• are made of ice
• contain rocky material
• orbit planets

Which of the following does NOT describe both asteroids and comets?

• Left over pieces from the formation of planets and moons
• orbit the sun
• have a nucleus

Where are the inner planets located?

• between the sun and the Earth
• between Mars and the Kuiper Belt
• between the sun and the asteroid belt
• between Neptune and the Oort Cloud

What is another name for the gas giants?

• inner planets
• outer planets
• asteroids
• comets