Earth in Space

How many times does the moon revolve around Earth during one revolution of Earth around the Sun?

• one

• 12

• 365

• 24

The moon's rotation is

• faster than its revolution.

• slower than its revolution

• half as fast as its revolution.

• about the same as its revolution.

Planets in the Solar System are in constant motion. What factor has the greatest effect on the orbits of the planets?

• the size of the planets

• gravitational pull of the Sun

• the composition of the planets

• electromagnetic radiation from the Sun

One difference between the Moon and Earth is that the Moon

• has a thicker atmosphere.

• revolves around a planet.

• has liquid on the surface.

• is composed entirely of sedimentary rock.

Tides on Earth are influenced more by the moon than the Sun because the moon is:

• brighter than the Sun.

• larger than Earth.

• Colder than Earth

• Closer to the Earth

When the Northern Hemisphere is titled toward the Sun, what season is it in Australia?

• fall

• winter

• spring

• summer

How many degrees is the Earth tilted?

• 16.5

• 23.5

• 32.5

• 66.5

Which of the following is a direct result of Earth's tilt on its axis?

• seasons

• weather

• gravity

• tides

Tides occurs on Earth at regular times of the day because:

• the tilt of the Earth's rotational axis.

• the gravitational pull of the moon and the sun.

• temperature changes.

• revolution of the Earth.

What force of Earth keeps the moon in orbit?

• electrical force

• gravitational force

• magnetic force

• mechanical force