Celestial Cycles Unit Test

What is gravity?

• A type of energy

• A force that causes objects to repel each other

• A force that causes objects to attract each other

• A large celestial object, such as a planet or star

The sun’s gravity helps:

• keep the moon in orbit around the Earth

• keep the Earth in orbit around the Sun

• to shape the Earth as a sphere

• to control the tides on Earth

What motion is responsible for night and day?

• The rotation of Earth

• The rotation of the moon

• The revolution of Earth around the sun

• The revolution of the moon around the Earth

What motion is responsible for the seasons?

• The rotation of the sun

• The rotation of the Earth

• The revolution of Earth around the sun

• The revolution of the sun around the Earth

What results from the movement of the moon around Earth?

• night and day

• the seasons

• phases of the moon

• high and low tides

What celestial cycle results from the Earth’s revolution around the sun?

• Seasons

• Day and Night

• Lunar Cycle

• Tidal Cycle

The lunar cycle explains:

• why we have day and night

• why we have seasons

• the different phases of the moon

• the cycling the high and low tides

The tidal cycle is due to:

• Earth’s rotation

• Earth’s revolution around the sun

• the moon’s revolution around Earth

• Both Earth's rotation AND the moon's revolution around Earth

How does the sun appear to move across the sky?

• From north to south

• From south to north

• From east to west

• From west to east

What term do we use to describe the height of the sun in the sky?

• Altitude

• Elevation

• Depth

• Opaque