Phases, Eclipses, and tides

What must be true for a solar eclipse to occur?

• The sun must be between Earth and the moon

• The moon must be directly between Earth and the sun

• The Earth must be between the sun and the moon

• The moon must be full

What causes day and night on Earth?

• The moon’s orbit around Earth

• Earth’s rotation on its axis

• The sun’s movement around Earth

• Earth’s revolution around the sun

How long does it take to go from I to E

• 1 week

• 2 weeks

• 3 weeks

• 4 weeks

Why does Earth have seasons?

• Because the sun changes size

• Because Earth’s axis is tilted as it moves around the sun

• Because the moon blocks sunlight

• Because Earth’s orbit is a perfect circle

During a total Lunar eclipse the moon is in whose umbra?

• Sun

• Earth

• Moond

During which phase of the moon can a lunar eclipse occur?

• New Moon

• First Quarter

• Full Moon

• Third Quarter

What is inertia?

• The tendency of an object to change direction

• The tendency of a moving object to continue moving in a straight line or a stationary object to remain in place

• The force that pulls objects toward Earth

• The process of the moon changing phases

Why are you less likely to see a total solar eclipse than a total lunar eclipse?

• The moon’s umbra only covers a small area on Earth’s surface

• The sun is too bright

• The moon is always visible

• The Earth’s shadow is too large

How long does it take for earth to rotate

• 24 hours

• 16 hours

• 18 hours

• 12 hours

What are the phases shown in B and H called?

• Gibbous Moons

• Quarter Moons

• Crescent Moons

• Full Moons