Moon & Tides

Which moon phase is shown in this diagram?

• new moon
• first quarter
• full moon
• last quarter/3rd quarter

What causes tides?

• gravity
• wind
• spring
• neap

When the moon is at full moon or new moon, what type of tide will we experience?

• rip tide
• spring tide
• neap tide
• breaker tide

What happens when there is a spring tide

• high tides 
• really high tides
• low tides

When the Moon, Earth, and Sun are lined up as seen here, the gravity of the sun plus the gravity of the moon cause _________ tides on Earth.

• low
• neap
• slow
• spring

Both the Moon and the Sun influence the tides on Earth. The moon has a much greater influence though. Why is that?

• because the Sun is much less dense
• because the Sun is gaseous, not solid
• because the Sun is so far away from Earth
• because the Sun is less massive than the Moon

On average, how many tides are there during one full rotation of the earth about its axis?

• One high and one low tide
• Varies depending on the phase of the moon
• two high and two low tides
• one high and two low tides

On average, how long does it take to move from a high tide to a low tide?

• 6 hours exactly
• 12 hours exactly
• A little bit longer than 6 hours
• A little bit shorter than 6 hours

What is a difference between spring and neap tides?

• Spring tides occur when the earth and sun are IN LINE with the new or full moon. 
• Spring tides occur when moon in 3rd or 1st quarter phases
• Spring tides are LOWER than neap tides
• Spring tides occur in Spring and neap tides can occur in any season

Which body has the greater effect on Earth's tides?

• Sun
• Saturn
• Moon 
• Venus