Tides

Tides are caused by what force from the sun and moon?

• gravitational

• strong

• tidal force

• armed forces

As the moon revolves around the earth, the water follows the motion and causes...

• sea levels

• waves and currents

• moon phases

• high tides and low tides

Spring tides have the largest tidal ranges because...

• the earth, moon, and sun are aligned for greater gravitational force.

• the moon has the strongest gravitational force.

• the sun has the most gravitational force.

• none of the above

High tides and low tides each happen _____ times per day.

• 4

• 2

• 1

• 24

Which of the following greatly contribute to high tides?

• earth's gravitational pull on moon

• sun's gravitational pull on moon

• sun's gravitational pull on earth

• moon's gravitational pull on earth

Janis lives near the ocean. What observations can Janis make about the moon's phases that she can relate to the ocean's tides?

• that the moon phases effect high tides and low tides

• the moon does not affect the tides

• waxing and waning crescents affect the tides

• only new moon and full moon affect the tides

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

• Sun

• Saturn

• Moon

• Venus

Wha type of tide would this arrangement of earth-moon-sun create?

• full moon tide
• new moon tide
• neap tide
• spring tide

The sun influences the tides just as much as the moon.

• True

• False

The moon is mainly responsible for the tides on Earth because it is _________ _________.

• much closer

• far away

• behind the sun