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Tides and Tilts

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Which best explains why Earth has tides?
a.
Earth orbits the sun
c.
the Sun has a gravitational pull on Earth
b.
Earth rotates on its axis
d.
the Moon has a gravitational pull on Earth
 

 2. 

What is the major cause of ocean WAVES?
a.
the wind
c.
salinity
b.
Moon’s gravity
d.
Earth’s rotation
 

 3. 

Why does the Earth have seasons?
a.
because the temperature of the sun changes
c.
because the Earth’s axis is tilted as it moves around the sun
b.
because the distance between Earth and the Sun changes
d.
the seasons are caused by the ocean currents
 

 4. 

mc004-1.jpg
In which position is the Moon located when tides on Earth are especially high and low?
a.
1
c.
3
b.
2
d.
4
 

 5. 

Tides are caused mainly by
a.
Earth’s rotation on its axis, which cause water to move
c.
strong winds blowing water onto the seashore
b.
gravitational forces between the land and water
d.
differences in how much the moon and sun pull on different parts of Earth.
 

 6. 

There are MORE hours of sunlight in the Northern Hemisphere during which season?
a.
spring
c.
fall
b.
summer
d.
winter
 

 7. 

Which repeating cycle is responsible for the four seasons that occur on Earth?
a.
rotation of the moon
c.
revolution of the Moon around the Earth
b.
rotation of the Sun
d.
revolution of the Earth around the sun
 

 8. 

What season does the Southern Hemisphere have when the Northern Hemisphere is tilted away from the Sun?
a.
Summer
c.
Fall
b.
Winter
d.
Spring
 

 9. 

The imaginary line that runs through the center of Earth from the North pole to the South pole is called the
a.
equator
c.
Tropic of Cancer
b.
axis
d.
Tropic of Capricorn
 

 10. 

In astronomy class, students are looking at this alignment of the Sun, Moon, and Earth.  Which effect does the right angle alignment have on Earth?
mc010-1.jpg
a.
there will be a solar eclipse on Earth
c.
the high tide will be lower than normal on Earth
b.
a full Moon will be observed from Earth
d.
an increased gravitational force will be exerted on Earth
 

 11. 

Which of these statements is true about the Earth’s tilt?
a.
it causes the change in the tides
c.
it causes the number of days in a month to change
b.
it is responsible for the eclipses
d.
the 23.5 degree tilt of Earth’s axis casuses the seasons
 

 12. 

Surface currents are caused by
a.
the Moon’s gravity
c.
the wind
b.
the Sun’s gravity
d.
increased water density
 

 13. 

Winds and currents move in curved paths because of
a.
the Coriolis effect
c.
longshore drift
b.
wave height
d.
tides
 

 14. 

Which event happens on a daily basis?
a.
cliffs erode
c.
volcanoes erupt
b.
at sunset
d.
high and low tides
 

 15. 

Tides of the ocean are mostly caused by
a.
the moon
c.
wind
b.
earthquakes
d.
fish?
 

 16. 

Two high tides and two low tides occur on Earth every
a.
day
c.
week
b.
hour
d.
month
 

 17. 

mc017-1.jpg
On the Earth’s surface, when it is summer at point A, it is winter at point B.  Which best explains why it is winter at point B?
a.
point b is closer to a pole than point A, so it is always farther from the Sun
c.
Point b is located in an area where ocean and atmospheric currents tend to circulate heat away from it
b.
the elevation of point b is greater than that of point A, so it has less atmosphere to absorb sunlight
d.
Point B is located in the Southern Hemisphere, so Earth’s axial tilt causes it to receive less sunlight than point A.
 

 18. 

During an Equinox, which part of the Earth is getting the most radiation from the Sun?
a.
the axis
c.
the Tropic of Cancer
b.
the Equator
d.
the Tropic of Capricorn
 

 19. 

Spring tides occur when
a.
the moon is in the first quarter phase
c.
the sun and moon are at right angles to the Earth
b.
the moon is in the last quarter phase
d.
the sun and moon form a straight line with Earth
 

 20. 

mc020-1.jpg
During certain times of the year, some places have 24 hours of darkness or 24 hours of daylight.  Which of these locations is having 24 hours of darkness?
a.
W
c.
Y
b.
X
d.
Z
 

 21. 

What causes the tides in Earth’s oceans?
a.
the rotation of the Sun
c.
Earth’s revolution around the Sun
b.
solar energy from the Sun
d.
gravity of the Sun and the Moon
 

 22. 

When the Northern Hemisphere is tilted away from the Sun causing the rays of light to hit Earth at large angles, which season occurs?
a.
winter
c.
summer
b.
spring
d.
fall
 

 23. 

In addition to the Earth’s tilt on its axis, what causes seasons on Earth?
a.
Earth’s rotation on its axis
c.
Earth’s revolution around the Sun
b.
the Sun’s distance from Earth
d.
the Moon’s gravitational pull on Earth
 

 24. 

mc024-1.jpg
The diagram above shows a view of the Earth and the Moon.  The highest high tides and lowest low tides are called Spring tides.  Which positions of the Moon will cause Spring tides?
a.
1 and 2
c.
1 and 3
b.
2 and 4
d.
3 and 4
 

 25. 

mc025-1.jpg
Even though Earth rotates once about every 24 hours, the number of daylight hours changes during the year.  During which  month will the Southern Hemisphere have days with the fewest number of daylight hours?
a.
December
c.
March
b.
June
d.
September
 

 26. 

Revolution is
a.
one journey around the Sun and takes one year
c.
caused by the Moon
b.
one day and one night!
 

 27. 

The daily ocean tides are caused by
a.
the heat from the Sun
c.
an earthquake
b.
the Moon’s gravity
d.
strong winds
 

 28. 

Shadows are longer in the winter than at the same time of day in the summer because
a.
the Earth is farther from the Sun in the winter
c.
the Earth is moving slower in its orbit
b.
the Sun’s rays strike the Earth at a different angle in the winter
d.
the North Pole is in the sunlight
 

 29. 

The length of day in the Northern Hemisphere is shortest when the North Pole is tilting AWAY from the Sun.  During which month of the year does this happen?
a.
April
c.
June
b.
December
d.
September
 

 30. 

When would the highest tides happen along the Georgia coast?
a.
at sunrise
c.
during a full moon
b.
at sunset
d.
during a 3rd quarter moon
 

 31. 

Bubba and Earl were preparing a report on ocean tides. Which information should they include in their report about the greatest influence on the strength of a high tide along the Georgia Coast?
a.
the position of the Moon around the Earth
c.
the rotation of the Moon
b.
the position of the Earth around the Sun
d.
the rotation of the Earth
 

 32. 

What is the major reason that Earth ha seasons?
a.
Earth has a moon
c.
Earth has a magnetic field
b.
Earth has a tilted axis
d.
Earth has an elliptical orbit
 

 33. 

The number of hours of daylight and darkness slowly changes through the year as
a.
the orientation of the Earth to the Sun changes
c.
the Earth gets closer to the Sun
b.
the Earth gets farther away from the Sun
d.
the Earth gradually slows its rotation
 

 34. 

When do neap tides occur?
a.
during the new moon
c.
when the sun’s pull is at right angles to the moon’s
b.
when the sun’s pull is in the same direction as the moon’s
d.
during the full moon
 

 35. 

How does the Moon cause a high ocean tide on Earth?
a.
the Moon’s crater reflect light from the Sun, which decreases evaporation
c.
the Moon’s atmosphere increases cloud cover and results in rain on Earth that increases the tides
b.
the Moon’s gravitational force pulls water toward it, which causes a high tide
d.
the Moon’s ration increases the strength of the magnetic poles, which increases the tides
 

 36. 

On January 15th, there were 10 hours and 24 minutes of daylight in Jacksonville, Fl.  On the same day, there were only 9 hours and 37 minutes of daylight in New York City.  Why did New York have fewer hours of daylight than Florida?
a.
Earth is moving slower near the equator
c.
because Florida is always warm
b.
because Earth’s tilt affects the hours of daylight during the seasons
d.
because the Moon was reflecting more Sunlight
 

 37. 

What is the imaginary line that runs through the middle of the Earth, that the Earth rotate around causing day and night?
a.
the equator
c.
the Tropic of Cancer
b.
the Tropic of Capricorn
d.
the axis
 

 38. 

If the Earth revolved at a faster speed, what wouldprobably happen?
a.
we would get more rain
c.
seasons would be shorter
b.
days and nights would be shorter
d.
we would stop having seasons
 

 39. 

Ocean tides result mainly from
a.
surface winds
c.
Earth’s tilt on its axis
b.
radiant heat from stars
d.
the Moon’s gravitational pull
 

 40. 

The daily rise and fall of Earth’ oceans on its coastlines are called
a.
tides
c.
tsunamis
b.
currents
d.
waves
 

 41. 

Which of these natural events happens at regular time intervals?
a.
drought and flooding
c.
clear skies and cloudy skies
b.
high tides and low tides
d.
hot weather and cold weather
 

 42. 

Which of these is the definition of rotation?
a.
it take 365 days
c.
it takes 24 hours and causes day and night
b.
it causes the seasons
d.
it lasts for 24 months
 

 43. 

The strength of tides is related to the position of the Sun, Earth, and the Moon.  The diagrams show the alignment of the Sun, Earth, and the Moon on dates. How did the tides for September 26 compare to the tides for October 3rd?
mc043-1.jpg
a.
the tides on September 26th were stronger/higher than the tides on October 3rd
c.
September 26th and October 3rd both produced Spring tides.
b.
the tides on September 26th were weaker than the tides on October 3rd.
d.
September 26th and October 3rd both produced Neap tides.
 

 44. 

When the sun, moon, and Earth froms a 90 degree angle, we have a ________ tide.
a.
spring
c.
normal
b.
fall
d.
neap
 

 45. 

Spring tides occur during which lunar phases?
a.
first quarter and last quarter
c.
when the moon is waxing
b.
full moon and new moon
d.
when the moon is waning
 

 46. 

Even though the Earth rotates once every 24 hours, the number of daylight hours changes during the year.  During which month will the Southern Hemisphere have days with the fewest hours of daylight?
a.
December
c.
March
b.
June
d.
September
 

 47. 

mc047-1.jpg
In which position of the Earth does the Northern Hemisphere get the greatest amound of solar radiation?
a.
1
c.
3
b.
2
d.
4
 

 48. 

Tides happen in the oceans at regular times every day because of
a.
upper atmospheric disturbances
c.
density difference caused by temperature changes
b.
the tilt of Earth’s rotational axis
d.
the gravitational pull of the Sun and the Moon
 



 
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