Unit Test: (Test on 10/4)The night sky from Earth, Earth in Space, Gravity and Motion, The Moon phases and Eclipses, Tides
High tides are lower than usual and low tides are higher than usual.
Neap Tide
moon phases
The changing appearances of the Moon as seen from Earth
If I increase the distance between two object, what decreases?
The gravitational attraction of the objects.
June 21st---Summer Solstice
The longest day of the year for the northern hemisphere and the shortest for the southern hemisphere.
Total Eclipse
You can see total eclipses on Earth when you're located in the darkest part of the shadow (umbra) that is made and entire moon or sun is blocked out. (Rare)
Inertia
The tendency of an object to resist a change in motion.
Hydrogen and Helium
The two gasses that stars burn as their fuel.
Equinox
There is equal day hours to night time hours.
Phases of the moon at position 8?
Waning Crescent
Phases of the moon at position 2?
Waxing Crescent
Tilt of the axis
What causes Earth's seasons?
Spring Tide
What type of tide occurs during the New Moon phase?
Neap Tide
What type of tide occurs during the quarter moons?
waxing
When the Moon appears to get bigger
waning
When the Moon appears to get smaller
Spring Tide
Which tide occurs when the moon, the sun, and Earth are in a straight line?
Two things that affect gravity are....
mass and distance
Rotation
the act or process of moving or turning around a central point. The Earth rotates on its axis.
Revolution
the action of moving around something in a path that is similar to a circle. The Earth revolves or orbits the Sun (1 year).
Orbit
the path that a body follows as it travels around another body in space
Phases of the moon at position 6?
waning gibbous
Phases of the moon at position 4?
waxing gibbous
Force due to gravity.....
weight
star
A giant ball of hot gas, mainly composed of hydrogen and helium.
Lunar Eclipse
A lunar eclipse is the blocking of sunlight to the moon.
Weight
A measure of the force of gravity in an object.
Moon
A natural satellite that revolves around a planet.
Solar Eclipse
A solar eclipse is the blocking of sunlight to Earth that happens when the moon is between the sun and Earth.
Meteor
A streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere.
The resistance of an object to move.
Inertia
Spring Tide
Is it a Spring or Neap tide occurring?
Low Tide
Is it a high or low tide occurring at point A and C?
High Tide
Is it a high or low tide occurring at point D and B?
Gravity
The attractive force between objects; the force that moves objects downhill .
Phases of the moon at position 3?
1st quarter
How long does it take the Earth to make one complete rotation?
24 hours
Length of Lunar Month
29.5 Days. Time it takes the moon to show all 8 phases.
How long does it take the Earth to make one complete Revolution?
364.25 days
Phases of the moon at position 7?
3rd quarter
satellite
An object that revolves around another object in space
Tide
Caused by the difference in how much gravity from the moon and the sun pulls on different parts of the earth.
The Earth spins or rotates in this direction.
From west to east
Phases of the moon at position 5?
Full Moon
Phases of the moon where the sun, earth and moon are aligned
Full moon and New moon
What two factors keep the Earth in orbit?
Gravity and Inertia
6
How many hours pass between a high tide and a low tide?
The sun rises.....
In the east
The sun sets.......
In the west
Gravity depends on these two factors
Mass of the objects and distance between them
Phases of the moon at position 1?
New Moon
How does Earth's gravity affect objects near Earth?
Pulls them in
The apparent motion of of stars depends on the ______________ of Earth.
Rotation
High tides are higher than usual and low tides are lower than usual.
Spring Tide
90*
The angle formed by the sun, earth and moon during a neap tide.
0 or 180*
The angle formed by the sun, earth and moon during a spring tide.
Explain why the moon has phases?
The moon's position changes in relation to the sun and Earth.
Rotation
The motion of earth that affects the tide cycle.
orbit
The path that the moon takes around earth.
23.5* Tilt of Earth
The reason the Earth experiences seasons.
What is gravity?
a force
Force
a push or pull
As the distance between two objects _____________ the gravitation pull ______________.
increase; Decrease
The tendency of an object to resist a change in motion is called.....
inertia
Two forces that keep objects in orbit are.....
inertia and gravity
Crescent moon
when the size of the illuminated portion of the moon is less than half but not a quarter moon, lasts about 6 days can be almost no white or just a little less than 1/2 white
