Unit Test: (Test on 10/4)The night sky from Earth, Earth in Space, Gravity and Motion, The Moon phases and Eclipses, Tides

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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


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