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Science Chpt 6
The smashing together of particles.
A mixture of frozen gases, ice, dust, and rock that moves in an irregular circle around the Sun.
Bursts of heat and energy that stretch out from the corona and chromosphere into space.
a small object in space its name changes when it hits earths atmosphere
List the planets is their order from distance from the sun.
What are the smallest and largest planets?
Mercuery and Jupiter
Define the effects of the suns gravity on the planets.
The gravity gets weaker as the planets get farther away.
Find Galileo's most significant discovery with his telescope.
He used a telescope to tell that the moon revolved around Jupiter and not everything revolves around the Earth.
How do you measure the mass of an object?
What is the largest body in the solar system?
Describe orbital motion of the planets in our solar system.
an oval motion called an ellipse
What things keep the planets moving in their orbits?
Gravity from the Sun and Inertia...inertia is the tendency of a moving object to keep moving in a straight line.
Which planet ha the greatest surface of gravity?
How is gravity impacted when the distance between two objects decreases?
Gravity's pull increases as the distance between two objects decreases...the closer the 2 objects are, the more gravitational pull.
What affects the force of gravity?
Gravity's force is affected by the mass of the two objects and how far apart they are.
What keeps artificial satellites in orbit around the Earth?
The pull of gravity towards the sun is balanced by the satellites forward motion.
What characteristics do planets that are further from the Sun have in common?
The farther planets are bigger, have rings, and have gas rather rock for their surface materials.
Be familiar with the sun. What gases make it up? Which is the hottest layer? How would you determine the mass?
Made of mostly hydrogen & helium. The core is the hottest layer. Mass is determined by the length of time it takes for a planet to make around the sun, and the distance between the planet & the sun.
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