What is one revolution of the earth around the sun called?
a year
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Why do we get seasons on Earth?
b/c the earth is tilted, so when we rotate the sun reaches part of the earth causing summer and the other side causing winter
15
Tell me 3 pieces of information about the first day of summer
1-the longest day of the year 2-June 20th or 21st, 3-summer solstice
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Tell 3 things about the first day of winter
1) the shortest day of the year 2)Dec 21st or 22nd, 3)winter solstice
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Tell me 3 things about the first day of Spring
1) vernal equinox 2) equal day & night 3)starts the 21st or 22nd of March
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Tell me 3 things about the first day of Fall
1)autumn equinox 2)equal day/night 3) September 22nd or 23rd
15
Tell 2 factors that influence the gravitational force between 2 objects
1)the size of the object 2) distance b/w objects
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What is force?
Push or Pull
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What is weight?
how much gravity pushes down on an object
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What is mass?
Mass is how much stuff is in an object
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Explain why weight & mass are not the same thing.
Weight is affected by gravity and mass is not
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What would happen if the moon was only affected by the Earth's gravity and didn't have any motion of its own?
The moon would go straight into the earth.
15
Define apparent motion
Apparent motion is something that seems to be moving but it's not.
15
Tell two examples of apparent motion
1)airplane is moving but looks like houses are moving 2)riding in a car - trees seem to be rushing by you, but you are actually moving
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What's the difference between rotation and revolution?
Rotation-when a planet or moon turns all the way around or spins on its axis one time. Revolution -a planet or moon travels around the body it is orbiting 1x.
