Energy Transformations
OUR STAR
Temporary Features
All The Stars
smaller bodies
100
What energy transformer does this? Electricity ---> Thermal Energy
a toaster, among many other answers
100
What size is the Sun?
medium-sized
100
cooler, darker, temporary regions of the Sun's surface
sunspots
100
Why does the Sun look so large?
because it is so close [92,000,000 mi. 150,000,000 km 7 1/2 light minutes]
100
The Astroid Belt is located between ____ and ____.
Mars and Jupiter
200
What is the energy transformation for a generator? DAILY DOUBLE!! What does the opposite?
mechanical energy --> electricity a motor or anything with a motor in it
200
What feature of the Sun is only visible during a total Solar eclipse?
the corona
200
a loop of plasma extending from the Sun's surface
prominence
200
What is an object that we have we studied that is incredibly large, but that we still cannot see?
another galaxy, among many other answers
200
What smaller body in the solar system is composed of a rocky core, layers of ice and a tail of vapor when it nears a star?
a comet
300
What is the energy transformation for an electric motor?
Electricity --> Mechanical Energy
300
What are the color and class are the Sun (p.223)
a Yellow, G-Class star
300
What object is made of rock and minerals and revolves around the Sun?
asteroid
300
What is the speed of any E.M. wave from stars through outer space (the speed of light)?
186,000 mps 300,000 kps
300
Why do most meteors burn up in the Earth's atmosphere?
Gravity speeds up the meteors; friction with the air burns them up.
400
What does this energy transformation for a plant?
light --> chemical energy
400
What permanent feature of the Sun gives it its brightness?
the photosphere
400
when plasma shoots away from the Sun violently
a solar flare
400
Name 3 stars and their colors.
[many answers; see p.223 top]
400
Why do asteroids have neither moons nor atmospheres?
They do not have enough mass to have very much gravity.
500
What is the energy transformation for a meteor?
Gravity --> mechanical energy
500
What permanent feature of the Sun gives it its color?
the chromosphere
500
Put these colors in order of surface temperature from least to most hot: blue red white yellow
red, yellow, white, blue
500
Why do some asteroids have a long, elliptical orbit? DAILY DOUBLE
They were probably comets that have completely out-gassed. Where do astronomers think most comets come from? The Kuiper Belt
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