Ch.16

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1 point

Which choice below best explains the movement of constellations?

You observe the Big Dipper constellation in the night sky. A few hours later you noticed that the constellation had moved toward the western horizon of the sky.

The stars in the constellation rotate

The Earth rotated

The stars in the Big Dipper are rotating

The stars in the Big Dipper sometimes change their arrangements in the sky

1 point

Which is a discovery that Galileo did NOT make with his telescope?

Jupiter has four moons

Mars has dust storms

The moon has mountains

The sun spins around

1 point

Which statement is true about the sun.

Its a constellation

Its smaller than the earth

Its an average-sized star

Its solid under its surface

1 point

A photometer measures

approximate distance to stars

wavelengths of infrared radiation

the exact temperature of stars

the amount of space dust

1 point

On page 519 it asked how long solar flares last. How long?

From minutes to hours

From seconds to days

1 point

Which star is closest to Earth?

Rigel

Barnard's Star

Sirius

the Sun

1 point

Which is the cloud of gas and dust a new star forms in?

nebula

supernova

black hole

white dwarf

1 point

What color of stars are the coolest?

White

Red

Blue

Orange

1 point

Which star is the hottest?

Sun-yellow
Betelgeuse-red
Rigel-blue white
Arcturus-orange

Sun

Betelgeuse

Rigel

Arcturus

10.

1 point

What instrument do you need to measure the angle of a star above the horizon?

microscope

telescope

sextant

satellite

11.

1 point

What type of galaxy do we live in?

Elliptical

spiral spiral

irregular

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