Science 4th Qtr EQT Review

Why does the sun appear to be the brightest star?

• It is the newest.

• It is the largest.

• It is the hottest.

• It is the closest.

What determines the brightness of a star from Earth?

• surface temperature

• distance in light years

• size of the star

• chemical makeup

What is the largest body in our solar system?

• Earth

• the Sun

• Jupiter

• the Moon

What is at the center of our solar system?

• medium planet with an atmosphere

• a star composed of carbon and nitrogen

• a star composed of hydrogen and helium

• a black hole that was once a star

Which of the following is determined by gravity?

• orbits of the planets around the Sun

• rotation of a planet on its axis

• tilt of the Earth's axis

• phases of the moon

About how many Earth days does it take the Moon to travel around the Earth?

• 1

• 27

• 180

• 365

What is one rotation of Earth on its axis equal to?

• 1 day

• 1 week

• 1 month

• 1 year

Which explains why the Moon can be seen at night from Earth?

• reflected light from the Sun

• gases burning

• reflected lights from Earth

• absorbed light during the day

What keeps planets within the solar system?

• elliptical motion of planets around the Sun

• gravitational force between planets and Sun

• magnetic field surrounding the Sun

• electromagnetic radiation from the Sun

Which of the following reasons would explain why a star looks larger than another?

• the stars were orbiting one another

• planets were orbiting the star

• one star was closer in distance

• they were in different parts of the sky