EAS SEM A 2023 Final Exam/Semester Test Review

According to Kepler’s second law, which factor is constant as a line between a planet and the sun sweeps out two equal areas at different places as it moves along its orbit?

• the distance the planet moves

• the distance from the sun to the planet

• the planet's speed

• the amount of time

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Observing a planetoid orbiting far from the sun, astronomers noticed that the object slowed down in its orbit in a way they did not expect. Which is a reasonable conclusion?

• The planetoid is being attracted toward another massive object.

• The planetoid is beginning to change its type of orbit.

• The planetoid is being repelled by something.

• The planetoid is slowing due to friction.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which shows the stars in the correct order, from smallest in size to largest?

• white dwarf, red supergiant, Sun

• Sun, white dwarf, red supergiant

• Sun, red supergiant, white dwarf

• white dwarf, Sun, red supergiant

Tags

NGSS.MS-ESS1-3

What is the order of the flow of energy from its production within the sun until it reaches Earth?

• • 
    

    nuclear fusion; radiation; convection currents; radiation

• nuclear fusion; radiation; convection currents

• radiation; convection currents; radiation; nuclear fusion

• radiation; nuclear fusion; convection currents; radiation

What does Kepler’s first law state about the orbits of planets in our solar system?

• Their distance from the sun is a constant.

• The major axis is the same length as the minor axis.

• They have elliptical orbits.

• Their orbits are all circular.

Tags

NGSS.MS-ESS1-1

Which variables are involved in understanding Kepler's third law of motion?

• period of revolution, period of rotation

• orbital velocity, distance to sun

• eccentricity of orbit, rotational velocity

• rotational velocity, distance to sun

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

Which does the shift of the hydrogen absorption spectrum of a galaxy provide evidence for? Select the three correct answers.

• composition of the universe

• • 
    

    expansion of the universe

• • 
    

    number of stars in the galaxy

• The Big Bang theory

• motion of the galaxy

Tags

NGSS.HS-ESS1-2

Choose the sentence in the reading below that describes the lifespan of the Sun.

What is the Lifespan of The Sun?

The Sun has always been the center of our solar system. The Sun is merely one of countless stars in our Universe, and like all stars, it has a lifespan, characterized by a formation, main sequence, and eventual death. This lifespan began roughly 4.6 billion years ago and will continue for about another 4.5 – 5.5 billion years, when it will deplete its supply of hydrogen, helium, and collapse into a white dwarf.

Currently, the  Sun is about halfway through the most stable part of its life. This will stay the case for another four billion years, at which point, it will have exhausted its supply of hydrogen fuel. When that happens, the Sun as we know it will go through a drastic change!

• Currently, the  Sun is about halfway through the most stable part of its life.

• This will stay the case for another four billion years, at which point, it will have exhausted its supply of hydrogen fuel.

• The Sun is merely one of countless stars in our Universe, and like all stars, it has a lifespan, characterized by a formation, main sequence, and eventual death.

• This lifespan began roughly 4.6 billion years ago, and will continue for about another 4.5 – 5.5 billion years, when it will deplete its supply of hydrogen, helium, and collapse into a white dwarf.

Which of the following layers is farthest from Earth's center?

• mesosphere

• asthenosphere

• outer core

• lithosphere

At which continental feature would you expect to find metamorphic rock? Select the correct answer.

• lake bottom

• mountain

• valley

• volcano

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-1