8th grade semester 1 EOC (astronomy, motion, forces, sci)

 Light years are most helpful to scientists when they are measuring what?

• The speed of light
• The distances between objects in space
• The life cycle of our Sun
• The speed of a planet's orbit around the Sun

Tags

NGSS.MS-ESS1-3

Our Milky Way is a ______________ galaxy.

• spiral

• elliptical

• irregular

• burst

Tags

NGSS.MS-ESS1-2

Planets closer to the sun have a ___________ gravitational attraction along with a ___________ revolution speed when compared to outer planets. 

• weaker, slower
• weaker, faster
• stronger, faster
• stronger, slower

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Determining a star's mass identifies the star's current what?

• position in the galaxy
• temperature
• life cycle
• gravitational pull

Which of the following can be located between the planet Mars and the planet Jupiter?

• meteor shower
• asteroid belt
• comet
• meteorite

Tags

NGSS.HS-ESS1-4

True or False:  The smallest known planet, is also the planet with the greatest density.  

• True- Mercury is the smallest planet as well as the most dense
• True- Neptune is the smallest planet as well as the most dense
• False- Mercury is the smallest planet, but Jupiter has the greatest density
• False- Earth is the smallest planet, but Mars has the greatest density

Our universe is constantly __________________ because galaxies are moving ______________ each other.

• shrinking, towards
• rotating, around
• growing, away from

Tags

NGSS.HS-ESS1-2

Which of the following is TRUE of comets?

• They have an icy core
• They have tails made up of gas & dust
• Both answers are correct
• Neither answer is correct

A 600g basketball, a 500g football, a 150g baseball, and a 50g yo-yo: four toys. If you had to throw one of the four, which one would take the MOST force to throw?

• 600 g basketball

• 500 g football

• 150 g baseball

• 50 g yo-yo

Tags

NGSS.MS-PS2-2

In canoeing, you paddle backward to go forward. Canoeing can be explain by Newton's third law that says

• The water transfers energy to the boat to make it move.

• Once the boat is moving forward, it will naturally continue to move forward.

• As the paddle push the water backward, the water pusher the paddler forward with an equal force.

• The body of water has a larger mass and will exert a larger force on the paddle then the paddle does on the water.