Sol

The length of an Earth day is determined by the time required for approximately one 

• Earth rotation

• Earth revolution

• Sun rotation

• Sun revolution

Calculate the eccentricity for the following orbit. 

• 6

• 0.8

• 0.6

• 1.2

Tags

NGSS.HS-ESS1-4

What is eccentricity? 

• a measurement of how elliptical an orbit is. 

• a measurement of the distance between the planet and the sun

• a measurement of how long the planet takes to rotate around the sun

• none of these

Which planet is third from the sun?

• Mars

• Pluto

• Venus

• Earth

Which planet is the hottest planet?

• Mercury

• Mars

• Venus

• Saturn

What do we call an atom with a different number of neutrons?

• isotope

• molecule

• ion

• electronless

What do we call an atom that loses or gains electrons?

• isotope

• molecule

• ion

• electronless

Converts mechanical energy to electrical energy

• motor

• generator

On a magnet, what do opposite poles do?

• attract

• repel

Tags

NGSS.MS-PS2-3

Can magnetic fields produce an electric current in a spinning wire circuit?

• yes

• no

Tags

NGSS.HS-PS2-5