Inv3.Exp3 Text A (pg.142-147)

What is the name of the astronomer who first discovered Kepler's first law?

• Galileo Galilei

• Isaac Newton

• Nicolaus Copernicus

• Johannes Kepler

Kai, Jackson, and Abigail are studying astronomy and they come across Kepler's first law. They start wondering who was the astronomer that first discovered this law. Can you help them?

• Galileo Galilei

• Isaac Newton

• Nicolaus Copernicus

• Johannes Kepler

What is the degree to which an orbit's elliptical shape is flattened called?

• Eccentricity

• Velocity

• Apogee

• Inclination

Anika, Samuel, and Isla are studying astronomy and they come across a term that describes the degree to which an orbit's elliptical shape is flattened. What is this term called?

• Eccentricity

• Velocity

• Apogee

• Inclination

What is the range of eccentricity for an orbit?

• 1 to 10

• 0 to 10

• 0 to 100

• 0 to 1

Where are comets mostly found in the solar system?

• Inner planets

• Asteroid belt

• Kuiper belt

• Oort cloud

During their astronomy class, Grace, Priya, and Oliver were discussing where comets are mostly found in the solar system. Can you help them with the correct answer?

• Inner planets

• Asteroid belt

• Kuiper belt

• Oort cloud

When is Earth closest to the sun in its orbit?

• December 21

• January 4

• June 21

• March 21

What causes long-term periodic changes to Earth's orbital parameters?

• Mars

• Venus

• Jupiter

• Saturn

Grace, Ethan, and Hannah are studying astronomy and they come across a concept that they find intriguing. They learn that there is a certain celestial body that causes long-term periodic changes to Earth's orbital parameters. Which celestial body are they learning about?

• Mars

• Venus

• Jupiter

• Saturn