Kepler's 1st Law

Planets orbit the Sun in a shape called a(n)

• circle
• ellipse
• focus
• perihelion

Tags

NGSS.HS-ESS1-4

An ellipse is drawn around two points called

• aphelion
• perihelion
• foci
• axis

When a planet orbits the Sun, one of the foci of the elliptical orbit is 

• the axis
• the perihelion
• the center
• the Sun

Tags

NGSS.HS-ESS1-4

What has an eccentricity of zero

• a straight line
• a large ellipse
• a circle
• a small ellipse

Kepler's first law states that the orbits of the planets are oval in shape or 

• ellipses
• perfect circles

Tags

NGSS.HS-ESS1-4

Complete the following statement: The farther away two planets are the _______ the gravitational force between them.

• greater
• same
• zero
• less

Kepler's 1st law says that the eccentricity of a planet's orbit can be determined with the following equation e=d/w

If the distance (d) between foci of an ellipse is 2 and width of the ellipse (w) is 5, what is the eccentricity (e) of the ellipse?

The location of the sun within an ellipse is..

• at the center

• off-center