EES 1.1.1 CFA

Kepler's 1st law states that planets orbit the sun in paths called

• circles

• periods

• epicycles

• ellipses

The earth’s closest point to the sun is called the ...

• aphelion

• perihelion

• helion

• all of these answers

What is the birthplace of stars?

• Polaris

• nebula

• main sequence

• white dwarves

The path of a planet around the sun is called it’s

• orbit

• precession

• period of rotation

• retrograde motion

Kepler's 2nd Law states that

• planet's cover equal areas in equal time

• telescopes are always with lenses to look at planets

• planets are circles

• planets orbit equally to each other

What causes the earth's nutation?

• orbit

• elliptical path around the sun

• ocean tides

• the moon

Because of the earth's precession, in 26,000 years the north pole of the earth will point at what star?

• Alpha centauri

• Polaris

• Betelguise

• Vega

Another word for a planet's orbit is ...

• revolution

• rotation

• rewind

• reflection

The change in direction of the earth’s axis without change in tilt, which changes the star above earth's north pole is called...

• precession

• Local Group

• Orion

• Solar System

In this diagram, are the objects rotating or revolving around the center.

• Rotate

• Revolve

• perihelion

• aphelion