Kepler's Laws

Who first theorized the Laws of Planetary Motion?

• Tycho Brahe

• Isaac Newton

• Johannes Kepler

• Galileo Galilei

What shape do planetary orbits take?

• Ellipses

• Circles

• It depends

• Straight lines

An ellipse has two foci (points it is centered on). For all planets, what are those two foci? (Select two!)

• The center of the universe

• The Sun

• The planet itself

• Nothing, just another point in space

When a planet is _________________________ the sun, it moves _____________________

• Closer to; slower

• Farther from; faster

• Equidistant from; slower

• Closer to; faster

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

If a planet is ________________________ the sun, its year will be _________________

• farther from; shorter

• farther from; longer

• closer to; longer

• closer to; the same length as its day

Tags

NGSS.MS-ESS1-2

What would happen to the moon if there was no gravity between it and Earth?

• It would fly off in a straight line

• It would crash into the Earth

• It would stay put in space

• It would not exist

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4