The Sun contains about ______ % of the mass of the solar system.

• 50

• 75

• 90

• 99

An astronomical unit is based on __________.

• the distance from the Sun to interstellar space

• the distance Earth's orbit makes around the Sun

• the distance from the Sun to Earth

• the distance from Earth to the Moon

Tags

NGSS.MS-ESS1-3

The outer planets are called _______________.

• gas dwarfs

• terrestrial giants

• gas giants

• gas monsters

Which planets are closer to the Sun than Earth?

• Mercury and Mars

• Mars and Venus

• Mercury and Venus

• Mercury and Jupiter

Tags

NGSS.MS-ESS1-2

Which planet is Uranus?

• 
• 
• 
• 

What is the shape of a planet's orbit?

• circle

• oval

• ellipse

• foci

What are the two forces keeping Earth in orbit around the Sun?

• gravity and speed

• speed and distance

• inertia and gravity

• mass and distance

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Gravity....

• object with larger mass pulls smaller mass object towards it

• object with larger mass pushes smaller object away from it

• keeps objects moving in a straight line

• keeps an object at rest

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Newton discovered...

Choose all that apply!

• an object in motion will stay in motion unless acted on by an outside force

• an object at rest will stay at rest

• inertia keeps objects moving in a straight line

• the shape of the planet's orbit

Tags

NGSS.MS-PS2-1

One AU is equal to __________________________.

• 150,000,000 miles

• 150,000,000 km

• 200,000,000 miles

• 93,000 km

Tags

NGSS.MS-ESS1-3