Planets and Orbit

A rock thrown hard enough sideways will orbit the Earth once every _____

• 9 minutes

• 90 minutes

• 9 hours

• 90 hours

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The planets of our solar system have orbits that are _____

• circular

• ellipses

• parabolas

• hyperbolas

Tags

NGSS.MS-ESS1-2

In order to break free of a planet's gravity, an object must be moving at _____ .

• escape velocity

• getaway acceleration

• a break-away pace

• a liberation altitude

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

What prevents planets from drifting off into space and keeps it in the planets in our Solar System?

• Gravity

• Weight

• Friction

• Forward Motion

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

What prevents planets from pulled into and crash into the Sun?

• Gravity

• Weight

• Friction

• Inertia (Forward Motion)

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

What are three things all planets have in common?

• they are spherical, they have at least one moon and they have gravity

• Orbit the sun, massive enough that their gravity controls all objects in the area and they are spherical

• they have at least one moon, they are spherical and they were made by accretion

• they are spherical, they orbit the sun and they have living organisms 

A planet with a large orbit has...

• a short day

• a long day

• a long year

• a short year

Tags

NGSS.MS-ESS1-2

A planet with a short orbit has...

• a short day

• a long day

• a long year

• a short year

Without gravity, the stars, planets and all objects in the universe would _______.

• continue to orbit each other

• move in a random direction

• move in a straight line

• stop moving

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

What would happen to Earth if its forward motion stopped?

• Earth would continue to orbit in our Solar System normally.

• Earth would sit motionless and not moving.

• Earth would drift off in space because nothing would hold it in the Solar System.

• Earth would move toward the Sun and eventually crash into it.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4