(Retake) Orbital Motions Quiz

Two satellites of equal mass are in circular orbit around a planet. Satellite b is twice as far out. Which feels a stronger gravitational force?

• Satellite a

• Satellite b

• Both the same

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which diagram best shows the gravitational interaction between Earth and a satellite?

• 
• 
• 
• 

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

What did Kepler discover about planets and their orbital speed?

• Planets closest to the Sun will orbit with the fastest orbital speed.
• Planets with the greatest mass will orbit the Sun with the fastest orbital speed.
• Planets furthest from the Sun will orbit with the fastest orbital speed.
• Planets with the least mass will orbit the Sun with the fastest orbital speed.

In simplest terms, what does Kepler's 3rd law state? 

• planets take a long time to orbit the sun
• there is no relationship between the distance of planet from the sun and the time it takes to orbit the sun
• there is a mathematical relationship between the distance of a planet from the sun and the time it takes to orbit the sun
• every planet has the same orbital period

Tags

NGSS.HS-ESS1-4

Force of gravity is directly proportional to

• Mass
• Weight
• Distance
• Time

Tags

NGSS.MS-PS2-4

A satellite in elliptical orbit about Earth travels

• fastest when it moves closer to Earth.

• fastest when it moves farther from Earth.

• slowest when it moves closer to Earth.

• at the same rate for the entire orbit.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS3-1

NGSS.MS-PS3-5

NGSS.MS-PS2-2

Kepler is credited as being the first to discover that the paths of planets around the sun are

• circles.

• ellipses.

• straight lines most of the time.

• spirals.

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.MS-ESS1-2

NGSS.MS-ESS1-1

What is true about the area between points A, B and the Sun, and the area between points H, I and the Sun?

• The area between A, B and the Sun is the largest.
• The area between H, I and the Sun is the largest
• Both areas are equal in size
• There is not enough information to determine the areas