Inv3.Exp2 Vocabulary

What is an orbit?

• The center of mass between two celestial bodies
• A regular, repeating path one object takes around another in space
• The rotation of a planet on its axis
• The force that keeps planets in motion

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which describes a geosynchronous orbit?

• An orbit that matches Earth's rotational period
• The fastest possible orbital speed
• An orbit that occurs only during eclipses
• The path between two planets

Tags

NGSS.HS-ESS1-4

What is eccentricity in orbital mechanics?

• The speed of an orbiting body
• The distance from the Sun
• How much an orbit deviates from being circular
• The time taken to complete one orbit

Tags

NGSS.HS-ESS1-4

What defines velocity?

• Mass multiplied by acceleration
• The force of gravity
• The rate of directional change
• Speed combined with direction of motion

What is a lunar eclipse?

• When the Sun blocks the Moon
• When stars align with the Moon
• When Earth's shadow falls on the Moon
• When the Moon appears full

Tags

NGSS.MS-ESS1-1

What characterizes a new moon?

• When the Moon is closest to Earth
• When the Moon's dark side faces Earth
• When the Moon is farthest from Earth
• When the Moon appears half-lit

Tags

NGSS.MS-ESS1-1

What is centripetal force?

• A force pushing objects apart
• A force directed toward the center of circular motion
• The force of gravity only
• The force of planetary rotation

What is momentum?

• The speed of an object
• The direction of motion
• Mass in motion
• The force of impact

Tags

NGSS.HS-PS2-2

What defines the equator?

• The longest line around Earth
• The axis of rotation
• The planetary tilt
• An imaginary circle equidistant from poles

What is a barycenter?

• The center of mass of orbiting objects
• The center of a planet
• The midpoint of an orbit
• The point of greatest gravity

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4