Inv3.Exp1 Text B

Which of the following best describes a gravitational field line?

• A line that shows the potential energy at a point
• A line directed by and tangent to the field vectors at each point
• A line that is always parallel to the surface of a mass
• A line that represents the mass of an object

Tags

NGSS.HS-PS2-4

What does the number of gravitational field lines entering a mass represent?

• The speed of light
• The potential energy of the mass
• The magnitude of the mass
• The acceleration due to gravity

Tags

NGSS.HS-PS2-4

What is the significance of the distance between gravitational field lines at a point in space?

• It represents the speed of sound
• It indicates the magnitude of the field
• It shows the potential energy at that point
• It depicts the direction of the field

Tags

NGSS.HS-PS2-4

Which law describes the behavior of the gravitational field around a uniformly distributed spherical mass?

• Coulomb's law
• Newton's third law
• Inverse-square law
• Law of conservation of energy

Tags

NGSS.HS-PS2-4

What occurs when a quantity radiates outward from a source in all directions?

• It follows a linear path
• It spreads out over a spherical surface
• It becomes a uniform field
• It decreases in magnitude linearly

Tags

NGSS.HS-PS4-3

What is the area of a spherical surface when a quantity radiates outward?

• pi r^2
• 2pi r
• 4pi r^2
• 6pi r^2

What kind of field has evenly spaced field lines and a constant magnitude?

• Non-uniform field
• Uniform field
• Random field
• Elastic field

Why is the gravitational field near Earth's surface approximately uniform?

• Because of Earth's rotation
• Due to the curvature of Earth
• Because Earth is flat
• Heights above the surface are much smaller than Earth's radius

Tags

NGSS.HS-PS2-4

How does a large, flat sheet of mass affect the gravitational field?

• It generates a non-uniform field
• It has no effect on the field
• It generates a uniform field
• It creates a circular field

Tags

NGSS.HS-PS2-4

Why do astronauts appear to float in the ISS?

• There is no gravitational field in space
• The ISS is too far from Earth
• They are in free fall, matching Earth's acceleration due to gravity
• The ISS has its own gravitational field

Tags

NGSS.HS-PS2-4