Inv3.Exp1 Test

According to Newton's first law of motion, an object's motion does not change unless:

• The object has no mass
• There is an unbalanced force acting on it
• It is moving in a vacuum
• It is at rest

What causes objects to experience free fall?

• Air resistance
• Gravitational force
• Magnetic force
• Friction

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

The gravitational force between two objects is inversely proportional to:

• The distance between them
• The square of the distance between them
• The sum of their masses
• The difference of their masses

Tags

NGSS.HS-PS2-4

When standing on the ground, the distance from your center of mass to Earth's center is approximately:

• The diameter of Earth
• The radius of Earth
• Half the radius of Earth
• The circumference of Earth

The gravitational constant is used in calculating:

• Magnetic forces
• Electrical forces
• Gravitational forces
• Nuclear forces

Tags

NGSS.HS-PS2-4

A vector field can be used to represent:

• Only gravitational forces
• The influence of an object over its surrounding space
• The temperature distribution in a room
• The speed of sound in different media

If the mass of one object is doubled, how does this affect the gravitational force between two objects?

• The force is halved
• The force remains unchanged
• The force is doubled
• The force is quadrupled

Tags

NGSS.HS-PS2-4

If the distance between two objects is tripled, the gravitational force between them:

• Increases nine times
• bDecreases to a third
• Decreases to a ninth
• Remains the same

Tags

NGSS.HS-PS2-4

What is the function of a free-body diagram in gravitational analysis?

• To calculate the speed of an object
• To identify all forces acting on an object
• To determine the color of an object
• To measure temperature changes

Tags

NGSS.HS-PS2-4

A gravitational field is a type of vector field where the physical quantity is:

• Force per unit mass
• Velocity per unit time
• Acceleration per unit distance
• Energy per unit charge

Tags

NGSS.HS-PS2-4